Unlock instant, AI-driven research and patent intelligence for your innovation.

A Method for Simultaneously Measuring Temperature and Material Strain Using Core Bubble Optical Fiber

A technology for measuring temperature, optical fiber, applied in the field of sensor measurement

Active Publication Date: 2018-09-21
BEIJING INFORMATION SCI & TECH UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, for the application of the bubble fiber to the measurement of a single temperature or material strain

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 Simultaneously Measuring Temperature and Material Strain Using Core Bubble Optical Fiber
  • A Method for Simultaneously Measuring Temperature and Material Strain Using Core Bubble Optical Fiber
  • A Method for Simultaneously Measuring Temperature and Material Strain Using Core Bubble Optical Fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The objects and functions of the present invention and methods for achieving the objects and functions will be clarified by referring to the exemplary embodiments. However, the present invention is not limited to the exemplary embodiments disclosed below; it can be implemented in various forms. The essence of the description is only to help those skilled in the relevant art comprehensively understand the specific details of the present invention.

[0030] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals represent the same or similar components, or the same or similar steps. In the following embodiments, during the detailed description of a method for simultaneously measuring temperature and material strain using a core bubble optical fiber according to the present invention, some relevant technical terms should be understood by those skilled in the art.

[0031...

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 method utilizing core bubble fibers to simultaneously measuring temperature and material strain. The method comprises steps that a), groove processing at core end surfaces of two fibers is carried out; b), the end surfaces of the two fibers with grooves acquired through the step a) are mutually welded, the two welded end surfaces mutually correspond to each other, the grooves generate expansion during a welding process, the core position generates bubbles, and the core bubble fibers are acquired; c), the core bubble fibers are welded with a fiber grating to carry out temperature calibration and material strain calibration; d), wavelength shift of the core bubble fibers and the fiber grating is acquired, a relationship curve of the wavelength shift and change of the temperature and the material strain is acquired through fitting; and e), the temperature and the material strain of a to-be-measured environment are measured through utilizing the relationship curve of the step d).

Description

technical field [0001] The invention relates to the technical field of sensor measurement, in particular to a method for simultaneously measuring temperature and material strain by using a core bubble optical fiber. Background technique [0002] The all-fiber sensor has the advantages of compact structure, long service life, sensitivity to test volume, and multiple transmission channels, and is widely used in optical fiber sensing, optical fiber communication, optical processing and other fields. Through the micro-machining technology of the fiber end face or building an all-fiber sensor with an interference structure, under the action of the pump source, an interference spectrum curve with a comb-like spectrum pattern is output. The thin-core optical fiber Mach-Zehnder optical fiber sensor has a simple structure and is easy to implement. The structure consists of a thin-core optical fiber welded to two relatively thick core-diameter doped rare-earth optical fibers. The dope...

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): G01D21/02G01D5/353G01D5/38
CPCG01D5/3538G01D5/38G01D21/02
Inventor 祝连庆何巍董明利娄小平庄炜李红张雯
Owner BEIJING INFORMATION SCI & TECH UNIV