Research on the application of composite materials based on terahertz time-domain spectroscopy technology

At present, there are many methods of non-destructive detection, but due to the characteristics of material characteristics and detection accuracy, the traditional testing method has its limitations, resulting in insufficient test results. In recent years, with the continuous deepening of photoelectric technology, Terahertz has gradually entered people's vision. As an electromagnetic wave, Terahertz contains a lot of physical and chemical information. According to the characteristics of Terahertz wave recognition ability and good penetration ability, nearby, nearby, recent In the past ten years, it has been widely used in nondestructive testing in various fields. This article first introduces the traditional detection method of composite materials; secondly introduces the principle of Terahertz testing; then, the research on the nondestructive testing application of Terahertz; The analysis of some problems currently existing in this technology, and looking forward to its future research direction and application prospects. Compared with traditional nondestructive testing technology, Terahertz technology has more accurate detection accuracy and can be suitable for multiple types of composite materials. However, the current limit is that the detection process is not enough. There is more in-depth research.