Acoustic wave sensor uses piezoelectric material to generate the acoustic wave. The changes to the features of the propagation path may affect the amplitude and velocity of the wave because of the acoustic wave generated on the surface of the material. The Acoustic wave sensor market is applied in various industry such as automobile, industrial, defense, healthcare, and consumer electronics. Automobile segment is anticipated to show sustainable growth due to increasing application such as torque measurement, tire pressure monitoring, and emission control. In industrial and environmental segment acoustic sensors are used for combustion emission monitoring, work place monitoring and water quality management. Healthcare application include point of care diagnostics and drug discovery & development. Defense applications include chemical agent detectors and bio agent detector among others. Pressure and temperature variants are increasingly being deployed in industrial and automobile segment.
Acoustic wave sensors provide competitive advantage over conventional sensors due to features such as passive operation, lesser response time, and wireless. The surface acoustic wave based temperature sensors with higher response rate, accuracy, low cost, and range of wide sensing temperature is the key driving factor for acoustic wave sensor market. Higher sensitivity, outstanding stability, rugged compact structure, extremely small size and low cost is expected to boost the market growth during the forecast period. However, the compressional waves can cause an excessive attenuation of the surface when contacted by a liquid which makes them weak and the replacement of surface acoustic wave based sensors by other sensors in conventional applications may leads to fall in the market growth. Even though pressure temperature, torque and viscosity products have reached complete commercialization, more new application in future may drive the acoustic wave sensor market.
The acoustic wave sensor market is segmented on the basis of type, sensing parameters, and geography. On the basis of type, the market is segmented into surface acoustic wave sensor and bulk acoustic wave. Surface acoustic wave sensor is a part microelectromechanical, to sense a physical phenomenon it is based on the attenuation of surface acoustic waves. This sensor converts an electrical signal into a mechanical wave and then it again converts into an electrical signal. The surface acoustic wave sensor are passive elements they do not need power supply and can be accessed wirelessly. They have outstanding stability, rugged compact structure, extremely small size and low cost.
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On the basis of sensing parameters, the market is segmented into temperature, pressure, humidity, mass, torque, and viscosity. Temperature sensors based on surface acoustic wave possess better linearity, low hysteresis and millidegree resolution. The temperature sensors have the additional advantage of requiring no power and of being wireless. On the basis of region market is subdivided into North America, Asia-Pacific, Europe, South America, and Middle-East & Africa. The Asia-Pacific acoustic wave sensor market is currently riding a prosperous growth curve in terms of consumption of sensors. The acoustic wave sensor market in this region is largely driven by industrial applications followed by automotive industry.
Some of the major players in the acoustic wave sensor market are Vectron International, Qualtre Inc., SENseOR, Sensor Technology ltd., Nanotemper, Transense Technologies plc, Pro-micron GmbH & co. KG, H.Heinz Meßwiderstände GmbH, Hawk Measurment Systems, Siemens AG, DJB Instruments, and Defiant Technologies among others.
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