Interferometer and spectrograph

Abstract

The present invention provides an interferometer and a spectrograph. The interferometer includes a shell, a laser, a beam splitter, a plane mirror and a moving mirror scanning mechanism; the laser and the beam splitter are fixed on the shell; the plane mirror is used for reflecting a light beam; the moving mirror scanning mechanism includes a bracket, a swing arm, a pivot shaft, a first angle mirror, a second angle mirror and a driving device, wherein the bracket is fixed onto the shell, the swing arm is connected onto the bracket through the pivot shaft, the first angle mirror and the second angle mirror which are used for refracting the light beam reflected by the plane mirror are fixed on the swing arm and are symmetrically distributed at two sides of the beam splitter, and the driving device is connected with the swing arm. The spectrograph includes an interferometer, an infrared light source and a parabolic mirror. The interferometer and spectrograph of the invention have the advantages of high environment adaptability, compact structure, small size, light weight, high stability, low cost and the like, and can be applied to industrial field environments.

Description

technical field [0001] The invention belongs to the technical field of spectrometers, in particular to an interferometer and a spectrometer including the interferometer. Background technique [0002] The most important application of infrared spectroscopy is the structural identification of compounds. Through the relationship between the spectrum and the molecular structure and comparison with the standard spectrum, the structure of the compound can be determined, such as whether there are certain functional groups, cis-trans isomerism, and the position of the substituent. , hydrogen bonding and complex formation. The Fourier Transform Infrared Spectrometer is the most important instrument for infrared spectrum detection. The Fourier Transform Infrared Spectrometer can analyze any form of sample (solid, liquid or gas sample), and can analyze pure substances or multiple components of a single component. It is widely used in environmental monitoring, biochemical industry, med...

AI Technical Summary

Problems solved by technology

[0006] Since the state (position and angle) of the optical device in the interferometer is at the interference level of light, for the optical device in the interferometer, fluctuations at the nanometer level and arc-second level will affect the interference efficiency of the interferometer. Therefore, the performance of the analyzer is reduced, and ensuring the accuracy of the interferometer is one of the key issues in this field

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