Machine Condition Monitoring Market

Machine health monitoring is a process of supervising the machinery to identify considerable changes that indicates a fault. The use of machine health monitoring system allows timing for maintenance to be scheduled in a manner that prevents the failure of system and thus avoid its consequences. Machine health monitoring system benefits machinery by identifying the fault before it develops into a major failure. The growing importance of asset management and manufacturer’s drive to optimize productivity and increase efficiency of plant is driving the demand for machine health monitoring equipment market.

Additionally, increasing emphasis on asset utilization and the rising need for elimination of possible machine breakdowns which may lead to redundant maintenance costs has led to an increased adoption of this technology. This technique is generally used on rotating equipments and other machinery such as electric motors, pumps, presses and internal combustion engines. Manufacturing processes, such as breweries and oil refineries, employ monitoring systems, to measure critical parameters. This system makes use of sensors for the purpose of monitoring the machines. SCADA (Supervisory Control and Data Acquisition), is used to analyze information and provide data.

This system is used to monitor current and historical performance of equipments. Machine health monitoring facilitates prediction of machine failure which minimizes production losses, by planning corrective activities beforehand. This technique is primarily aimed towards reducing cot and repair time and is considered to be an efficient strategy in the manufacturing industry. Machine health monitoring involves strategic tools which help in decision making processes.

Various products of machine health monitoring systems are corrosion monitoring equipments, thermograph equipments, lubricating oil examination equipments, ultrasound emission equipments and vibration monitoring equipments. These products make use of various components such as spectrometer, corrosion probes, spectrum analyzer, ultrasonic detector, thermal camera and vibration sensor. The rising need for a system to decrease the risk of unforeseen machine failures and implementation of planned preventative maintenance techniques has increased the demand for machine health monitoring system Obtaining a return on investment from the installment of machine health monitoring system, and irregular maintenance cycles which may require certain modifications in existing machinery to fit the new systems are some of the factors that are constraining the growth of the market. Smart sensors development, vibration sensor machinery and development of Internet of Things (IoT) for machine health monitoring are some the current trends in this industry that are likely to drive the market during the forecast period.

Currently, North America accounts for the largest market share. The growth is mainly driven by the technological advancements in the industrial processing which in-turn have increased the adoption of machine health monitoring systems in this region. However, with growing manufacturing bases of the major market players in automotive, semi-conductor and consumer electronics sectors, Asia-Pacific is expected to be the key contributor for the market growth among all the geographic regions in near future

Where the often quoted ISO 10861-21 falls short for CMS

There is dire need for the system certification of condition monitoring, mostly because current CMS vendors offer at least nine different approaches for basic sensor selection and placement. This confusion originally prompted the call for a certification for owners to assist in the selection of a viable CMS for wind.

After speaking at recently NREL and UVIG events, I was asked if there was a certification for CMS systems in the wind industry. The answer is yes…and no. To investigate further, we will go through the available standards for CMS in wind to find what is helpful.

The standard for vibration in wind turbines is listed as ISO 10816-21. This ISO standard states it “does not apply to diagnostics or fault detection.” It also states that the vibration “evaluation zone boundary values are not intended for use as acceptance values. These must be agreed upon between the manufacturer and user.” So how does the standard help?

To be clear, if you adhere to ISO 10816-21, there is no guarantee you will have a successful CMS program. Also note that the standard applies to a rather wide range of wind turbines, from 200 kw up to 3-MW ratings.

So, what does the standard suggest regarding monitoring? It suggests the use of piezoelectric accelerometers and separates equipment into rotating and non-rotating components.

For rotating components, the standard suggests:

Sensor placement – For rotating components (drive train is a given), it advises the use of sensors in three axis across the drive train. This is not standard for many reasons. Using accelerometers in three axes is not beneficial in determining a failure component. A single sensor can work except when determining some defects. However, as this standard states, its purpose is not intended to measure specific defects.

The main bearing – Three-axis measurements are recommended but not demodulated readings for detecting early bearing defects, nor time waveform measurements. The standard makes no suggestion for the number of lines-of-resolution in the spectrum, averaging, or overlap.

Gearbox – Three-axis measurements again but no demodulated reading for early bearing defect detection nor time waveform measurements. No suggestion for lines-of-resolution in the spectrum, averaging or overlap.

Generator – Three-axis measurements yet no demodulated reading for early bearing defect detection nor time waveform measurements. No suggestion for lines-of-resolution in the spectrum, averaging or overlap.

