Weak light signal spectrum fast test device and method

A weak light and spectrum technology, applied in spectrum investigation and other directions, can solve the problems of complex structure of interference spectrum measurement system, inability to meet real-time and rapid on-site measurement, increase measurement time, etc., achieve fast measurement speed, remove random errors, improve intensity effect

Active Publication Date: 2015-02-11
西安应用光学研究所
View PDF5 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Spectral measurement systems can generally be divided into two types: interferometric spectral measurement systems and spectroscopic spectral measurement systems. Among them, the interferometric spectral measurement system obtains the spectral information of signal light through Fourier transform, which is especially suitable for the detection of weak optical signals, but in practical applications Among them, the interferometric spectral measurement system has a complex structure and high cost; while the spectroscopic spectral measurement system is based on the principle of prism or grating, which separates the light to be measured by wavelength, detects optical signals of different wavelengths, and obtains the spectral characteristics of the signal. Usually, linear array CCD

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
  • Weak light signal spectrum fast test device and method
  • Weak light signal spectrum fast test device and method
  • Weak light signal spectrum fast test device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with preferred embodiments.

[0022] In order to realize the rapid measurement of the spectrum of the weak light signal, the general idea of ​​the present invention is to use the area array CCD to measure the spectrum of the weak light signal multiple times at the same time, improve the measurement speed, and then superimpose the multiple measurement results to increase the output signal The strength of the signal-to-noise ratio is improved, and finally the measurement results are normalized. In this way, the accurate measurement of the relative spectral power distribution of the weak optical signal is realized, which meets the requirement of rapid measurement of the spectrum of the weak optical signal.

[0023] The rapid test device for weak optical signal spectrum in this embodiment includes an optical platform, a standard lamp, a grating spectroscopic system, a spectral data acquisition sy...

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 provides a weak light signal spectrum fast measuring device and method. On the basis of a light source spectrum power distribution test method of a light splitting type spectrum measurement system, a face array CCD (charge coupled device) is adopted for replacing an original line array CCD, tiny light signals can simultaneously complete multiple times of measurement, the intensity of output signals can be improved through the processing on measuring results, meanwhile, the random noise is eliminated, and the fast measurement of the tiny light signal spectrum power distribution is realized. The weak light signal spectrum fast measuring method has the advantages that the measurement speed is high, the precision is high, the operation is simple, the universality is high, and the technical support is provided for the spectrum test of other kinds of spectrum instruments.

Description

technical field [0001] The invention belongs to the field of optical measurement and testing, and mainly relates to a testing method for the spectral distribution of a light source, in particular to a rapid testing device and method for the relative spectral power distribution of weak light signals. Background technique [0002] Spectral measurement systems can generally be divided into two types: interferometric spectral measurement systems and spectroscopic spectral measurement systems. Among them, the interferometric spectral measurement system obtains the spectral information of signal light through Fourier transform, which is especially suitable for the detection of weak optical signals, but in practical applications Among them, the interferometric spectral measurement system has a complex structure and high cost; while the spectroscopic spectral measurement system is based on the principle of prism or grating, which separates the light to be measured by wavelength, dete...

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): G01J3/28
Inventor 李燕杨鸿儒卢飞占春连李正琪
Owner 西安应用光学研究所
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap