28 October 2006 The distributed surface acoustic wave strain sensing system based on FPGA
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Abstract
The distributed surface acoustic wave (SAW) strain sensing system based on FPGA was presented in this paper. Equal strength beam SAW strain sensor was adopted. Through special device sealing, it not only protected the surface electrode but also did not influence the sensitivity of the sensor. Equal precision frequency meter based on FPGA realized the frequency measurement of measuring signal. Equal precision frequency meter had high measuring precision. It can keep constant measuring precision during the whole frequency domain. Measuring frequency ranged from 0.1 to 100MHz. Relative error was 1 ppm.
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Dandan Zhu, Zhiquan Li, Yan Li, Yaping Li, Zhongchao Li, "The distributed surface acoustic wave strain sensing system based on FPGA", Proc. SPIE 6358, Sixth International Symposium on Instrumentation and Control Technology: Sensors, Automatic Measurement, Control, and Computer Simulation, 635802 (28 October 2006); doi: 10.1117/12.717480; https://doi.org/10.1117/12.717480
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