CN103033487B - Device for detecting gas humidity with infrared light - Google Patents
Device for detecting gas humidity with infrared light Download PDFInfo
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- CN103033487B CN103033487B CN201210580971.9A CN201210580971A CN103033487B CN 103033487 B CN103033487 B CN 103033487B CN 201210580971 A CN201210580971 A CN 201210580971A CN 103033487 B CN103033487 B CN 103033487B
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- infrared light
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Abstract
The invention discloses a device for detecting gas humidity with infrared light. The device comprises an upper cover, a lower cover and a control device, wherein a hole I is formed at the lower part of the upper cover; a hole II is formed at the upper part of the upper cover; the upper cover is in sealing connection with the lower cover by fasteners; a cavity is formed in upper cover and the lower cover; light pipes are arranged in the cavity; the two ends of the light pipes are connected with optical fibers; the optical fibers are connected with the control device; the light pipes are in sealing connection with the upper cover; a plurality of holes III are formed in the light pipes; and the control device is internally provided with an emitter for emitting the infrared light and a detector for receiving the infrared light. Test gas enters the light pipes from the holes III; moisture in the test gas absorbs light wave; and the light intensity is reduced. The device measures the gas humidity according to light intensity variations detected by the control device; the detection precision is high; the measuring range is large; the hole I and the hole II are positioned on the lower right side and the upper left side of the upper cover respectively, so that a gas passing route is extended, the test gas can sufficiently enter the light pipes, the infrared light can be absorbed sufficiently, and the testing precision is improved; and the device is simple in structure and long in service life.
Description
Technical field
The present invention relates to a kind of device that detects gas humidity, be specifically related to a kind of device with infrared light detection gas humidity.
Background technology
Moisture in gas humidity reflection gas, the impact of its health on us, life, work is far beyond our imagination.People also more and more pay attention to the detection of gas humidity.The domestic method that has multiple detection gas humidity at present, as: dynamic method, static method, dew point method, dry wet method and various electronic sensor methods etc., these methods are often applied in the larger gaseous environment of humidity, but their resolution is lower, and precision is lower.In addition, also have electrolytic sensors method, humidity sensor method etc., electrolytic sensors method can only the very low gas humidity of measuring moisture, surveys just easy damage equipment of normal air, and measurement range is lower, and range is little.Humidity sensor method humidity-sensitive element resistance tocrocking used is poor, is placed in environment to be measured, very easily contaminated, less stable.Comprehensive Correlation, the existing method of testing of Present Domestic has some limitations.
Summary of the invention
The present invention is exactly in order to solve prior art above shortcomings, and a kind of device with infrared light detection gas humidity is provided.Light pipe I, light pipe II are set in chamber, have the test gas of certain humidity to enter light pipe, hydrone can absorb infrared light, hydrone is more, and the infrared light of absorption is also more, carrys out determination test gas humidity according to the degree of infrared light decay, the method accuracy of detection is high, and range is large, long service life.
The object of the invention is to adopt following technical proposals to realize:
A kind of device with infrared light detection gas humidity, comprise upper cover, lower cover and control device, upper cover bottom is provided with hole I, top is provided with hole II, upper cover and lower cover by securing member be tightly connected, the inner chamber that forms, in chamber, be provided with light pipe, light pipe two ends are connected with optical fiber, optical fiber is connected with control device, light pipe and upper cover are tightly connected, and light pipe is provided with some hole III, are provided with the transmitter of transmitting infrared light and the detector of reception infrared light in described control device.
In described chamber, be provided with light pipe I and light pipe II, light pipe I is connected by optical fiber II with light pipe II, and light pipe I and light pipe II are connected to control device by optical fiber I and optical fiber III respectively, and light pipe I and light pipe II and upper cover are tightly connected.
Described light pipe I and light pipe II are collimating apparatus.
Described upper cover and the lower cover place of being tightly connected are provided with fluid sealant or O-ring seal.
