A Signal Conditioning Preposing Circuit for Portable Wheel Load Measure Plate

Abstract:

Portable wheel loads measure plate is force sensor based on strain measure and it can bear multidimensional force simultaneously. It is able to recognize radial wheel load through decoupling. Signal conditioning of the sensor will affect the measure accuracy. There are many strain-gauges in the plate. So the signal of measure plate will include CM noise, thermal noise and high shift. The signal conditioning aimed at these disadvantages should be high gain, high accuracy, low noise, low shift, high CMRR. Multisim is adopted to analyze the signal conditioning including strain measure amplifying circuit, instrumentation amplifier AD620, operational amplifier OP07. It is turned out to be low linear distortion and is able to satisfy practical application through the experiment.

• Periodical: Applied Mechanics and Materials (Volume 274)
• Pages: 95-98
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.274.95
• Online since: January 2013
• Authors: Xin Tong Zhao, Xiao Dong Lu, Wen Sheng Lu, Cheng Jun Jin, Xi Jun Zhang, Guo Dong Zhang
• Keywords: Amplifier, MULTISIM, Signal Conditioning, Strain Measure

References

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