期刊首页 优先出版 当期阅读 过刊浏览 作者中心 关于期刊 English

2006年 第1卷 第4期

摘要

关键词

相关研究

回顶部

《机械工程前沿（英文）》 >> 2006年 第1卷 第4期 doi: 10.1007/s11465-006-0054-7

Theoretical analysis of novel weak current sensor using FeCuNbSiB single nanocrystalline toroidal core and double-winding

Department of Measurement and Control, School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China;

发布日期： 2006-12-05
HTML18 PDF 0 收藏 0

下一篇 上一篇

摘要

An FeCuNbSiB nanocrystalline toroidal core made by isothermal furnace annealing shows good thermal stability of magnetic properties and excellent soft magnetic properties due to the full release of the internal stresses of the core during the annealing process. Based on the feature of the magnetic core, a novel non-contact type weak current sensor adopting single nanocrystalline core and double-winding excited by multivibrator bridge is proposed. The measuring principles for static current are given in theory by an established mathematical model of the sensor. The theory is in good agreement with the experimental results and it indicated clearly the key factors affecting performance parameters for the sensor. The multivibrator bridge output signal was analyzed by Fourier transform. Furthermore, according to the theoretical results, the method to design the signal conditioning circuit was introduced.

相关研究