传感技术学报2026，Vol.39Issue(7)：1431-1440,10.DOI:10.3969/j.issn.1004-1699.2026.07.003
基于气隙磁场耦合的平面二维位移传感器研究
Research on Planar Two-Dimensional Displacement Sensor Based on Air-Gap Magnetic Coupling
摘要
Abstract
Targeting at the problem that the output induced signal of the planar two-dimensional time-gating displacement sensor with single layer coupling is small,a design scheme of the planar two-dimensional time-gating displacement sensor with double layer coupling is proposed.The generation mechanism of sensor induced signal is derived.Through electromagnetic field simulation analysis,under the same conditions,the amplitude of double-layer coupling in x direction and y direction is increased by about 40%and 37.5%respectively,and the signal-to-noise ratio is enhanced.The optimum air gap spacing is determined to be 0.3 mm,the sensor prototype of 200 mm×200 mm is manufactured by printed circuit board(PCB)technology,and the accuracy is tested.The experimental results show that the error in x direction and y direction is 53.020 μm and 41.920 μm respectively in the measuring range of 200 mm×200 mm.The quadratic error of double-layer coupled structure is reduced from 1.212 μm to 0.798 μm,compared with that of single-layer coupled structure.The four times error is reduced from 7.291 μm to 6.557 μm,which improves the measurement accuracy and verifies the validity of the structure.关键词
气隙磁场耦合/二维位移测量/双层耦合/PCBKey words
air-gap magnetic field coupling/two-dimensional displacement measurement/double-layer coupling/PCB分类
信息技术与安全科学引用本文复制引用
杨继森,张显豪,张天恒,易靖松,张兴红..基于气隙磁场耦合的平面二维位移传感器研究[J].传感技术学报,2026,39(7):1431-1440,10.基金项目
国家自然科学基金项目(52175454) （52175454）
重庆市自然科学基金面上项目(CSTB2023NSCQ-MSX0382) （CSTB2023NSCQ-MSX0382）
重庆市教委科学技术研究计划重点项目(KJZD-K202301106) （KJZD-K202301106）
