| 铁路安全继电器检修中模拟量采集的设计 |
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| 引用本文： | 侯青祥.铁路安全继电器检修中模拟量采集的设计[J].铁路计算机应用,2016,25(1):37-40. |
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| 作者姓名： | 侯青祥 |
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| 作者单位： | 西安全路通号器材研究有限公司,西安 710043 |
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| 摘 要： | 铁路安全继电器是列车安全稳定运行中的关键信号产品,每到一定时间就需要进行检修更换测试,本文根据继电器的型号、电气特性和接点、线圈电阻的测量范围,开发了铁路安全继电器电气特性和接点线圈电阻的测试系统,使用INA118、OPA340运算放大器设计前端的信号处理电路,使用LTC1966处理交流信号,使用STM32单片机的自身12位AD转换器采集模拟信号,实现了安全继电器的精确稳定测量。
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| 关 键 词： | 铁路安全继电器 交流信号测试 STM32 信号处理 |
| 收稿时间： | 2015-04-29 |
Design of analog collection in railway safety relays repair |
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| Institution: | Xi'an Railway Signal Research Co. Ltd., Xi'an 710043, China |
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| Abstract: | Railway safety relays are the key signal products for safe and stable operation of the train. At a certain time, they need to be repaired, replaced, and tested. According to the type of relay, electrical characteristics and contacts, measurement range of coil resistance, etc., it was developed a test system for the railway safety relays. Precise and stable measurement of safety relays was implemented by using INA118 and OPA340 to design the front-end signal processing circuit, using LTC1966 to process the AC signal, using 12 AD converter of STM32 microcontroller to collect analog signal. |
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