摘要
本文应用太赫兹时域光谱技术(THz-TDS)研究了具有一系列不同氢含量和挥发分的煤炭标准物质在太赫兹波段的光学性质。结果表明,煤炭样品的氢含量与挥发分在太赫兹波段内的吸收系数和介电常数实部均存在负线性关系,符合成矿理论中氢含量与挥发分的真实关系,预示了太赫兹波谱技术将在煤质氢含量及挥发分的研究方面提供了高效的实验方法。
We apply terahertz time domain spectroscopy（THz-TDS） transmission mode to measure a serious of hydrogen content（from 2.14 to 4.7% by weight） and volatile matter content（from 5.58 to 33.97% by weight） in coal maceral.The THz absorption coefficient and relative dielectric permittivity of coal maceral depende negatively linear on the hydrogen content and volatile matter content in the frequency range from 0.2THz to 1.4THz.The present identification based on THz-TDS was in agreement with established view on proportional to the relationship of H daf（hydrogen content） and V daf（volatile matter content）,what suggested THz technology can act as a valuable tool for monitoring and inspecting hydrogen content and volatile matter content in coal maceral.
出处
《现代科学仪器》
2013年第4期228-230,共3页
Modern Scientific Instruments
基金
国家重大科学仪器设备开发专项(2012YQ14005)
关键词
太赫兹
煤炭
挥发分
氢含量
吸收系数
THz
Coal maceral
Volatile matter content
Hydrogen content
Absorption coefficient
