Study on an Air Cushion EMAT Probe;

Design of EMAT Data Acquisition and Analysis Software Based on Virtual Instrumentation Technology

value on-line measurement is of vital improtance for quility monitoring and controlling,In this paper,the features of the two popular methods,x-Ray method and EMAT method,are introduced respectively.

A method for measuring acoustic field of electromagnetic ultrasound is introduced.

Introduces the working and thickness measurement principle of electromagnetic ultrasound and presents a simple and easy technique to induce and receive the electromagnetic ultrasound from the magnetic material.

It introduces new type inspection method——the main component parts,basic working principle and its noticed items during actual application of electric magnetic ultrasonic test.

From the traditional inspection and measurement method of steel tube, the paper stated the principle of electric magnetic ultrasonic inspection and measurement, the electric magnetic ultrasonic inspection and measurement mode of steel tube defects and the research direction of the electric magnetic ultrasonic inspection and measurement of steel tube defects.

A kind of high frequency pulse electrical source at the need of electromagnetic ultrasonic experiments is presented.

This paper introduces the calculation of electromagnetic acoustics excitation field in the finite element method,and then analyses and discusses the distribution and characteristic of the most used excitation field in electromagnetic ultrasonic testing.

Application of electromagnetic acoustic in steel pipe inspection