Research on AE Source Location of Linear and Plane Rock Mass

Table 4

The real coordinates and positioning coordinates of line positioning at different wave velocities in G3768.

Calibration wave velocity (m/s)	Real coordinates and positioning coordinates (cm)
	Event 1		Event 2		Event 3
	20	Absolute error	50	Absolute error	70	Absolute error
3157.8947	22.29	2.29	51.55	1.55	67.61	2.39
3495.1456	19.06	0.94	51.45	1.45	69.22	0.78
3130.4348	22.55	2.55	51.56	1.56	67.47	2.53
3354.0477	20.41	0.41	51.49	1.49	68.54	1.46
3483.8485	19.17	0.83	51.45	1.45	69.16	0.84
3323.0565	20.71	0.71	51.50	1.50	68.40	1.60
3506.4821	18.95	1.05	51.45	1.45	69.27	0.73
3333.3333	20.61	0.61	51.50	1.50	68.44	1.56