傅里叶变换光谱仪用红外水平衰减全反射测试仪  

Infrared horizontal ATR instrument used in Fourier transform spectroscopy

作　　者：孟庆华[1] 向阳[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033

出　　处：《光学精密工程》2007年第10期1515-1519,共5页Optics and Precision Engineering

基　　金：国家自然科学基金资助项目(No.60538020)

摘　　要：介绍了用于傅里叶变换光谱仪的红外水平衰减全反射(ATR)测试仪的基本原理和设计思想,分析了影响光谱强度的穿透深度和反射次数。将光斑缩小三倍聚焦到样品上,把光路还原聚焦到接收器上,对能量利用率进行了分析计算。给出了在FTS-7傅里叶变换光谱仪上用该测试仪测量的几种样品的光谱图。结果表明,该测试仪能量利用率为5%,全反射15次,所测谱图质量接近于同类装置水平。The general consideration and design ideas for an infrared horizontal Attenuation Total Reflection（ATR） instrument used in the Fourier transform spectroscopy were introduced, and the penetrating depth and reflective times affecting on the spectrum intensity were analyzed. The facula was reduced three times and focalized on samples, the optical system was restored and focalized to a receiver, and the energy usage ratio can be calculated and analyzed. Several samples were tested by the FTS- 7 Fourier transform spectroscopy, the results show that the energy usage ratio is 5 %, the total reflection is fifteen times, and the quality of the spectrum is close to the level of the similar instrument.

关 键 词：傅里叶变换光谱仪 衰减全反射测试仪 能量利用率 光谱图 

分 类 号：TH744.1[机械工程—光学工程]