【摘要】 本文介绍了一种新颖的在线监测发电机转子表面温度的光纤测量系统，并对系统的各种性能进行了实验测试。结果表明，该系统具有结构简单，安装方便，性能可靠等优点，系统测温误差在±３℃左右。更多还原

【Abstract】 A large turbogenerator set is a complex system. To ensure safe and reliable operation of generator set for a long time, it is necessary to monitor and control various main running parameters of generator set real time on-line. Temperature measurement of generator rotator surface is an important parameter. The paper, in the light of structure features and surface state of turbogenerator rotator ,and on the basis of analysing and compar- ing varieties of generator rotator temperature measuring methods ,puts forward a novel scheme which uses optical fiber for measuring temperature of generator rotator surface. In the scheme ,GaAs semiconductor crystal is used as temperature sensor element, Branch optical fiber burch is used as transmiting light optical fiber. The signal processing and displaying are completed by 8098 single chip microcomputer. The experimental results show that the system can complete monitoring temperature variation of generator rotator real time on -line The tempera- ture measuring principle and method are practicable. The system is characterised by simple structure,easy instal- lation, etc.The system has reliable properties such as good stability ,repetitiveness and anti-interference,etc. The average error of the system is within 3C更多还原