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Portable multi-component gas infrared spectrum detection system

A technology of infrared spectroscopy and detection system, applied in the field of portable multi-component gas infrared spectroscopy detection system, can solve the problems of low precision, limited measurement components, long measurement period, etc., and achieve the effect of reliable equipment

Inactive Publication Date: 2017-10-17
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Description
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  • Application Information

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Problems solved by technology

[0005] Conventional gas sensors have short service life, limited measurement components, and low precision; gas chromatography method has the characteristics of good selectivity and high precision, but it needs to concentrate and enrich the sample at low temperature, heat analysis, and then use an appropriate detector for detection and measurement. The cycle is long, not suitable for on-site online measurement

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  • Portable multi-component gas infrared spectrum detection system
  • Portable multi-component gas infrared spectrum detection system
  • Portable multi-component gas infrared spectrum detection system

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Embodiment Construction

[0022] The present invention will be described in detail below with reference to the accompanying drawings.

[0023] like Figures 1 to 3 As shown, a portable multi-component gas infrared spectroscopy detection system includes a portable case 30 and installed in the portable case 30: an infrared light source 1, an infrared interferometer 2, a sample cell 4, an air pump 5, and an infrared detector 6 , a data acquisition card 7, a computer 8 and a power supply module 21; the sample cell 4 is connected with an intake pipe 22 and an exhaust pipe 23, the air pump 5 is connected in series on the exhaust pipe 23, the intake pipe 22 and the exhaust pipe 23 are connected in series. The air pipe 23 penetrates to the outside of the portable case 30, and is provided with an air inlet port 221 and an exhaust port 231 on the outer wall of the portable case 30, and the air inlet port 221 is connected with the gas sampling head 3; the infrared light source 1 emits The infrared signal is inci...

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Abstract

The invention belongs to the technical field of atmospheric environment detection and spectral measurement and particularly relates to a portable multi-component gas infrared spectrum detection system. The system comprises a portable case, an infrared source, an infrared interferometer, a sample cell, a gas pump, an infrared detector, a data acquisition card, a computer and a power supply module, and the infrared source, the infrared interferometer, the sample cell, the gas pump, the infrared detector, the data acquisition card, the computer and the power supply module are mounted in the portable case. The portable multi-component gas infrared spectrum detection system which is capable of realizing online real-time detection of multi-component gas concentration can be applied to various fields of atmospheric environment detection, such as fields of emergency monitoring of emergency atmosphere accident sites, pollution source emission monitoring, atmospheric environmental monitoring of chemical industrial parks, gas detection in a catalytic conversion process and the like, and reliable equipment is provided for atmospheric environmental monitoring.

Description

technical field [0001] The invention belongs to the field of atmospheric environment detection technology and spectrum measurement technology, and in particular relates to a portable multi-component gas infrared spectrum detection system. Background technique [0002] Fourier transform infrared (FTIR) spectroscopy is a comprehensive detection technology developed rapidly in recent years. It has the advantages of fast measurement speed, wide detection band, high precision, high resolution, large luminous flux, and low stray light. It has been widely used in many fields such as environment, agriculture, petroleum, food, biochemical, pharmaceutical and medicine. Most of the trace and trace gases in the atmosphere are infrared active gases, which have their own characteristic absorption in the mid-infrared region (2.5-25 μm), which is very beneficial for spectral measurement. Therefore, FTIR has a wide range of application prospects in atmospheric environmental monitoring. Many...

Claims

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Application Information

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IPC IPC(8): G01N21/3504G01N21/45
CPCG01N21/3504G01N21/45G01N2021/3595G01N2021/451
Inventor 童晶晶高闽光陈军李胜李妍李相贤魏秀丽王亚萍石建国刘文清刘建国
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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