摘要
高压开关触点、母线一般处于高电位,检测其温度一直是电力系统检测中的难题。针对这一问题,笔者提出了一种结合光纤技术的检测方法,利用AVR单片机控制光源,通过光强度型光纤温度传感器的调制,将带有温度信息的光信号耦合到LOG114芯片进行光电转换,输出信号再由AVR单片机进行A/D转换,经数据分析,得到高精度的温度值。结果表明,该系统具有精度高、体积小、易安装等特点。
For directly detecting temperature of the contacts and bus of high voltage switch, this paper presents a detection method by making use of fiber-optic technology. An AVR microcontroller is adopted to control light source, the optical signal with temperature information is coupled into LOGll4 chip for photo-electric conversion through modulation via light intensity type optical fiber temperature sensor, and A/D conversion of the output signal is then performed by the AVR microcontroller to obtain high-precision temperature values through calculation. The system has the features of high precision, small volume, and easy installation.
出处
《高压电器》
CAS
CSCD
北大核心
2008年第6期513-515,共3页
High Voltage Apparatus
基金
江西省高等学校教学研究省级课题项目"虚拟仿真在创新实验教学中的研究与实践"(JXJG-07-15-7)