Described hole II is located at the upper left side of upper cover, and hole I is located at the lower right side of upper cover.
Described securing member is screw or bolt.
Principle of work of the present invention: a kind of device with infrared light detection gas humidity, it comprises upper cover, lower cover and control device, on be covered with hole I, hole II, upper cover and lower cover are connected to form chamber by securing member, and seal with O-ring seal, the light pipe I being placed in chamber is connected by optical fiber II with light pipe II, light pipe I and light pipe II receive control device by optical fiber I and optical fiber III respectively, the part that light pipe I and light pipe II insert upper cover is sealed by encapsulant, light pipe I and light pipe II are provided with some hole III, and test gas can enter.Test gas is entered in chamber by hole I, and enters light pipe I, light pipe II by some hole III.There is the test gas of certain humidity to enter light pipe, hydrone can absorb infrared light, and hydrone is more, and the infrared light of absorption is also more, carry out determination test gas humidity according to the degree of infrared light decay, the present invention has opened up the new method of application infrared light detection gas humidity.In control device, the infrared light of transmitting imports light pipe into through optical fiber I, and the light wave in moisture absorption light pipe I and light pipe II in test gas, causes intensity variation, and the intensity variation recording according to control device is judged the humidity of test gas.
Advantage of the present invention is: 1, according to intensity variation, and mensurated gas composition humidity, accuracy of detection is high, and range is large; 2, hole I, hole II lay respectively at lower right side and the upper left side of upper cover, extend the route that gas passes through, and warranty test gas fully enters light pipe, fully absorbs infrared light, further improves measuring accuracy.3, simple in structure, long service life.
Brief description of the drawings
Fig. 1 is the structural drawing of embodiment of the present invention;
Wherein, 1. control device, 2. optical fiber I, 3. encapsulant, 4. upper cover, 5. light pipe I, 6. hole III, 7. chamber, 8. hole I, 9. optical fiber II, 10. lower cover, 11. optical fiber III, 12. hole II, 13. light pipe II, 14. securing members, 15. O-ring seals.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment 1:
With the device of infrared light detection gas humidity, comprise upper cover 4, lower cover 10 and control device 1, upper cover 4 bottoms are provided with hole I8, top is provided with hole II12, upper cover 4 and lower cover 10 by securing member 14 be tightly connected, the inner chamber 7 that forms, in chamber 7, be provided with light pipe, light pipe two ends are connected with optical fiber, optical fiber is connected with control device 1, light pipe and upper cover 4 are sealed and matched, and light pipe is provided with some hole III6, are provided with the transmitter of transmitting infrared light and the detector of reception infrared light in control device.In chamber 7, being provided with two light pipes is light pipe I5 and light pipe II13, light pipe I5 is connected by optical fiber II9 with light pipe II13, light pipe I5 and light pipe II13 receive control device 1 by optical fiber I2 and optical fiber III11 respectively, the coupling part that light pipe I5 and light pipe II13 insert upper cover 4 is sealed by encapsulant 3, light pipe I5 and light pipe II13 are provided with some hole III6, and test gas can enter.
Test gas is entered in chamber 7 by hole I8, and enters light pipe I5, light pipe II13 by some hole III6, and the infrared light of control device 1 interior transmitting imports light pipe I5, optical fiber II9, light pipe II13 into through optical fiber I2, then imports control device 1 into by optical fiber III11.In conductive process, test gas absorbs the light wave in light pipe I5 and light pipe II13, causes intensity variation, and the intensity variation recording according to control device 1 is judged the humidity of test gas.
Embodiment 2:
On the basis of embodiment 1, in chamber 7, be provided with 1 light pipe, control device 1 is received by optical fiber in light pipe two ends.Other,, with reference to embodiment 1, do not repeat them here.
Embodiment 3:
According to actual needs, be provided with the light pipe of multiple series connection in chamber 7, the whole story, control device 1 was received by optical fiber in two ends.Other,, with reference to embodiment 1, do not repeat them here.