Number of sensors

It is not practical to use the suggested 17 sensors across the drive train. Typically, most commercial CMS systems use 7 to 8 sensors. Seventeen of them are cost prohibitive. They will also generate too much data. Consider that 7 to 8 sensors installed on 100 towers will produce an annual data volume is in excess of two-million measurements based upon once-a-day intervals.

Using three sensors on a generator bearing to find a bad bearing within is simply not practical. Installation costs go up, data volume increases, hardware costs double, and network load increases as well to get the data out. So this portion of the specification is simply not practical.

On Non-rotating equipment:

Sensor placement – The standard suggests three axes in two locations to monitor the bedplate of the tower for structural purposes. This is more for a process and controls purpose than a condition-monitoring function. Most bedplate monitoring I have been involved with is at a prototype level, certainly not at a fleet level.

Number of sensors – The standard specifies installing eight low-frequency sensors. Again, as with 17 sensors on the drive train, adding eight expensive low frequency sensors is not a good suggestion. It is doubtful that any owner would install eight sensors per tower to understand the vibration of the structure.

Measurement parameters – The standard suggest performing evaluations in 10-minute periods. This really requires specialized equipment. It is certainly not something that is fleet advisable. At 10 minutes per tower, the data volume would be significant, and the data storage and analysis substantial.

Vibration levels – The standard suggests measuring only acceleration and velocity. The accompanying chart (above) shows overall vibration levels in velocity measurement units.

Other standards

ISO 10816-21 standard does not give the end user guidance for acceptable vibration levels, diagnostics, or fault detection. So what can it offer the owner? It does advise as to structural vibration measurements and parameters as well as sensor types and placement. To be clear, not one CMS system commercially available today, marketed and installed, meets this standard.

However, portions of two other suggested standards might be helpful to owners. They are:

• VDI 3832, for rolling element bearing noise and vibration. This also has a wide range of application in wind turbine size. And,

• ISO 13373-2, techniques for bearing and gearbox defects analysis.

So between rotating and non-rotating components, the suggested 25 sensors per tower is literally three times the amount normally installed. Owners show pause at the current eight-accelerometer pricing per tower. Twenty-five is likely not realistic.

Here is what’s missing and crucial to a successful CMS program:

Quality of the sensors – There are at least 10 to 12 sensor factors that are not covered. Cables are not even discussed.

Ability of the software – There are no specifications on measurement parameters, measurement types, resolution, averaging, and a dozen other measurement factors.

Ability of the analyst – There currently are three companies that certify vibration analysts. It certainly makes sense to have an analyst who is certified but this is no guarantee that the person is a good analyst. Ironically, the certifying bodies that teach the theory and background of vibration analysis measurements, teach very little on actual vibration analysis.

We will discuss these important factors in a following article. We will also look at what makes sense for a standard for CMS installs to benefit the owners, ISPs, and manufacturers. 

Source: http://www.windpowerengineering.com/featured/often-quoted-iso-10861-21-falls-short-cms/ 

Vibration sensor market projected to hold automotive industry as the fastest growing segment till 2020 according to market forecasts

According to the report “Vibration Sensor Market Analysis: By Technology (Capacitance, Piezo-resistive, Strain Gauge) By Material (Ceramics, Quartz, Silicon) By Industry (Automotive, Nuclear, Consumer Electronics, Machine & Structural Monitoring, Mining) Forecast - (2015 - 2020)”, published by IndustryARC, the Vibration Sensor Market in automotive industry to reach $881.3 million by 2020

The Vibration Sensor Market has witnessed significant deployment rate in the past few years majorly in automotive and aerospace industry. The vibration sensors in automobiles perform real time monitoring of the automobile mechanical systems in order to prevent breakdown and intimate the drivers beforehand.

The vibration sensor market in automotive industry is projected to attain market worth of $881.3m by 2020 as per the IndustryARC analysis. The recent advancements in the automobile systems such as driver assistance systems, commercial telematics solutions have embraced the sensor technology at an extensive level and have perforated high ends market of the automotive industry. OEMs are constantly making efforts to make these technologies accessible to a larger customer base rather than serving the niche segment.

The awareness among the end users has remarkably increased and is acknowledging the offered technology. Europe and North America are the dominant regions in the vibration sensors market owing to the presence of leading end user industries in nations such as The U.S.A, Canada, Germany, and the U.K.

Maintenance and Safety of the equipment has always been the prime objective of the manufacturing industry. A number of solutions has been developed integrating electronics into the mechanical components to improve the operational efficiency and minimize the complexity of the process.

Vibration sensors help to analyze the frequency and intensity of vibrations in order to take decisions regarding performance, production and quality of the object in various industries. These sensors are extensively used to determine the specific cause and location of machinery problems.

Vibration sensors are capable of measuring and analyzing displacement, linear velocity, and acceleration. These sensors primarily facilitate measurements of vibration displacement, velocity and acceleration.

With the development of computer technology, electronic technology and manufacturing process, a variety of vibration sensors have drawn attention and importance in various industry verticals. With the shift towards intelligent or automatic monitoring of machinery in manufacturing plants, vibration sensors market is estimated to benefit hugely and grow significantly in coming years.

Apart from automotive, vibration sensor has revealed promising applications for equipment maintenance in non-destructive testing, nuclear, oil & gas industry. Nuclear power plants majorly depend upon vibration monitoring systems for ensuring continuous power generation and safety of personnel and equipment.

Nuclear reactor outage costs are very high and thus unexpected downtime may lead to enormous losses to the company. Thus approximately 90% of the operation cost is utilized for the monitoring of machinery health using equipment such as vibration sensors.

In Oil & Gas industry, the vibration sensor market is speculated to register double digit CAGR by 2020. Vibration monitoring systems are highly effective in determining machinery health, planning maintenance intervals, reducing downtime and avoiding catastrophic loss.

Sensors offering hazardous area approvals are widely used on gas and oil well heads, supply lines, natural gas power engines, multi-stage gas compressors and other machinery operating in hazardous environments.

Source: http://industryarc.com/Report/165/Vibration-Sensors-Market-Forecast.html 

Vibration sensor helps analyze sense of touch

Type an email on your computer. Raise a glass to your lips. Feel for the light switch in a dark room. Simple, everyday tasks can demand subtle interactions between our hands and our surroundings, but, surprisingly, much remains unknown about the mechanics of the sense of touch.

"Most people don't have a very clear picture of how touch sensation actually arises," said UC Santa Barbara faculty member Yon Visell, an assistant professor in the Department of Electrical and Computer Engineering and in the campus's Media Arts and Technology graduate program. While people are familiar with touch as consisting of the interaction between two surfaces -- the skin and whatever it is in contact with -- they are less aware of the subtle ways that touch sensing helps us to identify and navigate our surroundings, he said.

For instance, if your fingers are numb, you may still be able to move them, but be hesitant to pick up an object or send a text message, because of the lack of sensation -- think of what happens when your foot or arm falls asleep. According to a study co-authored by Visell that appears in the Proceedings in the National Academy of Sciences, our hands in particular have access to rich tactile information that travels far beyond the tips of our fingers. This may help to explain some remarkable capabilities of the sense of touch -- why, for example, people whose fingers have been anesthetized are still able to feel fine surface detail, as has been demonstrated in prior research.

"The way they seem to be able to do this is by using mechanical signals, or vibrations, that travel beyond the fingers, farther up the arm," said Visell. "The hand has specialized sensory end organs distributed widely in it that can capture such mechanical vibrations at a distance."

Their study used a specialized array of tiny accelerometers, or vibration sensors, worn on the sides and backs of the fingers and hands. With this device, the researchers were able, for the first time, to capture, catalog and analyze patterns of vibration in the skin of the whole hand that were produced during active touch. Actions such as tapping and sliding one or several fingers over different types of material, as well grasping, gripping and indirect tapping (using an object to tap on a surface) all gave rise to distinctive vibration signatures. "We can liken this to the different ways that a bell will sound if it is struck by a metal hammer or a rubber mallet," said Visell.

"How do those signals reflect what it is that we're doing and what it is we're touching? Do parts of the hand nearer to the wrist receive significant information about the shape of the object that we're touching, what it's composed of, or how we're touching it? How are different parts of the hand involved in touch sensing?" Visell said of the fundamental questions that motivated his group to pursue this research. "It is possible that the hand, like the ear, is able to use vibrations produced through contact in order to infer what is being touched, and how the hand is touching it."

According to the study, the vibrations generated through touch, and the distribution of vibrations in the hand, depend very closely on the type of action and the object being manipulated. For instance, vibration patterns produced by tapping a single finger were stronger than those made by grasping, gripping or sliding, but were much more localized in the finger. The patterns of vibration throughout the skin of the hand also varied according to the number of fingers used, the object being manipulated and the action being performed. Tapping the index and middle finger alone was sufficient to elicit vibrations that covered most of the surface of the hand. Even the size of the object being grasped - for example, whether a glass was small or large -- influenced the vibrations that were felt by the hand.

