|発明の名称||METHOD AND DEVICE FOR TESTING SURFACE STATE OF ARTICLE TO BE MEASURED|
PROBLEM TO BE SOLVED: To provide a method for testing the surface state of an article to be measured, capable of evaluating the adhesion state of the surface film on the article to be measured, the mechanical physical properties other than a hardness of the article to be measured, the repulsive hardness of a material and the like on the basis of the vibration state of a hammer after repulsion caused by allowing the hammer to impinge against the article to be measured at a predetermined speed or the strain produced in the hammer at the time of impingement.
SOLUTION: In the method for testing the surface state of the article to be measured, the hammer is allowed to impinge against the article to be measured at the predetermined speed and the vibration of the hammer after repulsion is measured to evaluate the surface state of the article to be measured. This testing method is simple and practical, and the adhesion strength of various surface modified films can be also evaluated.
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