AN ULTRASONIC MEASURING ARRANGEMENT FOR MEASURING REMNANT THICKNESS OF A STAVE WITH A BENT COOLING CHANNEL

摘要

The invention relates to an ultrasonic measuring arrangement (112) for measuring thickness of a stave (100) with a bent cooling channel (104) being aligned and contacted with the bent cooling channel (104) while measuring thickness of the stave (100), the ultrasonic measuring arrangement (112) comprising an ultrasonic probe (116), the ultrasonic probe (116) being attached normally to a surface (SA) of a shoe (120), the shoe (120) being made up of the same material as that of the stave (100), the ultrasonic probe (116) being configured to send and receive ultrasonic wave so as to measure thickness of the stave (100), the ultrasonic probe (116) being attached normally to the shoe (120) so as to restrict mode conversion, the mode conversion arising on a condition of the ultrasonic wave being transmitted from one medium to another medium at an angle other than normal. {Figs. 6 & 6a}