Triangular structure-based long range spectral absorption cell

Abstract

The invention discloses a triangular structure-based long range spectral absorption cell. The triangular structure-based long range spectral absorption cell comprises a triangular pedestal and a triangular sealing top cover which are mutually correspondingly arranged and folded, the middle portions of the triangular pedestal and a triangular sealing top cover are respectively provided with mounting holes used for mounting an inlet joint and an outlet joint, a triangular reflector composed of a first reflection mirror, a second reflection mirror and a third reflection mirror is arranged between the triangular pedestal and the triangular sealing top cover, the first reflection mirror is provided with light transmission holes, and the triangular reflector, the triangular pedestal and the triangular sealing top cover are mounted in a sealing manner through triangular sealing gaskets at two sides of the triangular reflector. The long range spectral absorption cell effectively avoids the interference effect of lights, fully uses the effective mirror area of the reflector, and substantially improves the reflection frequency of the lights in the absorption cells, so the effective absorption light distance of the lights is realized; and the absorption cell has the advantages of light integral weight, small size, low consumption of a sampled gas, fast gas flow response speed, simplicity in light distance adjustment, and low cost.

Description

[0001] Technical field: [0002] The invention relates to the field of photoelectric detection technology such as laser spectrum technology, and mainly relates to a long-range spectral absorption cell based on a triangular structure. [0003] Background technique: [0004] With the rapid development of the global industrialization process, the problem of environmental pollution has become increasingly serious, which seriously threatens people's health. At present, the global environment and climate change have become a common concern of all countries in the world, and it is also a hot and frontier topic in the fields of ecology, biogeochemistry and environmental science. Quantitatively studying the content of greenhouse gases or trace gases in the atmosphere will help us predict their future trends and climate change. Laser absorption spectroscopy has the advantages of high sensitivity, high precision, high selectivity, and fast response, and has been widely used in industries...

AI Technical Summary

Problems solved by technology

The design of this type of long-range absorption pool generally has various shortcomings such as low utilization of the effective area of ​​the mirror, or large volume and complex optical path adjustment, which makes it difficult to obtain a high number of reflections in a miniaturized structure, and is not conducive to portable sensor systems. integrated

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