PZT Based Ultrasonic Wave Force Detecting Sensor

Abstract:

In the sensor system, the wave in the optical fibers conductivity will change when the surrounding medium is changed. Thus, minor changes according to the mechanical wave, optical fiber can be used to monitor changes in the surrounding environment. The working principle of the sensor system is the signal generator output signal transmitted to a piezoelectric ceramic. Because of the inverse piezoelectric effect of piezoelectric ceramics, conduction of the electrical signals can be converted to mechanical signals. The resulting mechanical wave transmitted to the other end of the piezoelectric ceramic by the optical fiber, and converted to an electrical signal. The proposed system consists of signal generator, a piezoelectric ceramic, fiber optics, oscilloscope. For investigation the performance of the sensor system the external point loading was applied. Results show that the sensor system can be successfully applied to the sensing the force value.

• Periodical: Applied Mechanics and Materials (Volumes 511-512)
• Pages: 142-145
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.511-512.142
• Online since: February 2014
• Authors: Yan Wei Ming, Tai Hong Cheng*, Ke Huang, Bi Li
• Keywords: Optical Fiber, Piezoelectric Ceramic (PZT), Ultrasonic Sensor

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