Highly-stable rotating-mirror interferometer

A high-stability, interferometer technology, applied in interference spectroscopy, spectrum investigation, etc., can solve the problems of portability, complex structure, and increase the difficulty of design and development, and achieve the effect of ensuring self-stability and reducing measurement time

Active Publication Date: 2014-09-10
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

However, this kind of interferometer generally needs to be composed of a rotating mirror and multiple fixed mirrors. The structure

Method used

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  • Highly-stable rotating-mirror interferometer
  • Highly-stable rotating-mirror interferometer
  • Highly-stable rotating-mirror interferometer

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] Such as figure 1 As shown, the embodiment of the present invention provides a high stability rotating mirror interferometer, including a first beam splitter 11, a second beam splitter 12, a first plane mirror 13, a second plane mirror 14, a third plane Mirror 15, connecting mechanism 16 and tilting mirror 17:

[0030] The beam splitting film 111 of the first beam splitter 11 is parallel to the first plane mirror 13;

[0031] The second pla...

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Abstract

The invention discloses a highly-stable rotating-mirror interferometer comprising a first beam splitter, a second beam splitter, a first plane reflecting mirror, a second plane reflecting mirror, a third plane reflecting mirror, a connecting mechanism and a tilt reflecting mirror. The beam splitting film of the first beam splitter is parallel to the first plane reflecting mirror; the second plane reflecting mirror and the third plane reflecting mirror are arranged parallelly to form a parallel reflecting mirror group fixedly connected to a rotary shaft; the parallel reflecting mirror group and the connecting mechanism are fixedly arranged, and the first beam splitter, the first plane reflecting mirror and the connecting mechanism are fixedly arranged; the tilt reflecting mirror is provided with a tilt angle, and the emergent light of the parallel reflecting mirror group vertically enters the tilt reflecting mirror. The incident light and the emergent light are parallel to each other by arrangement of the pair of parallel plane mirrors, system self-stability is improved and detection time is reduced by rotation of the first plane reflecting mirror and plan mirror group, system structure is simple, and processing, mounting and adjusting difficulties and production cost are lowered.

Description

technical field [0001] The invention relates to the technical field of spectrum detection and imaging, in particular to a high-stability time-modulated double-beam interferometer. Background technique [0002] Fourier Transform Infrared Spectrometer (Fourier Transform Infrared Spectrometer, FTIR) is an instrument that uses light interference to measure the spectrum of a target. It has a series of advantages such as multi-channel, high throughput, high signal-to-noise ratio, and high precision. It has a wide range of applications in industrial and agricultural production, scientific research, environmental monitoring, food safety, aerospace remote sensing and other fields. [0003] The interferometer is the core component of FTIR, and the performance of the interferometer determines the quality of the measurement results of the instrument. At present, FTIR interferometers are usually based on Michelson interferometers and their deformation structures. The structure is usuall...

Claims

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Application Information

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IPC IPC(8): G01J3/45
Inventor 相里斌谭政方煜张文喜吕群波周志盛
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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