Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Near-infrared polarization interferometer spectrometer

A spectrometer and near-infrared technology, applied in the field of optical instruments, can solve the problems of high maintenance and use cost, complexity, high price, etc., and achieve the effects of enhanced shock resistance and processability, miniaturization, and light weight.

Active Publication Date: 2014-07-02
重庆中科摇橹船信息科技有限公司
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Michelson interferometric spectrometer technology is mature and has the advantages of high throughput and high resolution. However, the Michelson interferometer is very sensitive to external vibrations due to its dual-branch structure and the existence of a moving plane mirror, and the requirements for the use environment are too harsh. It is necessary to take a lot of anti-shock measures in the structural design, which makes the whole system too large and complex, so the price is expensive, and the maintenance and use costs are also very high, which is not conducive to the large-scale application of near-infrared spectral analysis technology in process control and online measurement
Due to the existence of slits in the grating spectrometer, the luminous flux is insufficient

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Near-infrared polarization interferometer spectrometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] see figure 1 , a near-infrared polarization interference spectrometer, comprising a light source group arranged in sequence along the direction of the optical path, a collimating off-axis parabolic mirror 2, a first cold light mirror 3, a polarizing prism 5, a compensation crystal 6, a scanning wedge assembly 7, and a polarization analyzer Prism 8, second cold light mirror 9, converging off-axis parabolic mirror 10 and detector; the light source group includes a halogen tungsten lamp 1 directly coupled out through a single-mode optical fiber and a He-Ne laser 4 for emitting a calibration light source; the detector includes Silicon detector 13 and InGaAs detector 14; the wide-spectrum near-infrared beam emitted by the halogen tungsten lamp 1 is collimated by the collimated off-axis parabolic mirror 2 to become parallel light and passed through the first cold mirror 3 and the He-Ne laser 4 emitted Convergence of light beams; the combined light beams pass through the polar...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Wavelengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a near-infrared polarization interferometer spectrometer. The near-infrared polarization interferometer spectrometer comprises a light source group, a collimation off-axis parabolic mirror, a first cold light mirror, a polarizing prism, a compensation crystal, a scanning optical wedge component, an analyzing prism, a second cold light mirror, a convergence off-axis parabolic mirror and a detector which are arranged in sequence in the light-path direction. The light source group comprises a halogen tungsten lamp which carries out direct coupling output through a single mode fiber and a He-Ne laser device for sending a calibration light source. The detector comprises a silicon detector and an InGaAs detector. The near-infrared polarization interferometer spectrometer is simple in structure.

Description

technical field [0001] The invention belongs to the field of optical instruments and relates to near-infrared spectrum technology, in particular to a near-infrared polarization interference spectrometer. Background technique [0002] The near-infrared spectrum (780-2526nm) is generated when the molecular vibration transitions from the ground state to a high energy level due to the non-resonant nature of the molecular vibration. The double frequency and combined frequency absorption of different groups or the same group in different chemical environments have obvious differences in the near-infrared absorption wavelength and intensity, so the near-infrared spectrum contains a wealth of material structure and composition information. Through the organic combination of near-infrared spectrometers, chemometric software and calculation models, substances (including solid, liquid and gas) can be quantitatively tested and analyzed quickly and accurately. The core of near-infrared ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01J3/45G01J3/02
Inventor 谢正茂韦明智何俊华薛艳博齐文博
Owner 重庆中科摇橹船信息科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com