ASSEMBLY AND METHOD FOR DETECTING AND MEASURING THE FOULING RATEOF FLOW HOLES IN A SECONDARY CIRCUIT OF A PRESSURIZED WATER NUCLEAR REACTOR

摘要

An assembly for detecting and measuring the fouling rate by deposits containing at least one ferromagnetic material, including a probe which can be continuously moved inside a tube and which has a body carrying on its outer surface at least one magnetized source for self-orientation of the body of the, at least three magnetic field emitters and at least three magnetic field detectors each positioned between two contiguous emitters.