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

A method for quantitative analysis of mixtures based on terahertz spectroscopy

A technique of quantitative analysis and mixture, applied in the field of terahertz spectroscopy, can solve the problems of inaccurate quantitative analysis results and achieve the effect of improving accuracy and good application effect

Inactive Publication Date: 2017-04-26
HENAN UNIVERSITY OF TECHNOLOGY
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for quantitative analysis of mixtures based on terahertz spectrum, so as to solve the problem of inaccurate quantitative analysis results due to the use of linear regression algorithm when using terahertz absorption spectrum for quantitative analysis.

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
  • A method for quantitative analysis of mixtures based on terahertz spectroscopy
  • A method for quantitative analysis of mixtures based on terahertz spectroscopy
  • A method for quantitative analysis of mixtures based on terahertz spectroscopy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0028] The present invention uses terahertz spectrum to quantitatively analyze the concentration of each component in the mixture, considering the influence caused by the scattering effect, and uses the genetic algorithm to quantitatively analyze the concentration of each component in the mixture to overcome the quantitative analysis accuracy caused by the linear regression algorithm low problem. First, randomly generate a population composed of a certain number of individuals, each of which is represented by a binary string structure data, this process is called coding (Coding); then define the fitness function of the population according to the target problem, and calculate the fitness of each individual degree value; and then through three operations of selection (Selection), crossover (Crossover) and mutation (Mutation) to obtain the off...

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 a mixture quantitative analysis method based on terahertz spectroscopy, and belongs to the technical field of application of terahertz spectroscopy. The method comprises the following steps that fitness functions are built according to a scattering effect contained in terahertz absorption spectrum of a mixture; an initial population with the size of N can be generated at random and the fitness of each individual in the initial population is calculated by using the built fitness functions; genetic manipulation of the population is carried out to acquire a filial generation population and an evaluation is given by the fitness functions; with a set convergence condition as an end condition of the genetic manipulation, the individual with the maximum fitness value is picked out and used as the optimal solution of the concentrations of the all components of the mixture. According to the method, when the fitness functions are built, the influence caused by the scattering effect is fully taken into consideration, so that the quantitative analysis accuracy is obviously improved, and a good application effect is achieved. Meanwhile, the verification is carried out through a quantitative analysis experiment, so that the accurate quantitative analysis on the concentration of the mixture can be realized.

Description

technical field [0001] The invention relates to a quantitative analysis method for a mixture based on terahertz spectroscopy, which belongs to the technical field of terahertz spectroscopy applications. Background technique [0002] Terahertz (1THz=10 12 Hz) waves, as a band in the electromagnetic spectrum, have not been deeply developed and utilized for a long time due to the lack of effective sources and detection devices, so that they have been called "terahertz gap" for a long time. With the development of ultrafast laser technology, various sources and detection devices for terahertz waves have emerged, and terahertz time-domain spectroscopy technology has also developed rapidly, and has been widely used in pharmaceuticals, drug detection, explosives detection and security inspection shows unique advantages. [0003] Quantitative analysis based on terahertz absorption spectrum is one of the most important applications of terahertz technology. At present, the most wid...

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 Patents(China)
IPC IPC(8): G01N21/3581G06F19/00
Inventor 李智
Owner HENAN UNIVERSITY OF TECHNOLOGY
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