Improvement and Design of Single Coil Vibrating-Wire Sensor Signal Acquisition System Based on STM32

Suo Ying Mao; Jun Hua Zhao; Fang Fang Zhou

doi:10.4028/www.scientific.net/AMM.511-512.764

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 511-512Improvement and Design of Single Coil...

Improvement and Design of Single Coil Vibrating-Wire Sensor Signal Acquisition System Based on STM32

Abstract:

Vibrating wire sensor signal acquisition system is widely used in the fields of water conservancy dam, slope, construction, mining and so on to measure osmotic pressure, soil pressure, strain and other physical quantities. This paper studies the single coil vibrating wire sensor signal acquisition system,which uses the STM32F103 core processor generating a low-voltage feedback PWM signal to excite vibrating wire with scanning frequency, after signal amplification, filtering and signal normalization through the frequency measurement module, and ultimately achieve frequency measurement. The system can improve the traditional vibrating wire acquisition instrument, so as to achieve fast and efficient and reliable long-lasting measurement. According to some simulation and designed circuit, the measured data and diagram can verify the feasibility of the method.

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Periodical:

Applied Mechanics and Materials (Volumes 511-512)

Pages:

764-769

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.511-512.764

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Cite this paper

Online since:

February 2014

Authors:

Suo Ying Mao*, Jun Hua Zhao, Fang Fang Zhou

Keywords:

PWM, Scanning Frequency, STM32, Vibrating Wire Sensor

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