Research on the Distribution Rule of Percussion Response Pulse Width in Coin-Tap Test

Table 3

Measured values of tapping response pulse width at different positions in the defective area.

	()
Serial number	1	2	3	4	5	6	7	8	9
(mm)	8	6	4	2	0	2	4	6	8
Defect 1			37.526	6.89	4.86	6.89	37.526
Defect 2	2.026	0.641	0.372	0.285	0.263	0.285	0.372	0.641	2.026
Defect 3	9.381	2.968	1.723	1.319	1.216	1.319	1.723	2.968	9.381