The applications for the information gained in this study are many. They may contribute not only to the foundations of our understanding of touch, but also contribute to fields such as virtual reality by enabling wearable technologies that allow the user to feel if he or she is picking up a feather or a brick while visiting a virtual world. This work may also enable robots to touch and interact more effectively within changing and uncertain environments, and allow future generations of prosthetic hands to provide their wearers with more natural touch feedback, enabling a greater range of functionality to be restored.

Source: http://www.news-medical.net/news/20160329/Vibration-sensor-helps-analyze-sense-of-touch.aspx 

PIEZOELECTRIC SMART MATERIALS GLOBAL MARKET2016-2020

A new report has been added by wiseguyreports in its research database. This market research study segments the global piezoelectric smart materials market by type (ceramics, polymers, and composites), by application (motors, transducers, sensors, and building materials), and by end-users (transportation, healthcare, leisure and sports, construction and infrastructure, and agriculture and food). This report also segments the industry by geography (the Americas, APAC, and EMEA). The key vendors identified in the market are AAC Technologies, Advanced Cerametrics, Arkema, KYOCERA, and Solvay.

Outlook of the piezoelectric smart materials market

Smart materials are special building materials whose properties change when subjected to external stimuli such as stress, temperature, moisture, pH, or magnetic field.  Piezoelectric materials are a class of smart materials that produce a voltage when mechanical stress is applied. These materials are widely used in sensors and help in measuring fluid density, the force of impact, and fluid composition. Technavio’s market research analysts have estimated the global piezoelectric smart materials market to grow at an impressive CAGR of close to 13% over the forecast period. The increasing demand for piezoelectric smart materials from the military and aerospace sector is expected to drive the market for piezoelectric smart materials globally. These materials help in controlling the airflow across the wings of an aircraft and maintaining it during take-off and landing. Furthermore, these materials are also used to solve common problems with the aircraft, such as engine vibration, high cabin noise levels, ice formation on wings, flow separation due to turbulence, and control surfaces in cold climatic conditions. Also, piezoelectric materials find extensive applications in military and defense sector like smart sensors, smart nanorobotics, smart combat suits, and smart skins. Therefore, the numerous applications of piezoelectric smart materials in military and aerospace industry will spur the growth of this market until the end of 2020.

In this market research study, analysts have estimated factors like the increasing applications of piezoelectric materials in nanotechnology to impel the prospects for market growth until the end of the forecast period. For example, piezoelectric smart materials are used in the manufacture of smart nanofibers that are used in light-emitting transistors and advanced organic solar cells. The recent advancements in the nanotechnology sector will, in turn, bolster this market’s growth potential during the forecast period.

Segmentation by application and analysis of the piezoelectric smart materials market

• Motors
• Transducers
• Sensors
• Building materials

During 2015, the automobile motors industry dominated the piezoelectric smart materials market with a market share of more than 60%. Factors such as rapid growth in the automobile industry will translate into the demand for piezoelectric materials during the forecast period.

Geographical segmentation of the piezoelectric smart materials market

• Americas
• APAC
• EMEA

In this market study report, the analysts have estimated the Americas to be the largest market for piezoelectric smart materials during the forecast period. The increasing demand for MEMS sensors, used in airbags and anti-lock braking systems, will translate into the demand for piezoelectric smart materials in the Americas. The market for piezoelectric smart materials will account for a market share of more than 47% until the end of 2020.

Complete report in detailed: https://www.wiseguyreports.com/reports/global-piezoelectric-smart-materials-market2016-2020

Global Vibration Sensor Market is Expected to Exceed USD 33 Billion by 2020

Technavio analysts forecast the global vibration sensor market to post a CAGR of over 6% during the forecast period. In order to calculate the market size, Technavio considers revenue generated from the sales of vibration sensors in the following application segments: aerospace, automotive, industrial machinery, healthcare, and consumer electronics.

