工程科学学报2017，Vol.39Issue(8)：1232-1237,6.DOI:10.13374/j.issn2095-9389.2017.08.013
考虑磁滞的铁稼磁致伸缩位移传感器输出电压模型及结构设计
Output voltage model of Fe--Ga magnetostrictive displacement sensor considering hys-teresis and structural design
摘要
Abstract
The output voltage computation model of a magnetostrictive displacement sensor was established considering the influ-ence of the hysteresis effect based on the Jiles- Atherton hysteretic model, Wiedemann effect, and piezomagnetic effect. The consisten-cy between the calculated data and experimental data shows the correctness of the output voltage model. The structure of the traditional Fe- Ga magnetostrictive displacement sensor was improved, eliminating displacement measurement hysteresis caused by the hysteresis effect of the magnetostrictive material, thereby reducing the influence of the residual magnetization and the driving pulse current on the output voltage so that the voltage signal-to-noise ratio increased from 14. 7 to 27. 6 dB. A type of Fe- Ca magnetostrictive displacement sensor was fabricated. The experiments show that the new structure can improve the linearity, repeatability, hysteresis, and precision of the magnetostrictive displacement sensor. Based on this new sensor structure, the research provides a theoretical and experimental basis for optimization and manufacture of magnetostrictive displacement sensors.关键词
位移传感器/磁致伸缩/磁滞效应/结构/位移迟滞Key words
displacement sensor/magnetostrictive/hysteresis effect/structure/displacement hysteresis分类
信息技术与安全科学引用本文复制引用
谢新良,王博文,张露予,李佳泽..考虑磁滞的铁稼磁致伸缩位移传感器输出电压模型及结构设计[J].工程科学学报,2017,39(8):1232-1237,6.基金项目
国家自然科学基金资助项目(51171057) （51171057）
