现代电子技术2015，Vol.38Issue(21)：136-138,141,4.DOI:10.16652/j.issn.1004-373x.2015.21.036
基于市电的退磁系统设计
Design of AC-based demagnetization system
荆亚 1付成伟 1李一鸣1
作者信息
- 1. 吉林大学 物理学院,吉林 长春 130012
- 折叠
摘要
Abstract
Electromagnetic fixture is the common technique equipment in ferromagnetic parts machining. Since the surface grinding of the large and miniature devices takes the workpiece fix and adsorb on the disk to machining,the residual magnetism of the workpiece after grinding is great,which makes the testing value tested by the instruments have a deviation,and affects on the machining quality of the products. A design of AC-based bearing demagnetization system is presented. This system is a cir-cuitry which covers of silicon controlled rectifier,single chip microcomputer,opto-coupler and amplifier. The zero-crossing sig-nal waveform is transformed by the amplifier,then the voltage zero crossing point of alternating current is acquired by single chip microcomputer,and the breakover and turn-off of the silicon controlled rectifier are controlled after opto-coupler isolation and voltage boost. The interactive attenuation change of the voltage was achieved,and the demagnetization effect of the devices was realized.关键词
STM32F103ZE/退磁/可控硅/光耦隔离Key words
STM32F103ZE/demagnetization/silicon controlled rectifier/opto-coupler isolation分类
信息技术与安全科学引用本文复制引用
荆亚,付成伟,李一鸣..基于市电的退磁系统设计[J].现代电子技术,2015,38(21):136-138,141,4.
