Attenuation Characteristics of Stress Wave Peak in Sandstone Subjected to Different Axial Stresses

Table 2

Temporal-spatial response intensities and attenuation coefficients.

Axial stress (MPa)	Temporal response intensity (mV)	Spatial response intensity (mV)	Temporal attenuation coefficient (μs^−1)	Spatial attenuation coefficient (m^−1)
0.00	0.2352	0.2081	0.0019	0.7273
2.76	0.2056	0.1741	0.0018	0.6733
5.52	0.1588	0.1374	0.0015	0.5159
8.28	0.1166	0.1042	0.0012	0.3883
11.04	0.0932	0.0854	0.0009	0.3012
13.80	0.0850	0.0751	0.0008	0.2613
16.56	0.0746	0.0680	0.0009	0.2771
19.32	0.0706	0.0652	0.0008	0.2486
22.08	0.0703	0.0646	0.0009	0.2618
24.84	0.0697	0.0632	0.0010	0.2952
27.60	0.0664	0.0623	0.0009	0.2822
30.36	0.0694	0.0619	0.0011	0.3226
33.12	0.0669	0.0611	0.0012	0.3408