| 光耦P521在高压测量中的应用 |
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| 引用本文： | 范永山,李治源,朱仁贵.光耦P521在高压测量中的应用[J].仪表技术与传感器,2012(1):82-84. |
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| 作者姓名： | 范永山 李治源 朱仁贵 |
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| 作者单位： | 军械工程学院弹药工程系,河北石家庄,050003 |
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| 摘 要： | 为了解决高压测量时输入、输出之间的线性传输和高压隔离问题,介绍了一种基于普通光耦P521的高压测量方法。论述了线性隔离电路的原理、测量的具体方法以及误差的来源,并根据高压测量时需要远距离控制这一特点介绍了利用RS-485总线进行远距离传输的方法。试验结果表明:该测量方法具有测量精度高、隔离高压、结构简单的优点。
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| 关 键 词： | 高压测量 普通光耦 线性隔离 RS-485 |
Application of P521 in High-voltage Measurement |
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| FAN Yong-shan
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LI Zhi-yuan
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ZHU Ren-gui.Application of P521 in High-voltage Measurement[J].Instrument Technique and Sensor,2012(1):82-84. |
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| Authors: | FAN Yong-shan LI Zhi-yuan ZHU Ren-gui |
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| Affiliation: | (Department of Ammunition Engineering,Ordance Engineering College,Shijiazhuang 050003,China) |
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| Abstract: | In order to solve the problems of linear transmission and high-voltage isolation between input and output of high-voltage measurement,a method of measuring high voltage based on P521 was introduced.The principle of linearity analog circuit as well as the technique of measurement and origin of error was described,in addition,in order to solve the problem of distant transmission control,a method of distant transmission based on RS-485 was introduced.The experiment results show that the method offers such advantages as high precision,high-voltage isolation and simple structure. |
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| Keywords: | high-voltage measurement nomoral optocoupler linearity isolation RS-485 |
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