17 * 17 type reactor for control rod and current inspection

摘要

The present invention relates to a calibration specimen assembly for 17 * 17 reactor control rod eddy current inspection, which is used to evaluate the cladding integrity of control rod assemblies inserted into a 17 * 17 fuel assembly.;The present invention consists of a group of calibration specimens, which can be used to calibrate 24 eddy current transducers simultaneously, and multi-stage processing of grooves by size to simulate wear defects in the cover of the absorber region for reactor control.;The present invention can calibrate 24 eddy current transducers at the same time by using the calibration specimen assembly, so that the eddy current signal can be obtained easily and quickly, greatly reducing the number of days of eddy current inspection, and obtaining a more accurate calibration curve. Will be.