光学精密工程2017，Vol.25Issue(4)：928-933,6.DOI:10.3788/OPE.20172504.0928
磁致伸缩压力传感器设计及其输出特性
Design of magnetostrictive pressure sensor and its output characteristics
摘要
Abstract
Magnetostrictive characteristics of Galfenol were researched and a new type of magnetostrictive pressure sensor based on the Galfenol was proposed to implement the accurate perception of tactile sensation for robots.The sensor converts a pressure signal into a voltage signal based on magnetostrictive inverse effect to implement the accurate measurement of the pressure.The magnetostrictive pressure sensor was designed and fabricated, and the magnetic field of pressure sensor was optimized by a magnetic circuit of double permanent magnets.Then, the sensor was analyzed theoretically and investigated experimentally, and the influences of bias condition, external pressure and other factors on the peak value of output voltage were discussed.The results show that when bias magnetic field is 4.8 kA/m and applied pressure is 2.5 Hz and 6 N, the peak value of output voltage reaches 16 mV and the peak value of output voltage has better linear relation with the pressure.The developed sensor is characteristics by simple structure, good linearity, and a quick response speed.It meets the requirements of tactile sensation of robots and is suitable for the pressure measurement in other fields.关键词
压力传感器/触觉感知/铁镓合金/磁致伸缩逆效应Key words
pressure sensor/tactile sensation/Galfenol/magnetostrictive inverse effect分类
信息技术与安全科学引用本文复制引用
王博文,王启龙,韩建晖,万丽丽,曹淑瑛,王宁,刘华平..磁致伸缩压力传感器设计及其输出特性[J].光学精密工程,2017,25(4):928-933,6.基金项目
国家自然科学基金资助项目(No.51171057) （No.51171057）
河北省自然科学基金资助项目(No.E2016202034) （No.E2016202034）
河北省高等学校科学技术研究重点项目(No.ZD2016004) （No.ZD2016004）
