CN103018186A - Optical fiber sensing gas detection device - Google Patents
Optical fiber sensing gas detection device Download PDFInfo
- Publication number
- CN103018186A CN103018186A CN 201210527333 CN201210527333A CN103018186A CN 103018186 A CN103018186 A CN 103018186A CN 201210527333 CN201210527333 CN 201210527333 CN 201210527333 A CN201210527333 A CN 201210527333A CN 103018186 A CN103018186 A CN 103018186A
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- lens
- optical fiber
- gas
- air chamber
- detection device
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Abstract
The invention discloses an optical fiber sensing gas detection device which comprises a gas chamber. A gas inlet is arranged on one side of the gas chamber, and a gas outlet is arranged on the other side of the gas chamber. The gas chamber is internally provided with a first lens and a second lens which are opposite. The first lens is connected with a light source outside the gas chamber through input optical fiber, and the second lens is connected with a Bragg grating outside the gas chamber through output optical fiber. A reflector is matched with the Bragg grating. The reflector is matched with a display instrument through a photoelectric converter. According to the optical fiber sensing gas detection device provided by the invention, compared with the prior art, light transfer is utilized, so that the optical fiber sensing gas detection device is high in precision, small in error, simple in overall structure, small in occupied space, easy to operate and control, and low in manufacturing cost.
Description
Technical field
The present invention relates to a kind of gas-detecting device, particularly a kind of Gas Optical Fiber Sensor pick-up unit.
Background technology
Comprise borehole operation that chemical industry, coal are produced etc. to the detection of gas in industrial processes, the concentration of at any time support control gas is extremely important, particularly hydrocarbon gas, CO gas etc.Employed pick-up unit mainly is to utilize the variation of resistance, electric capacity to detect when at present gas being detected, and one-piece construction is cumbersome, and accuracy of detection is poor, operation is inconvenient.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, cost is low, good operation, easy to control, detect accurately Gas Optical Fiber Sensor pick-up unit, overcome the deficiencies in the prior art.
Gas Optical Fiber Sensor pick-up unit of the present invention, comprise air chamber, one side of air chamber is provided with air intake opening, opposite side is provided with the gas outlet, be provided with relative first lens and the second lens in air chamber, first lens joins by the light source in input optical fibre and the air chamber outside, and the second lens join by the Bragg grating in output optical fibre and the air chamber outside, be furnished with mutually catoptron with Bragg grating, anti-body mirror matches by photoelectric commutator and Displaying Meter.
Gas Optical Fiber Sensor pick-up unit of the present invention has compared with prior art utilized the transmission of light, and precision is high, and error is little, and one-piece construction is simple, and it is little to take up room, and good operation is easy to control, low cost of manufacture.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment of the invention.
Embodiment
As shown in Figure 1: 6 air chambers, air chamber 6 is by the sheet metal welding production.One side of air chamber 6 is welded with air intake opening 12, opposite side is welded with gas outlet 9, in air chamber 6, by stent support relative first lens 7 and the second lens 8 are arranged, first lens 7 joins by the light source 4 of input optical fibre 5 with air chamber 6 outsides, the second lens 8 join by the Bragg grating 11 of output optical fibre 10 with air chamber 6 outsides, be furnished with mutually catoptron 3 with Bragg grating 11, anti-body mirror 3 matches by photoelectric commutator 2 and Displaying Meter 1.
Claims (1)
1. Gas Optical Fiber Sensor pick-up unit, it is characterized in that: comprise air chamber (6), one side of air chamber (6) is provided with air intake opening (12), opposite side is provided with gas outlet (9), in air chamber (6), be provided with relative first lens (7) and the second lens (8), first lens (7) joins by the light source (4) of input optical fibre (5) with air chamber (6) outside, the second lens (8) join by the Bragg grating of output optical fibre (10) with air chamber (6) outside, be furnished with mutually catoptron (3) with Bragg grating, anti-body mirror (3) matches by photoelectric commutator (2) and Displaying Meter (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210527333 CN103018186A (en) | 2012-12-10 | 2012-12-10 | Optical fiber sensing gas detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210527333 CN103018186A (en) | 2012-12-10 | 2012-12-10 | Optical fiber sensing gas detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103018186A true CN103018186A (en) | 2013-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210527333 Pending CN103018186A (en) | 2012-12-10 | 2012-12-10 | Optical fiber sensing gas detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103018186A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406930A (en) * | 2014-12-04 | 2015-03-11 | 天津大学 | Spectral analysis-based traditional Chinese medicine auscultation device |
| CN107478577A (en) * | 2017-08-08 | 2017-12-15 | 江苏中能光电技术有限公司 | Multiplexing fiber-optic gas sensing system based on weak optical fiber Bragg grating and optical time domain reflectometer |
-
2012
- 2012-12-10 CN CN 201210527333 patent/CN103018186A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406930A (en) * | 2014-12-04 | 2015-03-11 | 天津大学 | Spectral analysis-based traditional Chinese medicine auscultation device |
| CN107478577A (en) * | 2017-08-08 | 2017-12-15 | 江苏中能光电技术有限公司 | Multiplexing fiber-optic gas sensing system based on weak optical fiber Bragg grating and optical time domain reflectometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |