Research on the Fault Diagnosis Method of Mine Fan Based on Sound Signal Analysis

Table 1

The output energy of the signal table.

Group	E30	E31	E32	E33	E34	E35	E36	E37
1	12590.25	36.32	182.97	304.06	63.23	22.87	82.06	170.86
2	12268.89	35.4	178.32	297.64	61.62	22.29	79.98	166.52
3	12462.69	35.94	179.71	299.52	62.56	22.63	81.2	169.06
4	12864.11	37.13	188.42	313.59	64.64	23.38	85.27	176.05
5	12794.83	36.92	186	310.46	64.28	23.25	84.79	175.06