计量学报2024，Vol.45Issue(6)：915-921,7.DOI:10.3969/j.issn.1000-1158.2024.06.18
同面阵列电容传感器输出信号质量评估研究
Co-planar Array Capacitive Sensor Output Signal Quality Evaluation
摘要
Abstract
The output signal quality of a 12-electrode co-planar capacitive sensor(CCS)for each electrode pair was systematically evaluated by finite element simulations and experiments.The results showed that the output signal quality of the electrode pairs was mainly related to the electrode spacing and the contact edge length.Reducing the electrode spacing and increasing the contact edge length are beneficial for improving the output signal quality.An electrode utilization rate(EUR)method was proposed to evaluate the output signal quality of CCS.The output signal quality of CCS with different number of independent electrodes was evaluated by combining EUR.According to the findings,adding more independent electrodes barely improved the useful output information and generated a significant amount of noise.The EUR value declines as the number of independent electrodes rises,which implies that adding more independent electrodes lowers the output signal's quality.The outcomes of the image reconstruction were in agreement with the results of the EUR analysis.The effectiveness of EUR for evaluating the output signal quality of multi-electrode CCS was verified experimentally and in simulation.The methods and conclusions may provide a reference for CCS array electrode design and output signal processing.关键词
电容层析成像/同面阵列电容检测/同面电容传感器/信号质量评估/电极利用率Key words
electrical capacitance tomography/co-planar array capacitance testing/co-planar capacitance sensor/signal quality evaluation/electrode utilization rate分类
通用工业技术引用本文复制引用
李瑞航,张玉燕,温银堂,潘钊,李泓漾..同面阵列电容传感器输出信号质量评估研究[J].计量学报,2024,45(6):915-921,7.基金项目
河北省自然科学基金(F2021203024) （F2021203024）
河北省科技计划项目(216Z1704G) （216Z1704G）
