A Stress Measurement Method Based on Terahertz Time Domain Spectroscopy System
A terahertz time-domain and spectral system technology, applied in the field of stress measurement based on a terahertz time-domain spectral system, can solve problems such as unsatisfactory experimental stress measurement, and achieve the effect of enriching measurement methods
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[0035] In order to make the purpose, technical solution and advantages of the present invention clearer, the implementation manners of the present invention will be further described in detail below.
[0036] The emergence of terahertz waves has broken through these limitations. Terahertz waves have many unique properties, especially the strong penetrating ability to many non-polar opaque objects. The development of terahertz time-domain spectroscopy technology is also relatively mature, and has been widely used in communication, medical imaging and non-destructive testing and other fields. Combining the terahertz time-domain spectroscopy system and the principle of photoelasticity, this method proposes a new experimental method for measuring the stress state of objects, extending its range of measuring materials as much as possible.
[0037] The present invention is based on the law of stress optics, and uses this principle to obtain the relationship between the phase change ...
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