基于自适应滤波法的静电传感器转速测量  

Rotational speed measurement using an electrostatic sensor and based on a electrostatic signals processing method of adaptive filter

作　　者：唐凯豪 胡红利[1] 李林[1] 李思瑶[1] 张肖[1,2] 

机构地区：[1]西安交通大学电力设备电气绝缘国家重点实验室,陕西西安710049 [2]西安市产品质量监督检验院线缆室,陕西西安710065

出　　处：《西北大学学报（自然科学版）》2016年第4期497-500,506,共5页Journal of Northwest University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51177120);西安交通大学电力设备电气绝缘国家重点实验室主任基金资助项目(EIPE14132);陕西省工业科技攻关计划基金资助项目(2016GY-001)

摘　　要：为解决使用静电传感器进行信号自(互)相关转速测量中,因信号干扰大导致相关法时延计算易出错的问题,采用自适应滤波算法对相邻传感器的时延信息进行提取,从而达到测速的目的。实验结果表明,该方法能有效得出测速结果,并对叠加了强噪声的静电信号也有良好的表现。对异步电机转轴进行测试,转速测量的线性度达到1.29%,具备一定的应用价值。Rotational speed measurement using an electrostatic sensor and signals correlation is a novel method put forward recently, but speed calculation fails sometime due to strong noise added in signals. In this research, a signals processing method of adaptive filter is discussed and used to extract the time-lag between an adjacent pair of signals in order to calculate the rotational speed. The result of the experiment carried out indicated that the method mentioned above had a reliable performance in term of accuracy even when handling signals with heavy noise component; linearity of the measurement tested on a laboratory-scale test rig is 1.29%, which has a possibility of putting into industries.

关 键 词：自适应滤波 静电传感器 转速测量 降噪 

分 类 号：TH824.1[机械工程—仪器科学与技术] TP274.5[机械工程—精密仪器及机械]