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Vibration measuring apparatus for nuclear reactor internal structure and vibration measurement method therefor
Vibration measuring apparatus for nuclear reactor internal structure and vibration measurement method therefor
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机译:核反应堆内部结构的振动测量装置及其振动测量方法
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摘要
A vibration measuring apparatus for nuclear reactor internal structure includes a holder which has an opening contact on a surface of a pressure vessel of a nuclear reactor; a vibrator accommodated in the holder so as to transmit or receive an ultrasonic wave; a couplant with which the holder is filled up; and, a bias component applies a biasing force to the vibrator in the direction of the opening; The couplant is a solid state of metal material at normal temperature and change to liquid stage by heat transfer from the pressure vessel.
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