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Device and method for controlling the dimensions of a fuel rod cladding tube of a nuclear fuel control cluster in a nuclear reactor
Device and method for controlling the dimensions of a fuel rod cladding tube of a nuclear fuel control cluster in a nuclear reactor
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机译:用于控制核反应堆中的核燃料控制组件的燃料棒包壳管的尺寸的装置和方法
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摘要
The device (10) has ultra-sound transmission or reception units (16, 18) for transmitting or receiving ultra-sound waves along respective paths, where the units have respective ultra-sound probes (20, 22) and propagation directions of the waves are opposite along incident parts (34, 40) of the units perpendicular to a reference axis (Z). A differentiation unit differentiates a propagation time of the respective waves between each of the probes and the axis such that propagation time of one of the waves along one of the paths is longer than that of another wave along the another path. An independent claim is also included for a method for controlling dimensions of cylindrical tubular element i.e. sheath, of a rod of a control cluster in a nuclear reactor core.
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