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远距离检测架空传输导线温度的装置能判断线路的最佳供电负荷。为此目的业已提出各种系统,一种装置是用具有已知温度系数的晶控振荡器,电力线路将信号传送回控制中心;另一种装置是利用光学技术,发送机和接收机间的线路由耐热有机玻璃棒提供。本文介绍能够监控架空传输线上七个不同点温度的检测装置。该系统包括固定在高压传输线路上的发送机、光导纤维和地面的接收机。光导纤维传输信号使之不受电晕等干扰影响。所用光导纤维较详细机械、电气性能可参见文献。发送机由时钟和转换不同传感器的多路转换器、压—频变换及GaAs发光二极管的驱动
Long-distance detection of overhead transmission wire temperature device can determine the best power supply line load. Various systems have been proposed for this purpose. One is to use a crystal-controlled oscillator with a known temperature coefficient, which transmits the signal back to the control center. The other is the use of optical technology where the transmitter and receiver The line is provided by a plexiglass rod. This article describes the detection device that monitors temperature at seven different points on overhead transmission lines. The system consists of transmitters, optical fibers and terrestrial receivers fixed on high-voltage transmission lines. Optical fiber transmission signal from corona interference. Optical fiber used in more detail mechanical, electrical properties can be found in the literature. Transmitter consists of clock and multiplexer for converting different sensors, pressure-frequency transform and GaAs LED driver