Carbon dioxide isotope detection equipment
A technology for detecting equipment and carbon dioxide, applied in measuring devices, material analysis through optical means, instruments, etc., can solve problems such as poor measurement accuracy, and achieve the effects of improving measurement accuracy, reducing size, and strong absorption
Pending Publication Date: 2020-11-20
BEIJING HUAGEN ANBANG TECH CO LTD
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Problems solved by technology
[0005] In order to solve the problem of poor measurement accuracy of traditional detection equipment, the purpose of the embodiment of the present invention is to provide a carbon dioxide isotope detection equipment
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[0023] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore It should not be construed as a limitation of the present invention.
[0024] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indic...
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The invention provides carbon dioxide isotope detection equipment. The carbon dioxide isotope detection equipment comprises an intermediate infrared laser, a direct-injection absorption cell, an intermediate infrared detection device and a gas circuit module for generating negative pressure. A first transparent window and a second transparent window are arranged at two ends of the absorption cellin the length direction respectively; the absorption cell is provided with a closed cavity; the intermediate infrared laser is arranged on the outer side of the first transparent window and used for emitting intermediate infrared light sequentially penetrating through the first transparent window and the second transparent window; and the intermediate infrared detection device is arranged on the outer side of the second transparent window and used for receiving the intermediate infrared light penetrating through the second transparent window. According to the carbon isotope detection equipmentprovided by the embodiment of the invention, the required optical path can be reduced, so that the direct-injection type absorption cell can also meet the requirements, and the size of the absorptioncell can be reduced; and etalon interference does not exist when the intermediate infrared light passes through the absorption cell, and absorption line cross interference can be avoided in a low-voltage state, so that measurement precision can be improved, and stability is high.
Description
technical field [0001] The invention relates to the technical field of carbon dioxide gas isotope detection, in particular to a carbon dioxide isotope detection device. Background technique [0002] Currently, NDIR (Non-Dispersive Infra Red, non-dispersive infrared) technology and IRMS (Isotope Ratio Mass Spectrometry, isotope ratio mass spectrometry) technology are usually used for the detection of isotope abundance of carbon dioxide gas. [0003] The basic principle of IRMS technology to measure isotopes is to distinguish isotope molecules according to the different bending paths in the magnetic field caused by the different molecular mass-to-charge ratios. This method cannot distinguish isomers with the same molecular mass. In addition, IRMS technology detection requires pretreatment and vacuum environment, and the instrument system is huge, complicated to operate and expensive, so it can only be used for laboratory analysis, which has certain limitations, especially not ...
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Login to View More IPC IPC(8): G01N21/3504G01N21/01
CPCG01N21/01G01N21/3504
Inventor 龚爱华尚有军李淑娟吕品张金秋刘书峰
Owner BEIJING HUAGEN ANBANG TECH CO LTD