| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that a sensory test by striking of humans is hard to fix amount and has large variations.SOLUTION: As a shaft fixed with a hammer for striking a test object, driving means for driving the shaft, and restoring means of the shaft moved by the driving means, one leaf spring is engaged with the shaft, and bent in a state showing the elastic force of the leaf spring. Striking sound from a striking device for a hammering test fixing a part of the leaf spring to a structure fixed with the driving means is collected by sound collecting means, and the striking sound is AD-converted and processed to determine a state of the test object. |
