CAJ | 학술논문

为了解决PTC热敏电阻元件在耐电压测试过程中测试效率低以及测试结果的稳定性与可靠性差等问题,设计了矩阵式PTCR耐电压自动测试系统.系统由气缸夹持并推进样品夹具;采用高速MCU控制继电器组顺序对8×16矩阵式PTCR样品进行耐电压测试;各路均有过流保护电路,可实时监测回路电流并对过流迅速做出反应,且运用了去干扰技术;还可与上位机配合自动分选样品.实际应用表明,系统的测试结果准确稳定可靠,自动化程度高,提高了生产效率.
위료해결PTC열민전조원건재내전압측시과정중측시효솔저이급측시결과적은정성여가고성차등문제,설계료구진식PTCR내전압자동측시계통.계통유기항협지병추진양품협구;채용고속MCU공제계전기조순서대8×16구진식PTCR양품진행내전압측시;각로균유과류보호전로,가실시감측회로전류병대과류신속주출반응,차운용료거간우기술;환가여상위궤배합자동분선양품.실제응용표명,계통적측시결과준학은정가고,자동화정도고,제고료생산효솔.
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.