FENG Jia, LI Pei-yue, YIN Zhi-sheng, et al. Structure design and optimization of single-plate capacitive sensor for micro displacement measuring[J]. 2014, 33(7): 63-66.
FENG Jia, LI Pei-yue, YIN Zhi-sheng, et al. Structure design and optimization of single-plate capacitive sensor for micro displacement measuring[J]. 2014, 33(7): 63-66. DOI: 10.13873/j.1000-97872014.07.035.
According to problem of structure optimal design of single-plate capacitive sensor for micro displacement measuring
a parametric modeling method for electromagnetic field simulation based on vertical and horizontal propulsion means is presented.First
on the basis of establishing reasonable electromagnetism simulation parameter model for single-plate capacitive sensor
through simulation experiment chooses optimal value for guard ring and the gap for insulating layer.Then according to optimal value obtaine by simulation experiment
comparing to the actual capacitive sensor of structure approximation to optimal value
achieve good results
error of simulation results and actual measurement capacitance value is less than 0.3 %.Finally
influence of tilt plate of capacitive sensor on measuring result is studied
when the tilt angle is 2°
error of measurement value is 1.6 %.Structure optimal result for capacitive sensor meet for practical engineering requirement.
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