基于平面时变磁场的时栅角位移传感器  

Time grating angular displacement sensor based on plane time-varying magnetic field

作　　者：田青青 陈锡侯[1] 方畅 苟李 TIAN Qingqing;CHEN Xihou;FANG Chang;GOU Li(Engineering Research Center of Mechanical Testing Technology and Equipment,Ministry of Education,Chongqing University of Technology,Chongqing 400054,China)

机构地区：[1]重庆理工大学机械检测技术与装备教育部工程研究中心,重庆400054

出　　处：《传感器与微系统》2020年第4期52-55,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(51675071,51605062);重庆市科技研发基地能力提升计划资助项目(CSTC2014PT-SY40002)。

摘　　要：为了解决采用漆包线加工线圈的磁场式时栅存在的手工绕线均匀性差、加工效率低的难题,克服其测量精度易受时间影响的缺点,提出一种基于平面时变磁场的时栅角位移传感器。该传感器应用印刷电路板工艺技术在不同的平面内分别布置带电导体和感应线圈,通过在导体内添加激励,构成特定方向匀速移动的正弦分布时变磁场。基于测量模型,进行仿真分析与精度实验,验证了传感器模型的可行性。实验结果表明:传感器在0°~360°内传感器的原始误差在±80″以内,实现了精密测量。In order to solve the problems of poor uniformity of manual winding and low processing efficiency in magnetic time grating with enameled wire processing coil,and overcome the disadvantages of measurement precision is susceptible to time,a time grating angular displacement sensor based on planar time-varying magnetic field is proposed. The sensor uses printed circuit board technology to arrange charged conductors and induction coils in different planes. By adding excitation in the conductor,a sinusoidal time-varying magnetic field moving uniformly in a specific direction is formed. Based on the measurement model,simulation analysis and precision experiment are carried out to verify the feasibility of the sensor model. The experimental results show that the original error of the sensor is within ± 80″ from 0° to 360°,which realizes the precision measurement.

关 键 词：时栅角位移传感器 高精度 平面时变磁场 印刷电路板(PCB) 

分 类 号：TH711[机械工程—测试计量技术及仪器]