GSA near-infrared spectrometer optical path switching technology

Abstract

The invention discloses a GSA near-infrared spectrometer optical path switching technology, and mainly relates to the technical field of detection, the GSA near-infrared spectrometer optical path switching technology comprises a light source, an optical fiber, an optical switch structure, a GSA detector and a sample flow cell; the optical switch structure comprises a matrix support, a specially-made optical channel A and a specially-made optical channel B are arranged in the matrix support, and a metal separation blade is arranged in the middle of the matrix support. When the spectrograph performs reference background measurement, the optical channel A is opened, the optical channel B is closed through the metal separation blade, light emitted by the light source reaches the optical channel A through the optical fiber A and then reaches the GSA detector through the optical fiber C, and when the spectrograph performs sample measurement, the optical channel A is closed through the metalseparation blade, the optical channel B is opened, and light emitted by the light source reaches the optical channel B through the optical fiber B; and the light reaches the sample flow cell through the optical fiber E, and the light passing through the sample flow cell reaches the GSA detector through the optical fiber D.

Description

technical field [0001] The invention mainly relates to the technical field of detection, in particular to an optical path switching technology of a GSA near-infrared spectrometer. Background technique [0002] The optical path system of the traditional near-infrared spectrometer generally uses a moving mirror or a beam splitter as the optical path switching element. When the spectrometer measures the sample, the moving mirror is in the horizontal direction, and the light emitted by the light source passes through the spectroscopic system and then reaches the sample flow cell, passing through the sample. The light from the flow cell reaches the detector. The optical energy transmission process of this detection technology has a large loss, and at the same time, the existence of the moving mirror mechanical rotating parts will cause a certain amount of mechanical wear, which affects the accuracy of the optical path, and requires regular maintenance and calibration. [0003] O...

AI Technical Summary

Problems solved by technology

Using optical fiber as the light path of the spectrometer, making an optical switch suitable for the system to reduce the loss of light energy can improve the detection accuracy of the near-infrared spectrometer, but further research is still needed on the fabrication and design of optical fiber and the design of the optical switch

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