The four major factors responsible for the growth of global vibration sensor market are as follows:

1. Stringent road safety regulations
2. Rising need for machine monitoring
3. High demand for effective maintenance
4. Slow replacement cycle of old machines

Read full article: http://www.businesswire.com/news/home/20160201005500/en/Technavio-Expects-Global-Vibration-Sensor-Market-Exceed 

Contact-Free Monitoring - Enabling Technologies & Emerging Opportunities (Technical Insights) : Monitoring every moment without physical presence

Contact-free monitoring (CFM), an emerging technology domain is likely to impact applications related to automation, digitalization and smart devices. This technology aids in monitoring and detecting motion of a moving object or human activity. CFM employs advanced sensors to monitor properties such as temperature, vibration, speed, phase, velocity and direction of the object. CFM introduces new dimensions to healthcare market by effectively measuring patient movements, pulse rate, heartbeat, sleep timing and many other vital parameters. The report captures advanced sensor technologies used for contact-free monitoring such as Micro Doppler sensor, Thermography sensor, Micro Wave sensor and Fiber Bragg Grating. The main application of contact-free monitoring is automation; however the technology finds use in many new sectors such as Health Care, Industrial Process Control, Automotive & transportation and Aerospace & Defense. Smart cities, smart house, Internet of Things also enable faster adaption of contact-free monitoring. The research service focusses on covering emerging opportunities of contact-free monitoring. The modules of the report include: technology significance, current trends, applications landscape, enabling technology and emerging opportunity assessment.

Key Findings – Enabling Technology and Application Impact

Sensors play a key role in facilitating adoption

Sensor technology has advanced to an extent that it now plays a vital role in many application segments such as Health care, Aerospace, defence, Automotive and transportation. Sensor technologies are used for monitoring, tracking and detecting purpose, thereby helping us analysing object and activities. 

-Contact-free monitoring is an enterprise system that embeds multiple applications to monitor and provide solutions without touching the object or humans. 

Contact-free monitoring finds potential use in health care applications where there is a need for continuous and real-time monitoring of patients. This improves the quality and accuracy of the treatment. Moreover, Contact-free monitoring is enabled by wireless communication, touch-free technology, advanced sensors, and smart devices.

Application Impact

The impact of contact free monitoring in applications areas such as healthcare and security industry is immense and is expected to delivers numerous benefits to the users. 

-Applications which are majorly impacted in the healthcare industry include monitoring patient activity in hospital beds, analysing their’ physical conditions and their response to medical treatment. 

-Future applications of contact-free monitoring in this industry would include analyzing, monitoring, and recording details about the specific body functions such as, functioning of heart, blood profile, pulse, brain activity, kidney, and liver.

-Contact-free monitoring is expected to have a high influence in the security industry for applications such as tracking of speeding vehicles, detecting driver information from vehicles, remote monitoring of vehicles, monitoring cargo movement, and remote tracking of illicit cargo activity.

Read the full report: http://www.reportlinker.com/p03551346-summary/view-report.html

India to develop its FIRST anti-tank mine

Instead of procuring from US or Israel, country's defense forces will soon be self-reliant with the first indigenous off-route or anti-tank mines. These are improvised explosive devices (IEDs), which explode like a projectile while camouflaged and placed on a tripod stand.

The mine, unlike conventional mines, is not buried underground and needs no pressure when placed underneath a vehicle for activation. To be developed by the Terminal Ballistic Research Laboratory (TBRL), a Defense Research and Development Organization (DRDO) laboratory in Chandigarh, and the Central Scientific Instruments Organisation (CSIO), the mine is used in surfaces where underground burial is not possible. The project began six months ago and was reviewed by DRDO experts early this week. It is expected to be completed in another four years.

The incoming target combat vehicle shall be detected using seismic and acoustics sensors, which shall be made by the CSIO. The sensors fitted in these mines can detect seismic vibrations produced when vehicles such as tanks head towards ambush area. When acoustic and seismic sensors detect approach of a suitable target, the infra-red sensors (IR) in it are also activated. These IR sensors can send images of the target for attack. Consequently, after the target is confirmed, all these sensors trigger the warhead of the mine to project towards the target as it comes before it.

The TBRL plans to have a smart mine trap using these anti-tank mines. "Until the target does not approach, the off route mines can be kept on sleep mode, which can conserve the battery required for its operation," said Manjit Singh, director TBRL. He said, "We are working with CSIO on production of special seismic sensors, which can detect the potential target approaching us and also give a wake-up call to the operator as soon as the target approaches."

The anti-tank mine is portable and suitable for both offensive and defensive operations. The range of the off-route mine is 2 to 97 meters. The collaborators are working towards enhancing the range. The CSIO already has special sensors, being used in Delhi metro, to provide advanced earthquake warning system. "These sensors shall be improvised and worked upon for defense application," said CSIO director R K Sinha.

How it works

• The off-route mine is placed in the range 2-97 m from the target on a tripod stand
• It does not require any pressure of a vehicle for explosion
• These mines cannot be detected easily
• Its acoustic vibration (seismic) and infra-red sensors are triggered when a combat vehicle nears the trap, the mine is activated and shoots off a projectile.

