A Terahertz Spectroscopy Nondestructive Identification Method for Rubber Based on CS-SVM

Table 1

The THz absorption peak of different rubber.

Rubber name	Peak 1/THz	Peak 2/THz	Peak 3/THz	Peak 4/THz
IIR	1.05	1.17	1.30	none
SBR	0.96	1.09	1.26	none
NR	1.04	1.16	1.25	1.36