APPARATUS AND METHOD FOR MEASURING SETUP ANGLE OF PENETRATION NOZZLE IN PRESSURE VESSEL

摘要

An apparatus for measuring setting angle of pressure vessel penetration nozzle and measuring method are provided to accurately measure the setting angle by inserting the probing body into the penetration nozzle without opening or disassembling the vessel. An apparatus for measuring setting angle of pressure vessel penetration nozzle comprises a probing body(110), and eddy current coil(140). The proving body is inserted to the penetration nozzle inside of the pressure vessel, and enables movement to the longitudinal direction of the penetration nozzle. The eddy current coil is installed in the probing body and measures eddy current resistance to the longitudinal direction and columnar direction of the penetration nozzle along circumferential direction rotation.