电气开关接点机械抖动次数的测量  

Measurement of mechanical dithering number of electric switch contact

作　　者：欧伟明[1] 聂辉[1] 张婷[1] 

机构地区：[1]湖南工业大学电气与信息工程学院,株洲412007

出　　处：《电子测量与仪器学报》2014年第11期1268-1273,共6页Journal of Electronic Measurement and Instrumentation

基　　金：国家自然科学基金(51077046);湖南工业大学基金(2013C26)资助项目

摘　　要：为了研究电气开关电接点的机械抖动次数，特别是为了测量电接点的机械抖动次数，研制了基于微控制器的机械抖动次数测量系统。论述了测量系统的硬件设计和软件设计，给出了电路原理图和程序流程框图，以及关键程序源代码。对轻触按钮开关、复式按钮开关、单刀双掷开关的机械抖动次数进行了测量，测量结果表明：机械抖动次数是随机数，为0～11；对于复式按钮开关而言，前沿抖动次数一般小于后沿抖动次数；对单刀双掷开关而言，前沿抖动次数明显大于后沿抖动次数；人们在操作按钮开关时，要迅速果断且用力要恰当，这样有助于减小机械抖动次数。In order to study the mechanical dithering number of electric switch contact, especial for measuring the mechanical dithering number of electric contact, a measurement system of the mechanical dithering number was de-signed based on MCU.This paper discussed the hardware design and software design of the measurement system, and provided circuit diagram and flow chart of program, as well as the key source code.For nudging button, com-pound button and SPDT switch, the mechanical dithering number was measured.The measurement results show that： the number of mechanical dither is random digit, it is 0 to 11; for compound button, front edge dithering number is usually less than back edge dithering number;for SPDT switch, front edge dithering number is obviously greater than back edge dithering number.When pressing the button switch, we need to operate it quickly and deci-sively and force it appropriately, which helps to reduce the mechanical dithering number.

关 键 词：电接点 机械抖动 抖动次数 测量 微控制器 

分 类 号：TN98[电子电信—信息与通信工程] TP216.1[自动化与计算机技术—检测技术与自动化装置]