摘要:电流测量系统是基于法拉第效应,达到对电力系统电流测量、实时监控的功能。系统的电路模块是以AT89C52单片机为控制核心。从传感头出射的线偏振光经过光电转换、前置放大、模数转换后,经单片机处理,在LCD1602上显示相应的电流值;同时实现由于测量值超出预设值系统发出警报的功能。该系统以特殊光纤作为传感元件和信号传输载体,具有重量轻、灵敏度高、抗电磁干扰、安全性能好等特点。40637 毕业论文关键词:法拉第效应;磁光玻璃;电流测量
Design of Current Measurement System
Abstract: The design of current measurement system is based on Faraday effect to realize the function of current measurement and real-time monitoring in power system. With AT89C52 single chip microcomputer as control core in circuit modules, linear polarized light from sensor head is processed, including photoelectric translation, pre-amplification and analog-digital conversion, then LCD1602 will display real-tine current after the single chip microcomputer disposes the relevant date. Meanwhile,the system will raise the alarm if measured value is higher than preset value. The system takes special fiber-optic as sensor material and signal transmission carrier and has many points, such as: light weight, high sensibility, anti-electromagnetic interference, security and so on.
Keywords: Faraday effect; Magneto-optic glass; Current measurement
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