传感技术学报2026，Vol.39Issue(8)：1728-1735,8.DOI:10.3969/j.issn.1004-1699.2026.08.007
基于无磁芯方形耦合线圈组和磁阻芯片的电压测量传感器研究
Research on Voltage Measurement Sensor Based on Coreless Square Coupled Coil Group and Reluctance Chip
摘要
Abstract
A magnetic isolation AC/DC voltage sensor is proposed,which is based on a 4-chip structure of a square coupled coil group without magnetic cores,through simulation of the magnetic field distribution of the square coupled coil group without magnetic cores.While expanding the measurement bandwidth,precise measurement under low current input is achieved.In response to the problem of poor magnetic focusing ability of non magnetic core coil groups and high sensitivity of the chip,which causes sensors to be more sensitive to external interference magnetic fields,a sensor structure combining differential chip groups with differential magnetic fields is proposed,effectively suppressing external magnetic field interference and common mode interference.A prototype is made for experiments,and the experimental results show that the developed magnetic isolation voltage sensor has a measurement bandwidth greater than 25 kHz and an accuracy of 0.42%under low power loss conditions(input current I≤5 mA).关键词
电压传感器/耦合磁场/磁隔离/差分式/低功耗/频带Key words
voltage sensor/coupling magnetic field/magnetic isolation/differential/low power consumption/frequency band分类
信息技术与安全科学引用本文复制引用
王治力,张文斌,朱俊昌,王德忠..基于无磁芯方形耦合线圈组和磁阻芯片的电压测量传感器研究[J].传感技术学报,2026,39(8):1728-1735,8.基金项目
贵州电网有限责任公司贵安供电局科技项目(GZKJXM20240618) （GZKJXM20240618）