Read the full article: http://timesofindia.indiatimes.com/city/chandigarh/India-to-develop-its-first-anti-tank-mine/articleshow/50214894.cms

Techno-advanced lifestyle of smart city: Chicago

Chicago's IQ will be measured by Sensors now...!

The University of Chicago (UChicago) announced that the National Science Foundation has awarded a $3.1 million grant to support the development of Array of Things, an urban sensing instrument that will serve as a fitness tracker for the city. Starting next year, 500 Array of Things (AoT) nodes will measure data on Chicago’s environment, infrastructure and activity to scientifically investigate solutions to urban challenges ranging from air quality to urban flooding. The ultimate goal of this innovative community technology platform is to help make cities cleaner, healthier and more livable.

The grant will support a multidisciplinary team of designers, engineers and scientists at the Computation Institute (a joint initiative of UChicago and Argonne National Laboratory), the School of the Art Institute of Chicago, Northern Illinois University and the University of Illinois at Urbana-Champaign.The Array of Things (AoT) is an urban sensing project, a network of interactive, modular sensor boxes that will be installed around Chicago to collect real-time data on the city’s environment, infrastructure, and activity for research and public use. AoT will essentially serve as a “fitness tracker” for the city, measuring factors that impact livability in Chicago such as climate, air quality and noise.

The nodes will initially measure temperature, barometric pressure, light, vibration, carbon monoxide, nitrogen dioxide, sulfur dioxide, ozone, ambient sound intensity, pedestrian and vehicle traffic, and surface temperature. Continued research and development will help create sensors to monitor other urban factors of interest such as flooding and standing water, precipitation, wind, and pollutants.

Array of Things is interested in monitoring the city’s environment and activity, not individuals. In fact, the technology and policy have been designed to specifically avoid any potential collection of data about individuals, so privacy protection is built into the design of the sensors and into the operating policies. Array of Things will not collect any personal or private information.

The nodes utilize an Argonne-developed technology platform called Waggle, created by Argonne’s Peter Beckman, Rajesh Sankaran and Catlett, that allows for powerful and secure remote processing of measurements before transmission of data to a central server.

Because all of the data will be published openly and without charge, it will also support the development of innovative applications, such as a mobile application that allows a resident to track their exposure to certain air contaminants, or to navigate through the city based on avoiding urban heat islands, poor air quality, or excessive noise and congestion.

In partnership with the City of Chicago, the nodes will be mounted on streetlight traffic signal poles around the city by 2017. Fifty nodes will be installed in early 2016, and the number is expected grow to 200 by the end of 2016 and 500 by the end of 2017. The location of these nodes will be determined in collaboration with the City of Chicago and input from researchers and community members.

Eleven nodes are currently undergoing testing on the University of Chicago campus. Additional funding for the project was provided by the University of Chicago Innovation Fund, Argonne, and the John D. and Catherine T. MacArthur Foundation.

What Is The Array of Things? 

US Air Force to use vibration sensors to detect vehicles in anti-access and denied areas.

Air Force Research Laboratory at Wright-Patterson Air Force Base, Ohio, announced an

upcoming program this week for Vibrometry Interrogation for Battlefield Exploitation
(VIBE). The objective of VIBE is to develop combat identification (CID) automatic
target recognition (ATR) for vibrometry sensor data for use within anti-access/area
denial (A2/AD) environments.

Vibrometry sensors utilize the principal of micro-Doppler measurements between the
sensor and target caused by surface deflections. These deflections are due to vibrations mainly caused by mechanical systems (motors) or transformer hum (magnetostriction) during operation of military and civilian vehicles and equipment. These measurements enhance air-to-ground (A/G) and air-to-air (A/A) remote identification of targets. The
addition of vibration measurement to the sensor suite provides an additional non-imagery based identification modality at ranges where traditional electro-optical imaging is resolution limited. The vibrometry modality also provides unique capabilities in settings where a vibration signature is available such as facility interrogation, power plant assessment, obscured targets, and Battle Damage Assessment (BDA).

One of the VIBE program's key challenges will be to extracting features from vibrometry
signatures that remain consistent, and filter out irrelevant noise. For this project
Air Force researchers are not interested in any proprietary hardware, software, or
data solutions. Instead, the program will focus on basic algorithm development.
Program funding will be about $15 million from 2016 to 2022, researchers say.

For more information please follow the link: https://www.fbo.gov/index?s=opportunity&mode=form&id=2cd88d2c41b98042ff665877a11dfc96&tab=core&_cview=0

Vibration technology based security system has been proposed by NIT-K to secure unmanned level crossings.

