光电和机压混合方式的水轮机频率测量

A COMBINED METHOD OF MEASURING THE FREQUENCY OF A HYDROTUBINE BASED ON PHOTOELECTRICITY AND GENERATING VOLTAGE

分析了使用光电传感器和发电机电压测量水轮机频率时各自的利弊，提出了采用优势互补的混合方式进行测量，介绍了该方式的原则及实现方法，以及加强可靠性的若干措施．实验表明该方法是有效的．

This paper analyses the respective advantages and disadvantages of the two methods of using photoelectricity sensors and generating voltage to measure the frequency of a hydroturbine and also proposes a combined measu ring method with the advantages of the two methods. The principle and implementation of the method are introduced,together with several means to strengthen its reliability.