电触点材料接触电阻高精密测量技术

发布时间：2018-03-05 22:16

本文选题：电接触　切入点：触点材料　出处：《电工技术学报》2014年01期 　论文类型：期刊论文

【摘要】：电触点材料是影响电气与电子工程中电接触可靠性的关键。本文综合应用了激励电流断续斩波技术、低噪低漂移弱信号调理技术和滑动窗口平均滤波技术,设计并实现了接触电阻的高精密测量,进而应用0.01级标准电阻和M22等级标准砝码完成了测量系统的误差分析。最后以典型平面AgCdO复合触点材料完成了不同激励电流条件下接触电阻与接触压力间滞回特性的测试与分析,实验结果确定了接触压力和激励电流对接触电阻的影响规律。
[Abstract]:The electrical contact material is the key to affect the reliability of electrical contact in electrical and electronic engineering. In this paper, the technology of intermittent chopping of exciting current, low noise and low drift, weak signal conditioning and sliding window average filtering are used in this paper. The high precision measurement of contact resistance is designed and realized. The error analysis of the measurement system is completed by using the standard resistor of class 0.01 and the standard weight of grade M22. Finally, the hysteretic characteristic between contact resistance and contact pressure under different excitation current conditions is accomplished by using typical planar AgCdO composite contact material. Sex testing and analysis, The effect of contact pressure and excitation current on contact resistance is determined.
【作者单位】：哈尔滨工业大学军用电器研究所;北京时代之峰科技有限公司硬件开发部;桂林航天电子有限公司;
【基金】：国家自然科学基金(51007010,51377029)资助项目
【分类号】：TM934.1

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