| 摘要 |
PROBLEM TO BE SOLVED: To provide a reactor vibration monitoring apparatus, capable of measuring vibration of a reactor core internal structure installed with inclination inside a reactor pressure vessel. SOLUTION: The reactor vibration monitoring apparatus includes: a transmitting ultrasonic transducer 1 which is provided on the outside surface of the reactor pressure vessel 3 and irradiates ultrasonic pulses to the reactor core internal structure inside the reactor; an ultrasonic transmitter 6 which is electrically connected with the transmitting ultrasonic transducer 1 and transmits a transmission signal; a receiving ultrasonic transducer 2 which is provided on the outside surface of the reactor pressure vessel 3, receives the reflected ultrasonic pulses and converts the received reflected ultrasonic pulses into a receiving signal; an ultrasonic receiver 7 which is electrically connected with the receiving ultrasonic transducer 2 and receives the receiving signal; a signal processor 8 which is electrically connected with the ultrasonic transmitter 6 and inputs signals to the ultrasonic transmitter and which is electrically connected with the ultrasonic receiver 7 and receives and processes signals from the ultrasonic receiver 7; and a display device 9 which displays vibration information processed by the signal processor 8. COPYRIGHT: (C)2011,JPO&INPIT |
