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

Integration grating Fourier spectrometer

A spectrometer and Fourier technology, applied in the direction of interference spectroscopy, color/spectral characteristic measurement, spectrum investigation, etc., can solve the problems of slow measurement speed and complex structure

Inactive Publication Date: 2009-02-11
TIANJIN UNIV
View PDF5 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the contrary, the Fourier spectrometer has the characteristics of high sensitivity, but requires precise moving parts, complex structure, and slow measurement speed

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
  • Integration grating Fourier spectrometer
  • Integration grating Fourier spectrometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Such as figure 1 As shown, a stepped reflective grating surface is made on two adjacent transmission surfaces of a right-angle beam splitter prism, and the two planes form an angle with each other. This angle is an acute angle approximately at a right angle, greater than 89° and less than 90°, for example Take 89.5°, the beam splitting surface bisects this angle; the measured parallel light is divided into two parts by the right angle beam splitting prism 1, and one part passes through the beam splitting surface and reaches the plane B of the right angle beam splitting prism, plane B is a stepped reflection grating, this part The light has different optical path differences after being reflected on the plane B, and reaches the array photosensitive device 2 after passing through the beam splitting surface; the other part of the light is reflected by the beam splitting surface and reaches the plane A of the beam splitting prism, and the plane A is also a stepped reflection...

Embodiment 2

[0020] Such as figure 2 As shown, a stepped reflective grating surface is made on two adjacent transmission surfaces of a right-angle beam splitter prism, and the two planes form an angle with each other, and the angle is an obtuse angle, which is greater than 90° and less than 91°, for example, 90.5° , the beam-splitting plane bisects the included angle; the measured parallel light is divided into two parts by the right-angle beam-splitting prism 1, and one part passes through the beam-splitting surface and reaches the plane B of the right-angle beam-splitting prism. Plane B is a stepped reflection grating. B has different optical path differences after reflection, and reaches the array photosensitive device 2 after passing through the beam splitting surface; another part of light is reflected by the beam splitting surface and reaches plane A of the right-angle beam splitting prism, plane A is also a stepped reflection grating, this part of light It also has different optica...

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

No PUM Login to View More

Abstract

The invention relates to the technical field of the optical spectrum instrument and provides an integrated grating Fourier spectrometer, which comprises a beam splitter prism and an array photosensor. The beam splitter prism is a beam splitter prism close to the right angle, and comprises a first adjacent plane and a second adjacent plane. A beam splitter plane divides an included angle formed between two planes and close to the right angle but not right angle. The difference between the included angle and the right angle is less than 1 degree. Both the first plane (A) and the second plane (B) are stepped reflection grating planes. A parallel light to be measured is divided into two parts after reaching the beam splitter prism. One part reaches the second plane (B) after transmitting the beam splitter plane, is reflected by the second plane and then reflected by the beam splitter plane to the array photosensor. The other part is reflected by the beam splitter plane, reaches the first plane (A), is reflected by the beam splitter plane, and transmits the beam splitter plane to reach the array photosensor. The spectrometer of the invention has the advantages of extremely simple structure, high speed, stability, reliability, high sensitivity, high resolution and no requirement for moving parts.

Description

technical field [0001] The invention relates to a scientific instrument, especially a spectroscopic instrument. Background technique [0002] A spectrometer is an important and commonly used scientific instrument for precise analysis of light sources and substances. In order to improve the analytical sensitivity, precision and speed of the instrument, some people continue to use new technologies and devices to improve the spectrometer. [0003] For example, the invention patent designed by Wang Kemin (CCD grating integrated full-wavelength spectrometer, patent number CN01114410.6), the invention patent designed by Wen Zhiyu (integrated micro-spectrometer, patent number CN02119512.9), the invention patent designed by Yuan Hongfu ( On-line near-infrared spectrometer, application number CN02125852.X), an invention patent designed by Liu Muqing (handheld spectrometer, application number CN01254633.X), an invention patent designed by Liu Muqing and others (a near-infrared spectr...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/45G01N21/25
Inventor 李刚林凌许荣杰张凤美何娟赵凯邢贺新
Owner TIANJIN UNIV
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