摘要
介绍了傅里叶变换光谱仪的衰减内全反射装置(ATR)的基本原理、光学和机械结构设计。将光斑缩小3倍聚焦到样品上,光路再还原聚焦到接收器上。分析了穿透深度和内全反射次数,对能量利用率进行了估算。该装置实际能量利用率为6%,内全反射l4次。最后给出了在美国伯乐公司FTS-7傅里叶变换光谱仪上用该装置测试聚丙烯和头发样品的红外光谱图。
The general consideration,design of optical and mechanical structure for an inner attenuation total reflection（ATR） instrument used in infrared Fourier transform spectroscopy were introduced.The facula was reduced three times and focalized on samples,the optical system was restored and focalized to a receiver.The penetrating depth and inner total reflective times were analyzed,and the energy usage ratio could be calculated.The results showed that the energy usage ratio was 6%,the inner total reflection was fourteen times.At last,several samples of hair and polypropylene were tested by the FTS-7 infrared Fourier transform spectroscopy of American Bio-rad Company.
出处
《光机电信息》
2011年第10期48-52,共5页
OME Information
关键词
红外傅里叶变换光谱仪
能量利用率
内全反射
穿透深度
infrared Fourier transform spectrometer
energy usage ratio
inner total reflection
penetrating depth
