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

Optical fiber SPR sensing head

A sensor head and optical fiber technology, applied in the field of optical fiber SPR sensor head, can solve the problems of poor stability, limited measurement range of total reflection principle of grazing incidence method, large demand for liquid, etc., achieve high accuracy, eliminate external strong Effects of interference and high sensitivity

Inactive Publication Date: 2020-06-12
SHANGHAI UNIVERSITY OF ELECTRIC POWER
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods all can measure the solution refractive index, but also have some shortcomings, such as: the Abbe instrument can only measure the transparent liquid refractive index; Although the precision of Young's interferometry is high, the stability is poor; the total reflection principle limitation of the grazing incidence method Its measurement range is limited; the laser irradiation method has a wide measurement range but requires a large amount of liquid during measurement

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
  • Optical fiber SPR sensing head
  • Optical fiber SPR sensing head

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] In order to make the technical means and effects realized by the present invention easy to understand, the present invention will be described in detail below in conjunction with the embodiments and accompanying drawings.

[0014] figure 1 It is a structural schematic diagram of the optical fiber SPR sensor head in the embodiment of the present invention.

[0015] Such as figure 1 As shown, an optical fiber SPR sensing head 100 of this embodiment includes: a tapered optical fiber 10 , a gold film 20 and a barium titanate film 30 .

[0016] The tapered optical fiber 10 is a polymer tapered optical fiber, and the tapered optical fiber is a polymer tapered optical fiber, which is based on a tapered optical fiber. cutting edge. The light at the sensing position at the end of the fiber will carry the refractive index information of the external substance and reflect back to the original incident end.

[0017] In this embodiment, the production principle of the polymer ta...

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an optical fiber SPR sensing head, which comprises a conical optical fiber; a gold film which is plated on the outer surface of the conical optical fiber; and a barium titanatefilm plated on the surface of the gold film. The optical fiber SPR sensing head has two working modes, in one mode, compared with a traditional SPR sensor, the optical fiber SPR sensing head is highin measurement sensitivity, in addition, in the other mode, the sensor can work in a complex measurement environment, external error interference can be effectively overcome, and the measurement accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of liquid refractive index detection and the like, and in particular relates to an optical fiber SPR sensor head. Background technique [0002] Refractive index is an inherent property of matter and an important basis for analyzing material information. Refractive index detection has penetrated into many fields such as gas composition analysis, food safety, environmental monitoring, biological analysis and medical detection, making it of great significance to achieve high-quality refractive index detection. At present, the methods used to measure the refractive index of solutions include: optical fiber Abbe refraction method, Young's interferometry, grazing incidence method, laser irradiation method, etc. These methods all can measure the solution refractive index, but also have some shortcomings, such as: the Abbe instrument can only measure the transparent liquid refractive index; Although the precision o...

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): G01N21/41
CPCG01N21/41
Inventor 初凤红李婧临夏章聪
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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