Eddy current probe comprising an expandable sleeve in order to dilate diametrically of the tubes, in particular the tubes of a list of steam, while sensing the location of the tube plates and by measuring the amplitude of the expansion

摘要

The probe 200 to eddy currents comprises an expandable sleeve 322 able to expand diametrically a tubular member 210 until it comes into contact with a structure which is adjacent to 90 and to expand diametrically. / p & & p & the probe 200 is also possible to detect the position of the structure, 90 and the amplitude of the diametral expansion of the tubular member 210 and it comprises a body forming a support 280, an expandable sleeve 322 fixed in a sealed manner to the body 280 around the latter and adapted to expand diametrically the tubular member 210, and a winding 450 to eddy currents, which is connected to the body 280 and intended to detect a continuous manner and electromagnetic the variations of the electromagnetic properties of the tubular member 210, and of the structure, 90 and the amplitude of the diametral expansion of the tubular member 210 and the member 470.