NON DESTRUCTIVE INSPECTION APPARATUS AND ITS METHOD FOR MEASUREMENT OF ACCUMULATED OXIDE SCALE

摘要

The present invention is non-destructive test apparatus and non-destructive testing relates to a method , a probe to measure the position of the boiler tube and a transfer step , the probe in the oxide scale deposited on the inner surface of the probe through the tube by measuring the current generated by the micro- magnetization and delivering a measuring current , both the scale and the reference group based on tube current stored according to the clogging rate with reference to the tube and for determining the clogging rate of a boiler tube in accordance with the measured current passed step , a step of displaying the determined pipe blockage rate in 2D or 3D depending on the tube information . ;