Optical Fiber Distributed Multi-parameter Sensing Measurement System

An optical fiber distribution, sensing and measurement technology, which is applied in the direction of using optical devices to transmit sensing components, can solve the problem of inability to monitor the vibration information of sensing optical fibers, and achieve the effect of avoiding requirements, maintaining coherence, and enhancing applicability.

Active Publication Date: 2017-02-22
TAIYUAN UNIV OF TECH
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing distributed optical fiber sensor cannot monitor the vibration information of the sensing optical fiber, the present invention provides an optical fiber distributed multi-parameter sensing and measuring system

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 Distributed Multi-parameter Sensing Measurement System
  • Optical Fiber Distributed Multi-parameter Sensing Measurement System

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Optical fiber distributed multi-parameter sensing and measurement system, including ultra-narrow linewidth high-power fiber laser 1, first 1*2 optical coupler 2, single sideband carrier suppression modulator 3, second 1*2 optical coupler 4, The third 1*2 optical coupler 5, the electro-optical modulator 6, the first 2*1 optical coupler 7, the polarization scrambler 8, the integrated wavelength division multiplexer 9, the sensing fiber 10, the all-fiber narrow-band low-noise bridge Deep frequency shifter 11, narrowband fiber grating transmission filter 12, second 2*1 optical coupler 13, third 2*1 optical coupler 14, first low bandwidth high gain photodetector 15, second low bandwidth high Gain photodetector 16, data acquisition and processing system 17;

[0017] Wherein, the output end of the ultra-narrow linewidth high-power fiber laser 1 is connected to the input end of the first 1*2 optical coupler 2; the first output end of the first 1*2 optical coupler 2 is connected...

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 distributed optical fiber sensing technique, in particular to a distributed optical fiber multi-parameter sensing measurement system. The distributed optical fiber multi-parameter sensing measurement system solves the problem that according to an existing distributed optical fiber sensor, vibration information of sensing optical fibers can not be monitored. The distributed optical fiber multi-parameter sensing measurement system comprises a super-narrow-linewidth high-power optical fiber laser, a first 1*2 optical coupler, a single-side-band carrier suppression modulator, a second 1*2 optical coupler, a third 1*2 optical coupler, an electrooptical modulator, a first 2*1 optical coupler, a scrambler, an integrated wavelength division multiplexer, sensing optical fibers, a full-optical-fiber narrow-band low-noise Brillouin frequency shift, a narrow-band fiber bragg grating transmission filter, a second 2*1 optical coupler, a third 2*1 optical coupler, a first low-bandwidth high-gain photoelectric detector, a second low-bandwidth high-gain photoelectric detector and a data acquisition processing system. The distributed optical fiber multi-parameter sensing measurement system is suitable for various measurement fields.

Description

technical field [0001] The invention relates to distributed optical fiber sensing technology, in particular to an optical fiber distributed multi-parameter sensing and measuring system. Background technique [0002] Distributed optical fiber sensing technology refers to the technology that uses optical fiber as the sensing element and transmission element at the same time, and can realize the measurement of temperature and strain at different positions along the entire length of the optical fiber. Compared with other optical fiber sensing technologies, distributed optical fiber sensing technology has incomparable advantages, and it has become one of the research hotspots at home and abroad. At present, based on distributed optical fiber sensing technology, various forms of distributed optical fiber sensors have been developed, among which the most widely used are distributed optical fiber Raman photon sensors and distributed optical fiber Brillouin photon sensors. However, ...

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): G01D5/353
Inventor 张明江张永宁刘毅王云才
Owner TAIYUAN UNIV OF TECH
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