Dual-light-path and multiposition modulated fluorescence excitation light source measurement method for ingredient content of solution

A fluorescence excitation, multi-position technology, used in fluorescence/phosphorescence, material excitation analysis, material analysis by optical means, etc., to solve non-destructive testing problems, improve accuracy, and suppress spectral nonlinearity.

Inactive Publication Date: 2017-10-24
GUANGDONG POLYTECHNIC NORMAL UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problem of non-destructive testing of complex solution components in packaging bags. It is efficient, simple and pollution-free. See the description below for details:

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
  • Dual-light-path and multiposition modulated fluorescence excitation light source measurement method for ingredient content of solution
  • Dual-light-path and multiposition modulated fluorescence excitation light source measurement method for ingredient content of solution
  • Dual-light-path and multiposition modulated fluorescence excitation light source measurement method for ingredient content of solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] In the method for measuring the content of solution components with dual optical path and multi-position modulated fluorescent excitation light sources provided in the embodiment of the present invention, the devices used are such as figure 2 As shown, it includes: a fluorescent excitation light source 3 , a packaging bag 5 , a displacement platform 6 , a spectrum receiving device 7 and a modulation device 9 .

[0061] Among them, it is ensured that the light outlet of the fluorescence excitation light source 3 and the incident slit of the spectrum receiving device 7 are close to the packaging bag 5, and the modulation device 9 modulates the fluorescence excitation light source 3 to emit a square wave light signal, and the fluorescence excitation light source 3 is at position a. Under two optical paths, namely: position a (corresponding to the first optical path 1) and position a' (corresponding to the second optical path 2), the complex solution sample in the packaging...

Embodiment 2

[0070] The only difference between the embodiment of the present invention and the embodiment 1 is that the movement of the fluorescence excitation light source 3 and the spectrum receiving device 7 is different, as described in the following description:

[0071] see image 3 , to ensure that the light exit port of the fluorescent excitation light source 3 and the incident slit of the spectrum receiving device 7 are close to the packaging bag 5, the modulation device 9 modulates the fluorescent excitation light source 3 to emit a square wave light signal, and the fluorescent excitation light source 3 is used for the packaging bag 5. The complex solution sample is excited, and the spectrum receiving device 7 collects the fluorescence spectra at the position a under the dual optical path, namely: the position a and the position a'. The spectrum receiving device 7 is controlled by the displacement platform 6 to move to the position b, and the fluorescence spectrum at the double ...

Embodiment 3

[0076] During the specific implementation, due to the limitation of the space structure, it may happen that the fluorescence excitation light source 3 and the spectrum receiving device 7 cannot be closely attached to the packaging bag 5. In this case, an optical fiber can be arranged at the fluorescence excitation light source 3 and the spectrum receiving device 7 respectively. , as the incident fiber 4 and the output fiber 8 .

[0077] see Figure 4 The modulation device 9 modulates the fluorescence excitation light source 3 to emit a square wave light signal. The fluorescence excitation light source 3 excites the complex solution sample in the packaging bag 5 through the incident optical fiber 4, and the spectrum receiving device 7 collects the fluorescence spectrum through the outgoing optical fiber 8. The optical fiber 4 and the outgoing optical fiber 8 are respectively close to the packaging bag 5, the incident optical fiber 4 is at the position a, and the fluorescence ex...

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 discloses a method for measuring the component content of a solution by modulating a fluorescent excitation light source with two optical paths and multiple positions, which comprises the following steps: the light exit port of the fluorescent excitation light source and the incident slit of the spectrum receiving device are closely attached to the packaging bag, and the modulation device adjusts the fluorescent The excitation light source is modulated, the fluorescence excitation light source excites the complex solution, and the spectrum receiving device collects the fluorescence spectrum; the displacement platform controls the fluorescence excitation light source to move to different positions, and transforms the fluorescence spectra collected under the dual optical path at multiple positions into the frequency domain Construct the fluorescence spectrum in the frequency domain, normalize the fluorescence spectrum in multiple frequency domains, compare with the results of the existing chemical analysis, and establish a mathematical model; After transforming to the frequency domain to construct the fluorescence spectrum in the frequency domain, normalize it and bring it into the mathematical model to obtain the content of the target components measured in the complex solution.

Description

technical field [0001] The invention relates to the field of chemical measurement of spectral complex solution concentration analysis, in particular to a method for measuring the content of solution components by a dual optical path and multi-position modulation fluorescent excitation light source. Background technique [0002] In the prior art, the relatively mature technology is to detect the content of the target components measured by the complex solution in the bag by chemical inspection, which has the outstanding advantage of high accuracy, but the chemical inspection method requires opening the packaging bag and taking out the sample for testing, which cannot be used. Meet the needs of fast, non-contact and pollution-free. [0003] The study found that fluorescence spectroscopy measurement may also realize the content detection of target components measured in complex solutions in packaging bags due to its non-contact, non-polluting and highly targeted characteristics...

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): G01N21/64
CPCG01N21/64G01N2021/6421
Inventor 罗永顺林凌李刚
Owner GUANGDONG POLYTECHNIC NORMAL UNIV
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