Recently, an MoU has been signed between Palakkad division - Southern Railway and ECE department, National Institute of Technology Karnataka, Surathkal on a system to provide advance warning at unmanned level crossings.

NIT department focused on vibration technology  and detailed the approach stating that motion of train generating vibration will be used in this system development where a sensitive vibration sensor/acoustic sensor will be installed on the track or sleeper near the level crossing which be constantly monitored for its output.  Further, the output of the vibration sensor will be monitored by the micro-controller device which will process the readings and infer the presence of the train, its type and velocity. 

This simple system that can detect the presence of the train after sensing the unambiguous presence of the train and can provide an audio-visual warning so that people, vehicles, people and livestock can move away from the location of the level crossing. The system will reset itself for next train detection.  

Read the full article: http://timesofindia.indiatimes.com/home/education/news/NIT-K-Surathkal-students-to-secure-unmanned-level-crossings/articleshow/49438115.cms 

Industrial Triaxial Vibration Sensors

Industrial, triaxial vibration sensors use piezoceramic in the annular shear mode, have dual case isolation with an internal Faraday shield, use ®ICP / ®IEPE transmission mode.

Compared to obsolete compression design, annular shear piezoelectric sensors feature better frequency response, improved base strain, lower noise, smaller size, thermal transient immunity and insensitivity to cable motion. Annular shear mode is also less susceptible to transverse vibrations and better immune to electronic saturation at high frequency.

Why industrial triaxial vibration sensors are bigger than laboratory ones?

Triaxial industrial sensors require dual case isolation provided by an internal Faraday shield. Laboratory triaxial sensors are only isolated (if at all) by an external isolation pad on the mounting surface or by an anodised aluminum housing. They are therefore prone to ground loop and 50 Hz or 60 Hz pickup. In harsh environments, industrial vibration sensors don’t allow for such solutions.

Want to check options and accessories available in your region. Please visit   

What is Termination box and BNC Termination box?

Termination boxes and switch Boxes assist with data collection by terminating cables of permanently installed sensors at convenient, safe collection points.

BNC termination boxes are not switched, but provide a separate BNC connection for each channel.
Switch boxes have a single BNC connector for data collection and 11 channel rotary dial for channel selection.

To explore whole range in your own area explore our e-MNC     

Vibration Sensors Market (2014-2020); By Application (Automotive, Electronics and Electrical, Industrial); By Type (Geophone, Shock Sensors); By Technology (Ceramic Piezoelectric, Proximity Probe) and By Geography

A new report has been added by research and markets which has been briefed as follows: 

Vibrations are created when a particle or a vibrating part moves from one extreme point to other which is separated by few microns. Also, the speed of this movement is fast as mm/s. Vibrations are generated in case of any faults, when some internal or external excitation is experienced. Sensing them at earlier stage can prevent danger and thus is essential.

This report segments the vibration sensors according to its type and technology used. The market forces for vibration sensors market are explained in detail. Also, region wise market estimations are illustrated for the forecast period from 2015 to 2020. The electrical and electronics, medical, industrial sector make major use of the vibrational sensors. They have their applications in wide areas as measuring vibrations in wind generators, monitor machinery sensitive to vibrations or shocks, reduce wear in industrial plants, record input shocks and vibrations given to humans for treatment, monitoring of breathing, walking and lying behavior of animals and many more.

Omron, Vibrasens, Murata Manufacturing Co., Ltd., GE Measurement & Control are some companies that participate with other key players.

For more details please visit: http://www.researchandmarkets.com/research/w9hrn5/vibration_sensors

Sensor Selection Checklist

Vibration sensors are the initial source of machinery information upon which productivity, product quality and personnel safety decisions are based. When selecting a piezoelectric industrial vibration sensor (acceleration, velocity, or displacement) for a specific predictive maintenance application, many factors should be considered so that the best sensor is chosen for the application. The user who can answer application specific questions will be able to find the best vibration monitoring solution.

What to measure: acceleration, velocity or displacement?
Very obvious question but many points to keep in mind.Which signal variety is required for your application? Some industrial sensors can output temperature along with vibration.

Do you need a top exit, side exit or a low profile connection?
Sensor geometry has little effect on its performance, but consider factors such as space available and where a maintenance engineer can operate safely.

What type of mounting is needed?
There are a number of ways to mount an accelerometer to the unit under test (UUT), and methods include everything from permanent mounting to temporary methods. Here are a few of the most common mounting methods.

