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

Fabrication method of film-coated optical fiber carbon monoxide sensor, sensor and detection method of carbon monoxide concentration

A carbon monoxide and production method technology, applied in the field of gas sensing, can solve the problems of easy damage, poor device consistency and reusability, and achieve the effects of easy production, light weight and fast response time

Active Publication Date: 2020-08-18
CHONGQING UNIV OF TECH
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sintered type and the thick film type are to smear the sensitive material slurry on the ceramic tube or imprint it on the ceramic substrate. The feature size of the manufactured device is usually on the order of hundreds of microns to millimeters, so the microstructure of the material is easily destroyed during processing. Destruction, resulting in less consistent and reusable devices

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
  • Fabrication method of film-coated optical fiber carbon monoxide sensor, sensor and detection method of carbon monoxide concentration
  • Fabrication method of film-coated optical fiber carbon monoxide sensor, sensor and detection method of carbon monoxide concentration
  • Fabrication method of film-coated optical fiber carbon monoxide sensor, sensor and detection method of carbon monoxide concentration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The manufacture method of the film-coated optical fiber carbon monoxide sensor in this specific embodiment comprises the following steps:

[0032] 1) Obtain a thin-core optical fiber and two single-mode optical fibers, the core diameter of the thin-core optical fiber is smaller than the core diameter of the single-mode optical fiber, and respectively weld the two single-mode optical fibers to the two ends of the thin-core optical fiber;

[0033] 2) Configure Co 3 o 4 -PANI-CuO composite sol, add copper oxide powder into 0.05mol / L aminobenzenesulfonic acid solution according to the mass ratio of 0.38:0.3 and stir until it is configured into a dispersion, then add aniline monomer with a concentration of 99% to it , the mass ratio of the aniline monomer to the dispersion liquid is 2:7, and stir evenly to obtain the configuration liquid I; then add the tricobalt tetroxide powder into the ammonium persulfate solution of 0.15mol / L according to the mass ratio of 0.44:1.1, and...

Embodiment 2

[0054] This specific embodiment, as another method for making a film-coated optical fiber carbon monoxide sensor in the present invention, includes the following steps:

[0055] 1) Obtain a thin-core optical fiber and two single-mode optical fibers, the core diameter of the thin-core optical fiber is smaller than the core diameter of the single-mode optical fiber, and respectively weld the two single-mode optical fibers to the two ends of the thin-core optical fiber;

[0056] 2) Configure Co 3 o 4 -PANI-CuO composite sol, add copper oxide powder into 0.04mol / L aminobenzenesulfonic acid solution according to the mass ratio of 0.37:0.1 and stir until it is configured into a dispersion, and then add aniline monomer with a concentration of 99% to it , the mass ratio of the aniline monomer to the dispersion liquid is 2:5, and stir evenly to obtain the configuration liquid I; then add the tricobalt tetroxide powder into the ammonium persulfate solution of 0.05mol / L according to the...

Embodiment 3

[0059] This specific embodiment, as another method for making a film-coated optical fiber carbon monoxide sensor in the present invention, includes the following steps:

[0060] 1) Obtain a thin-core optical fiber and two single-mode optical fibers, the core diameter of the thin-core optical fiber is smaller than the core diameter of the single-mode optical fiber, and respectively weld the two single-mode optical fibers to the two ends of the thin-core optical fiber;

[0061] 2) Configure Co 3 o 4 -PANI-CuO composite sol, add copper oxide powder into 0.07mol / L aminobenzenesulfonic acid solution according to the mass ratio of 0.39:0.4 and stir until it is configured into a dispersion, and then add aniline monomer with a concentration of 100% to it , the mass ratio of the aniline monomer to the dispersion liquid is 2:9, and stir evenly to obtain the configuration liquid I; then add the tricobalt tetroxide powder into the ammonium persulfate solution of 0.25mol / L according to th...

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
wavelengthaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a film-covered optical fiber CO sensor, the sensor prepared with the method and a CO concentration detection method. The effective refractive index of acovering layer is changed by adsorbing CO gas with a sensitive film cladding the optical fiber covering layer, so that frequency shift occurs to interference spectrum, and the purpose of gas concentration detection is achieved. In the CO gas concentration range of 0-100 ppm, with increase of the concentration, the spectrum of the sensor has a blue shift phenomenon, and the sensor has good linearity and selectivity. The gas sensor is easy to prepare and low in preparation cost and cannot be damaged easily in the processing process; the prepared gas sensor has the advantages of high detection sensitivity, short response time, small size and light weight.

Description

technical field [0001] The invention relates to the field of gas sensing, in particular to a method for manufacturing a film-coated optical fiber carbon monoxide sensor, the sensor, and a method for detecting carbon monoxide concentration. Background technique [0002] With the continuous development of social economy and the continuous improvement of industrial technology level, the types of products are constantly increasing, and the types and quantities of gas raw materials used in production and waste gases generated during production are also increasing. Toxic and harmful exhaust gas discharged with the occurrence of major catastrophic accidents in the industry will also cause damage to people's lives and health. Among them, carbon monoxide (CO) gas poisoning ranks first in gas poisoning. Carbon monoxide is a colorless, odorless, and tasteless gas, so it is easy to ignore and cause poisoning. The reason for carbon monoxide poisoning is that after carbon monoxide enters...

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): G01N21/25
CPCG01N21/25
Inventor 冯文林邓大申杨晓占彭进王茂琴袁苗
Owner CHONGQING UNIV OF TECH