| PTCR耐电流冲击自动测试仪 |
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| 引用本文： | 黎步银,周东祥,曾亦可,付明,时峰. PTCR耐电流冲击自动测试仪[J]. 压电与声光, 2002, 24(3): 240-243 |
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| 作者姓名： | 黎步银 周东祥 曾亦可 付明 时峰 |
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| 作者单位： | 华中科技大学电子科学与技术系,武汉,430074 |
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| 摘 要： | 为满足PTCR生产中耐电流冲击特性测试的要求，研制了多工位PTCR耐电流冲击特性测试。采用计数器、通／断定时器及以TPIC6B595集成芯片为核心的通断时序控制接口电路，实现各个工位的先通先断，从而保证各个工位通断时间满足测试要求，保证了PTCR耐电流冲击性能的准确、高效测试；各通道具有独立的自动过电流保护电路，既保护了测试夹具，又使仪器本身的可靠性大大提高。
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| 关 键 词： | PTCR 耐电流冲击特性 自动测试仪 |
| 文章编号： | 1004-2474(2002)03-0240-04 |
| 修稿时间： | 2001-09-29 |
Automated Current Shock Withstanding Tester for PTCR Thermistors |
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| LI Bu yin,ZHOU Dong xiang,ZENG Yi ke,FU Ming,SHI Feng. Automated Current Shock Withstanding Tester for PTCR Thermistors[J]. Piezoelectrics & Acoustooptics, 2002, 24(3): 240-243 |
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| Authors: | LI Bu yin ZHOU Dong xiang ZENG Yi ke FU Ming SHI Feng |
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| Abstract: | In order to satisfy requirements of the existing PTCR current shock withstanding characteristics test in practice,multiple channel automated current shock withstanding tester for PTCR thermistor.This instrument adopts single chip microcomputer,PLD and various peripheral interface circuits to achieve first on/first off and to guarantee ON/OFF time of each measuring channel satisfying test requirement,which guarantees the precise and proficient test of PTCR current shock withstanding characteristics.Each measuring channel has independent over current protection circuit,not only to protect measuring clamps,but also to enhance the reliability of the tester itself. |
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| Keywords: | PTCR current shock withstanding characteristics automatic tester |
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