  

 


The best mounting method uses a threaded stud or screw. Stud/screw mounting provides the best transmissibility at high frequencies since the accelerometer is virtually fused to the mounting surface. High-frequency response can be enhanced by the application of light oil between the accelerometer and the UUT. If this method of mounting is desired, accelerometers should be purchased that are designed for stud and/or screw mounting.

Adhesive mounting is often required, especially on small surfaces and PC boards. The preferred mounting adhesive is a cyanoacrylate because it can be easily removed (with the proper removal techniques). Many accelerometers are specifically designed for adhesive mounting and this fact will be noted on the data sheet. A stud-mount accelerometer may be mounted using an adhesive, but a cementing stud should be used to prevent the adhesive from damaging the accelerometer’s threads.

Does your application require uniaxial, biaxial or triaxial measurement?
Some applications monitored in more than one vibration axis. Depending upon the requirement one can choose vibration sensors for multi-directional machine monitoring and balancing. Theses sensors are also easier to mount than two/three individual sensors.

What is the vibration amplitude?
The maximum amplitude or range of the vibration being measured determines the sensor range that can be used. Typical accelerometers sensitivities are 100 mV/g for a standard application (50 g range) and 500 mV/g for a low-frequency or low-amplitude application (10 g range). General industrial applications with 4-20 mA transmitters commonly use a range of 0-1 in/s or 0-2 in/s.

What is the frequency range?
Physical structures and dynamic systems respond differently to varying excitation frequencies. A vibration sensor is exactly same. A sensor that acts as a dynamic system with one degree of freedom exhibits natural frequencies. It’s critical to select a sensor with a usable frequency range that includes every frequency you’re interested in measuring.

What is the temperature range required?
Applications with extremely high temperatures can pose a threat to the electronics built into accelerometers and 4-20 mA transmitters. Charge-mode accelerometers are available for use in very high temperature applications. The sensitivity variation versus temperature must be acceptable to the measurement requirement. Therefore, sensors with integral hard-line cable are available for applications hotter than 500° F.

Are any corrosive chemicals present?
Sensors and cables should be resistant to chemicals present, if any.

Is the atmosphere combustible?
Vibration sensors certified as being Intrinsically Safe should be used in areas subjected to hazardous concentrations of flammable gas, vapor, mist, or combustible dust in suspension.

Are intense acoustic or electromagnetic fields present?

Is there significant electrostatic discharge (ESD) present in the area?
ESD can be destructive and may leave a sytem in an unknown state from which recovery is impossible.

Is the machinery grounded?
To avoid spurious 50Hz pick-up from surrounding equipment it is advisable for the cases of the sensors.

Will it be submersed in liquid?
Industrial accelerometers with integral polyurethane cable are completely submersible in liquid for permanent installation.

Are there sensor size and weight constraints?
Sensosr size should be decided as per space available. As a rule-of-thumb, the weight of the accelerometer should be no greater than 10% of the weight of the test article.

Other questions must be answered about the connector, cable, and associated electronics:

• What cable lengths are required?
• Is armored cable required?
• To what temperatures will the cable be exposed?
• Does the sensor require a splash-proof connector?
• What other instrumentation will be used?
• What are the power supply requirements?

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VibraSens went Online....!

Are you still enjoying old traditional way of shopping, long billing ques and all?

Nobody gonna say "YES" in today's world. After, understanding the fact VibraSens too moved online. Now you can select and order all their sensors directly from their webshops. To add to it, you have freedom to select local webshop or preferred currency from US, Europe and Asia or USD, EUR, or CNY, respectively.

Hurry! enjoy e-shopping and keep clicking. 

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IEPE Standards and Compatibility

IEPE standard for electronic accelerometers ensures compatibility with equipment of other manufacturers. The abbreviation IEPE means “Integrated Electronics Piezo Electric”. Integrated electronic piezoelectric (IEPE) accelerometers are a class of piezoelectric accelerometers that usually incorporate an electronic amplifier and use a single two-pole coaxial connector  for both power input and signal output. The devices are also known by proprietary names such as integrated circuit piezoelectric sensor (ICP®) , CCLD, Isotron®, Deltatron®, Piezotron®  etc.

Compared with earlier sensor interface systems requiring a charge-sensitive preamplifier external to the sensor, the use of a single coaxial connector with integrated electronics gives IEPE devices their main advantages: small size, light weight, robustness and low cabling costs. Microphones and other vibration sensors are also made using an IEPE-compatible interface.

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