太赫兹技术在识别煤和煤矸石中的应用

Research on terahertz technology in identifying coal and coal gangue

文章利用太赫兹时域光谱仪探究了太赫兹技术在识别煤和煤矸石中的应用。将煤和煤矸石破碎研磨并与聚乙烯进行混合压制成样片进行测试,对所得到的光谱进行计算分析。结果表明,通过对选用频段下煤和煤矸石的折射率、吸收系数和透射系数进行对比,太赫兹技术能够很好地应用到煤和煤矸石的识别中。

This paper investigates the application of terahertz technology in identifying coal and coal gangue by using terahertz time-domain spectrometer.The coal and coal gangue are crushed and ground and mixed with polyethylene to form a sample for testing.The obtained spectra are calculated and analyzed.The results show that terahertz technology can be well applied to the identification of coal and coal gangue by comparing the refractive index,absorption coefficient and transmission coefficient of coal and coal gangue at selected frequency bands.