FIELD: nuclear power engineering; checking nuclear reactor fuel elements.
SUBSTANCE: proposed method involves following procedures. Welded joint between plug and fuel rod can incorporating spring is checked for condition by means of electromagnetic induction detector. Excess-energy formed welded joint loosens spring metal structure which can reduce electromagnetic coupling and level of detector-recorded signal. Criterion of fuel rod quality estimate is found by comparing peak values of signal and those of signal on straight-line section of curve.
EFFECT: enhanced quality control level of welded joint between plug and can charged with fuel pellets.
1 cl, 2 dwg
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