Wood Beam Damage Identification Based on the Curvature Mode and Wavelet Transform

Table 4

Difference of wavelet coefficients for different degrees of damage at 520 mm–560 mm.

Damage locations (mm)	Degrees of damage (%)	Differences of wavelet coefficients
520–560	1	0.00797
	2.5	0.03038
	5	0.0844
	10	0.23195
	15	0.41909
	20	0.61348
	30	1.12284