By reference to the accompanying drawings the embodiment of invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendments that creative work can make or distortion still in protection scope of the present invention.
Claims (6)
1. the device with infrared light detection gas humidity, it is characterized in that, comprise upper cover, lower cover and control device, upper cover bottom is provided with hole I, top is provided with hole II, upper cover and lower cover by securing member be tightly connected, the inner chamber that forms, in chamber, be provided with light pipe, light pipe two ends are connected with optical fiber, and optical fiber is connected with control device, and light pipe and upper cover are tightly connected, light pipe is provided with some hole III, is provided with the transmitter of transmitting infrared light and the detector of reception infrared light in described control device.
2. a kind of device with infrared light detection gas humidity as claimed in claim 1, it is characterized in that, in described chamber, be provided with light pipe I and light pipe II, light pipe I is connected by optical fiber II with light pipe II, light pipe I and light pipe II are connected to control device by optical fiber I and optical fiber III respectively, and light pipe I and light pipe II and upper cover are tightly connected.
3. a kind of device with infrared light detection gas humidity as claimed in claim 2, is characterized in that, described light pipe I and light pipe II are collimating apparatus.
4. a kind of device with infrared light detection gas humidity as described in claim 1 or 2, is characterized in that, described upper cover and the lower cover place of being tightly connected are provided with fluid sealant or O-ring seal.
5. a kind of device with infrared light detection gas humidity as claimed in claim 1, is characterized in that, described hole II is located at the upper left side of upper cover, and hole I is located at the lower right side of upper cover.
6. a kind of device with infrared light detection gas humidity as described in claim 1 or 2, is characterized in that, described securing member is screw or bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210580971.9A CN103033487B (en) | 2012-12-27 | 2012-12-27 | Device for detecting gas humidity with infrared light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210580971.9A CN103033487B (en) | 2012-12-27 | 2012-12-27 | Device for detecting gas humidity with infrared light |
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| Publication Number | Publication Date |
|---|---|
| CN103033487A CN103033487A (en) | 2013-04-10 |
| CN103033487B true CN103033487B (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210580971.9A Active CN103033487B (en) | 2012-12-27 | 2012-12-27 | Device for detecting gas humidity with infrared light |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104345748A (en) * | 2014-10-28 | 2015-02-11 | 佛山市禾才科技服务有限公司 | Automatic granary humidity control device |
| CN104500428A (en) * | 2014-10-28 | 2015-04-08 | 佛山市禾才科技服务有限公司 | Centrifugal fan capable of automatically controlling humidity of granary |
| CN106338490A (en) * | 2016-11-16 | 2017-01-18 | 周学成 | Infrared light detection water concentration sensor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0310146A (en) * | 1989-06-08 | 1991-01-17 | Okawara Mfg Co Ltd | Reflecting optical fiber type infrared-ray moisture meter |
| CH681392A5 (en) * | 1990-12-18 | 1993-03-15 | Alcatel Str Ag | Moisture content measuring method for plastics mass - heating test flask and measuring absorption of IR radiation using vapour products in carrier gas in measuring cell |
| US5468961A (en) * | 1991-10-08 | 1995-11-21 | Fisher & Paykel Limited | Infrared gas analyser and humidity sensor |
| JP2618807B2 (en) * | 1993-06-04 | 1997-06-11 | 動力炉・核燃料開発事業団 | Inner pipe breakage detection device for double-tube steam generator |
| CN2289238Y (en) * | 1996-03-14 | 1998-08-26 | 徐定杰 | Gas humidity sensor |
| CN102721662A (en) * | 2011-07-19 | 2012-10-10 | 赵捷 | Mining infrared gas sensor with high efficiency of light sources |
| CN202974861U (en) * | 2012-12-27 | 2013-06-05 | 济南兰光机电技术有限公司 | Device for detecting gas humidity by using infrared light |
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2012
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