ZHU Ge, LUO Jing, GUO Zeng-qiang, et al. Design of signal conditioning circuit for three-phase grating type displacement sensor based on MEMS[J]. 2012, 31(1): 94-96.
ZHU Ge, LUO Jing, GUO Zeng-qiang, et al. Design of signal conditioning circuit for three-phase grating type displacement sensor based on MEMS[J]. 2012, 31(1): 94-96. DOI: 10.13873/j.1000-97872012.01.034.
Signal conditioning circuit of MEMS-based three-phase grating type displacement sensor is designed based on its measuring principle and output signal.The conditioning circuit consists of differential pre-amplifier
band-pass fountainhead filter and waveform converting circuit.In order to improve the detection sensitivity and signal noise ration
the non-linear amplification is used in design of waveform converting circuit.Reading stability of the measurement system of displacement can be as good as 1″
that means the conditioning circuit has a good stability to meet the needs of measurement.