17 * 17-type reactor control rod Eddy current specimen calibration specimen assembly

摘要

The present invention relates to a set of 17 17 reactor control rod eddy current test fixture specimens used to evaluate the integrity of the closure of a control rod assembly inserted into a 17 17 fuel assembly.;This design is made by assembling each of the calibration specimen rods to simultaneously correct 24 eddy current probes and by multi-stepping the grooves in size to simulate abrasive defects appearing in the cladding of the absorber region for reactor control.;Since the present invention can simultaneously correct 24 eddy current transducers at a time using the calibration specimen aggregate, it is possible to obtain the eddy current signals easily and quickly, thereby greatly shortening the constant current of the eddy current test and obtaining a more accurate calibration curve .