半导体吸收式光纤温度检测系统硬件电路  

Hardware Circuit for Semiconductor Absorbing Type Optical Fiber Temperature Testing System

作　　者：李艳萍[1] 郭秀梅[1] 张丽红[1] 伦翠芬[1] 张小芹[1] 张丽坤[1] 

机构地区：[1]河北科技师范学院机电工程学院,河北昌黎066600

出　　处：《仪表技术与传感器》2010年第11期13-14,17,共3页Instrument Technique and Sensor

基　　金：河北省秦皇岛市自然科学研究(200901A042)

摘　　要：利用光纤温度传感器的工作原理,通过对透射光强信号的检测,提出了一种用于电力系统的光电检测法,并重点设计了用半导体吸收式光纤传感器检测电力系统热点温度的硬件电路。根据电力系统的特点及精度要求,阐述和分析了检测系统的原理、组成及性能。理论和实验表明:该系统精度高、抗干扰能力强、测量范围宽、实时性强,精确度和实时性均可满足实际要求。该系统稍加改进对其他强电磁干扰以及易燃易爆场合、狭小空间等特殊工况下的温度检测也有一定的实用性。Based on the principle of optical fiber temperature sensor,a method of optical-electrical testing for electrical power system was proposed.The measurement of the transmitting light intensity was utilized in the method.Also a hardware circuit for semiconductor absorption optical fiber temperature sensor in testing electrical power system hotspot temperature was designed emphatically.According to the characteristic and the accuracy requirement of the electrical power system,the principle,the construction and the function of the testing system were elaborated and analyzed.The theories and experiments show that the proposed circuit system has characteristics of high precision,strong anti-interference ability,wide measurement range and strong real-time.Both the precision and real-time property could meet the demand of the actual application.And the system after a slight modification also suits for other temperature detection under special working condition such as strong electromagnetic interference,combustible and explosive area,limited space.

关 键 词：电力系统 半导体吸收式 光纤温度检测 硬件电路 

分 类 号：TN25-39[电子电信—物理电子学]