Light-water reactor atomic reactor control rod aggregate eddy current prosecuting attorney Prove

摘要

The present invention checks the integrity of control rod cladding by applying eddy current probe and eddy current signal evaluation technology that can detect the wear and tear on the outside of the light-water reactor type control rod cladding tube, and check the integrity of the control rod cladding. The present invention relates to a light-water reactor-type reactor control rod assembly eddy current inspection probe that can prevent accidents such as power plant shutdown in advance.;In the probe for detecting and measuring the change in impedance of the control rod cladding tube of the reactor, the light-water reactor-type reactor control rod assembly eddy current inspection transducer of the present invention forms a differential interpolation coil by inserting a ferrite core in each of the pair of coiling rings, Eight of said differential interpolation coils are arranged at equal angles about the outer edge of said control rod sheath.