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工程气体分析计,按其分离原理,主要概括如下: a)有以电磁波吸收、散射、辐射和萤光现象为基础的非分散红外线吸收法、紫外线吸收法、化学发光法和光散射粉尘法制成的多种气体分析计。信息分离和定量精度由光波长度和检出器的选择性决定的。 b)根据磁场效应而研制的磁式量氧计。它是利用氧分子的常磁性原理制成的。在实验室里,多用核磁共振法和电子自旋共振法。但作为工程气体分析计,在实用上仅限
Engineering gas analyzers, according to their separation principle, are summarized as follows: a) There are non-dispersive infrared absorption method, ultraviolet absorption method, chemiluminescence method and light scattering dust method based on electromagnetic wave absorption, scattering, radiation and fluorescence phenomenon A variety of gas analyzers. Information separation and quantitative accuracy is determined by the wavelength of light and the selectivity of the detector. b) magnetic oxygen meter developed according to the magnetic field effect. It is made using the principle of the permanent magnetism of oxygen molecules. In the laboratory, the use of nuclear magnetic resonance and electron spin resonance method. However, as an engineering gas analyzer, it is practically limited