Research on AE Source Location of Linear and Plane Rock Mass

Table 6

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

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
3200	14.37	5.63	50.69	0.69	68.13	1.87
2955.6505	17.28	2.72	50.83	0.83	66.93	3.07
3174.6032	14.67	5.33	50.70	0.70	68.00	2.00
2863.955	18.37	1.63	50.88	0.88	66.49	3.51
3166.2353	14.77	5.23	50.71	0.71	67.96	2.04
3208.5476	14.26	5.74	50.68	0.68	68.17	1.83
2970.2897	17.10	2.90	50.82	0.82	67.00	3.00
2884.6085	18.13	1.87	50.87	0.87	66.59	3.41