现代电子技术Issue(9)：151-154,4.
矩阵式PTCR耐电压自动测试系统
Voltage-withstanding automatic test system for matrix PTCR
摘要
Abstract
A voltage⁃withstanding auto⁃test system for matrix PTCR was designed to solve the problems of low efficiency in the voltage⁃withstanding test process of PTC thermistors,and unstable and unreliable test results. A cylinder is used in the sys⁃tem to clamp and move sample holder. The high⁃speed MCU controlled relay set is adopted to test the PTCR samples with 8*16 matrix form sequentially. Every channel contains an overcurrent protection circuit which can monitor loop current and response rapidly in case of overcurrent. The automatic sorting of samples can be executed with PC. The actual application shows that the tested result is precise,stable and reliable,and the system is high automatic and efficient.关键词
热敏电阻/耐电压测试/矩阵式PTCR/过流保护Key words
thermistor/voltage-withstanding test/matrix PTCR/overcurrent protection分类
信息技术与安全科学引用本文复制引用
黎步银,戴世龙,龚道远..矩阵式PTCR耐电压自动测试系统[J].现代电子技术,2013,(9):151-154,4.基金项目
华中科技大学2012年自主创新基金科学仪器类仪器专项资助 （）
