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在消化美国Nicolet公司的5—DX光谱仪的基础上,我们对该仪器进行了改造,首次在这种仪器上实现FT—IR辐射光谱测量,从而大大地扩展了该仪器的使用功能和应用领域。改造后的仪器测量的波数范围为4600—400cm~(-1),温度范围为350～550℃。文章介绍了这种光谱技术的测量原理[略]和改造细节,同时对这种光谱方法作了讨论,认为该方法和色散法、吸收法相比,具有扫描速度快、灵敏度高等优点,具有广泛的实际应用价值。
On the basis of digesting Nicolet's 5-DX spectrometer in the United States, we retrofitted this instrument for the first time to achieve FT-IR radiation spectrometry on this instrument, which greatly expanded the function and application of the instrument. After the transformation of the instrument measured wave number range of 4600-400cm ~ (-1), the temperature range of 350 ~ 550 ℃. This article introduces the measuring principle of this spectroscopy technology and the modification details, and discusses the spectroscopic method. Compared with the dispersion method and the absorption method, this method has the advantages of fast scanning speed and high sensitivity, and has a wide range of Practical value.