| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hammering test system which is capable of inspecting a state of a test object regardless of the skill of an inspector. <P>SOLUTION: A measurement result of an impact sound which is detected by a microphone 20 attached to a shockless hammer 2 in the state that the shockless hammer 2 is in contact with a test object without bouncing after striking the test object is operated to recognize the state of the test object, whereby the state of the test object can be inspected regardless of the skill of the inspector. For example, a signal of the impact sound which is measured by the microphone 20 when the test object is struck with the shockless hammer 2 is different between a portion free from exfoliation of a laminated material of the test object and a portion with exfoliation of the laminated material. This signal difference facilitates recognition of the state of the test object. <P>COPYRIGHT: (C)2012,JPO&INPIT |
