his paper is concerned with quantitative evaluation of corrosion shape on outer surface of Pipe by Electro agnetic Acoust ic Transducer (EMAT). The pipe wall thinning was modeled semi ellipse shape. And FAC s been considered more dangerous. Th e pipe wall thinning was able to be measured with precision. In neral, FAC had a smooth surface wall thinning. EMAT were a ble to measure the echo in the test piece with 11 thinning of smooth enough. The EMAT is able to use to test for the FAC....
英字タイトル:
Measurement method of Pipe Wall Thinning Shape by EMAT

This paper is concerned with a simulator related to nondestructive test using Electromagnetic Acoustic Transducer (EMAT). The simulator developed here can be applied to pipe wall thinning of stainless steel used in nuclear power plants. First, mathematical models for the inspection are given by a transient e ddy current equation and by a time dependent elastic wave equation in two dimensions. Secondly, shape of pipe wall thinning is modeled by B-spline functio n and is applied to the mathematical models us...
英字タイトル:
Development of NDT Simulator with Method of Mapping for Detection of Pipe Wall Thinningusing EMAT