电子元件与材料Issue(11)：104-107,4.DOI:10.14106/j.cnki.1001-2028.2014.11.025
触点初始接触电阻的分布特征与寿命相关性研究
Distribution of initial contact resistance of contact and its relationship with lifetime
摘要
Abstract
In order to predict relay’s lifetime by using initial information, based on the electrical durability test for relays, the distributions of the initial contact resistances of the contacts were studied with the methods of kernel density estimation and polynomial fitting. The results show that the initial contact resistances of relays have their own fluctuated trends, and the trends of each change are not alike. The relay is prone to early failure and has short lifetime when the large values occurr frequently in the initial contact resistance, even if the value of contact resistance go back to the normal range after operating for a while. The maximum of resistance fitting curve is approximately linear with the lifetime of relay’s initial contact resistance.关键词
继电器/触点/接触电阻/核概率密度/多项式拟合/初始信息/寿命Key words
relay/contact/contact resistance/kernel density/polynomial fitting/initial information/lifetime分类
信息技术与安全科学引用本文复制引用
张菲菲,李志刚..触点初始接触电阻的分布特征与寿命相关性研究[J].电子元件与材料,2014,(11):104-107,4.基金项目
国家自然科学基金资助项目（No.51377044）；高等学校博士学科点专项科研基金资助项目（No.20121317110008）；河北省科技支撑计划资助项目 （）
