Research of fast infrared temperature detecting method of hydro-generator magnetic pole
Lei Zhang · Transducer and Microsystem Technologies · 2013
It is a difficult problem to carry out nondestructive detection on surface temperature of each magnetic pole in hydro-generators.Through analyzing the mathematical model of the rotor magnetic pole,the magnetic pole identifying method utilizing proximity switch and using IR sensor for surface temperature detection are proposed,and the sensor parameters and requirements of sample rate are deduced.Using this method,sensors are selected and the embedded detecting system based on ARM is designed.The trial operation of this system applied in power plant makes it clear that this method can detect surface temperature of each magnetic pole accurately.