A Novel Complementary Method for the Point-Scan Nondestructive Tests Based on Lamb Waves

Table 2

Coordinates of signal acquisition locations on aluminum plate.

Area	Coordinates; (, )/(mm)	Location	Coordinates; (, )/(mm)
A1	(200, 200)	A9	(200, 600)
A2	(400, 200)	A10	(400, 600)
A3	(600, 200)	A11	(600, 600)
A4	(800, 200)	A12	(800, 600)
A5	(200, 400)	A13	(200, 800)
A6	(400, 400)	A14	(400, 800)
A7	(600, 400)	A15	(600, 800)
A8	(800, 400)	A16	(800, 800)