： This article describes the basic principles of eddy current test and analyzes the acceptance standards of eddy current test for boiler tubes at home and abroad.

In regard to eddy-current test for aluminium alloy tube, it is the established threshold value that will determine the ploducts acceptable or unacceptable.

This paper discusses theory,feature and technique of eddy-current test in station boiler steel pipe,It has important significance to control material quality of station boiler steel pipe,raise repair quality of station boiler and guarantee safe and reliable operation of boiler.

This paper elaborates the application of eddy current testing in the production of tungsten wire on the basis of introducing the basic principles and equipment components of eddy current testing.

Application of eddy detection in tube production;