摘要
为研究微机电系统(MEMS)开关的失效机理,设计了一种以压电陶瓷电动机为核心的新型超低速致动形式的触点材料电接触行为测试分析系统。应用该系统对典型触头材料在闭合和分断过程中的接触力特性、滞回特性、接触电压特性和电弧特性进行了初步观测和物理解释。
Surface hardness, contact resistance, adhesion force and electric arc energy are all important parameters that can represent the electrical contact behavior of contact materials used in electrical apparatus. In order .to investigate the failure mechanism of MEMS switch, a new test equipment for measuring electrical contact behaviors of contact materials with super slow velocity by introducing piezo motor was designed. The contact force characteristics ,hysteretic characteristics, contact voltage characteristics and arc characteristics of typical contact materials under loading and unloading process were observed and discussed.
出处
《电器与能效管理技术》
2014年第19期38-42,共5页
Electrical & Energy Management Technology
基金
国家自然科学基金项目(51007010
51377029)
关键词
电接触
触头材料
接触电压
金属液桥
粘接力
electrical contact
contact materials
contact voltage
metal bridge
adhesion force
