CN201765180U - Ozone concentration sensor - Google Patents
Ozone concentration sensor Download PDFInfo
- Publication number
- CN201765180U CN201765180U CN 201020505757 CN201020505757U CN201765180U CN 201765180 U CN201765180 U CN 201765180U CN 201020505757 CN201020505757 CN 201020505757 CN 201020505757 U CN201020505757 U CN 201020505757U CN 201765180 U CN201765180 U CN 201765180U
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- casing
- ozone
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- absorption cell
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Abstract
The utility model discloses an ozone concentration sensor, which comprises a casing and an absorption cell arranged in the casing. Two ends of the casing are opening ends communicated with the absorption cell, the casing is further provided with an ozone inlet and an ozone outlet which are communicated with the absorption cell, the opening ends at two ends of the casing are respectively provided with light transmitting glass and reflecting glass to seal the absorption cell, a box body is further fixed on an end surface of the end of the casing with the light transmitting glass, three passages which are horizontal and parallel mutually are disposed in the box body and respectively are a first passage with an LED light source inside, a second passage with an optical sensor A inside and a third passage with an optical sensor B inside, a perpendicular passage is further arranged in the box body, an opening of the perpendicular passage extends to the surface of the box body, and a light adjusting screw stem is arranged in the perpendicular passage. The ozone concentration sensor has the advantages that the ozone concentration sensor is simple in structure and convenient in use, greatly reduces cost compared with an ultraviolet ozone sensor, and is accurate in outputted signal and free of errors when in measurement for ozone concentration.
Description
Technical field
The utility model belongs to the ozone concentration detection device technical field, is specifically related to a kind of ozone concentration sensor.
Background technology
Ozonosphere can absorb ultraviolet ray, studies show that ozone only has the absorption maximum coefficient to the ultraviolet ray of wavelength 253.7nm, ultraviolet ray can produce decay by ozone under this wavelength, meets youth's primary-Beer law, this principle by country such as U.S. as the ozone standard method of analysis.What existing ozone detector generally adopted is the principle of uItraviolet absorption methods, produces ultraviolet ray with stable ultraviolet light source, filters out other wavelength ultraviolet light with the light wave filtrator, only allows wavelength 253.7nm to pass through.Through the sample photoelectric sensor, pass through the ozone absorption cell again after, arrive the sampled light electric transducer.Calculating through mathematical model just can draw the ozone concentration size.But the absorption spectrum of ozone is except that ultraviolet wave band has very strong absorption, visible light wave range at 440～750nm has more weak absorption, prior art also has in this wave band, light source adopts led light source, arrived several per milles greater than 100,000 hours but its price only is equivalent to more than one percent of ultraviolet light source its serviceable life; Visible light sensor also has only 1/tens of UV sensor.Because optical sensor is subject to the influence of serviceable life, external environment factors such as (temperature, pressure, magnetic field, electric fields), can cause the characteristic of optical sensor to change, the data exported when the measurement ozone concentration of optical sensor can produce deviation like this.
Summary of the invention
The purpose of this utility model provides a kind of ozone concentration sensor, has solved the problem that the data of exporting when the prior art optical sensor is measured ozone concentration again after long-term the use can produce deviation.
The technical scheme that the utility model adopted is that a kind of ozone concentration sensor comprises housing and is arranged on the interior absorption cell of housing, the openend of the two ends of housing for communicating with absorption cell; Also be provided with the ozone air intake opening and the ozone outlet that communicate with absorption cell on the housing; Housing openings at two ends end is respectively arranged with transparent glass and rear reflector seals absorption cell; Be positioned on the housing end face of transparent glass one end and also be fixed with casing, the passage that is provided with three levels in the casing and is parallel to each other is respectively the first passage that is built-in with led light source, is built-in with the second channel of optical sensor A and is built-in with the third channel of optical sensor B; The outlet of first passage and second channel extends to the end face of casing towards transparent glass, and the outlet of third channel is positioned at box house; Also be provided with a vertical channel in the casing, this vertical channel communicates with third channel and first passage, and the opening of this vertical channel extends to tank surface; Be provided with the light adjusting screw(rod) in the vertical channel.
Wherein, also be provided with the operating circuit plate on the casing, the operating circuit plate is provided with and is electrically connected plug.
Wherein, the outside of rear reflector also is provided with stator, and stator is fixed on the end face of housing.
The beneficial effects of the utility model are, and are simple in structure, easy to use, reduce greatly with respect to ultraviolet and ozone sensing device cost; Adopt the purpose of two optical sensors to be, can guarantee that two optical sensors are using or be subjected to the variation of external environment factor for a long time, its characteristic remains unanimity, and when measuring ozone concentration, the signal of its output is accurate, and is error free like this.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure, 1. housing, 2. ozone outlet, 3. ozone air intake opening, 4. transparent glass, 5. rear reflector, 6.LED light source, 7. optical sensor A, 8. optical sensor B, 9. first passage, 10. second channel, 11. third channels, 12. vertical channels, 13. the light adjusting screw(rod), 14. operating circuit plates, 15. stators, 16. be electrically connected plug, 17. absorption cells, 18. casings.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As shown in Figure 1, the utility model discloses a kind of ozone concentration sensor, comprise housing 1 and the absorption cell 17 that is arranged in the housing 1, the openend of the two ends of housing 1 for communicating with absorption cell 17; Also be provided with the ozone air intake opening 3 and the ozone outlet 2 that communicate with absorption cell 17 on the housing 1.Housing 1 openings at two ends end is respectively arranged with transparent glass 4 and rear reflector 5 seals absorption cell 17; The outside of rear reflector 5 also is provided with stator 15, and stator 15 is fixed on the end face of housing 1.Be positioned on housing 1 end face of transparent glass 4 one ends and also be fixed with casing 18, the passage that is provided with three levels in the casing 18 and is parallel to each other, the third channel 11 that is respectively the first passage 9 that is built-in with led light source 6, the second channel 10 that is built-in with optical sensor A7 and is built-in with optical sensor B8; First passage 9 extends to the end face of casing 18 towards transparent glass 4 with the outlet of second channel 10, and the outlet of third channel 11 is positioned at casing 18 inside; Also be provided with a vertical channel 12 in the casing 18, this vertical channel 12 communicates with third channel 11 and first passage 9, and the opening of this vertical channel 12 extends to casing 18 surfaces; Be provided with light adjusting screw(rod) 13 in the vertical channel 12.Also be provided with operating circuit plate 14 on the casing 18, operating circuit plate 14 is provided with and is electrically connected plug 16.
Principle of work of the present utility model is: because optical sensor is subject to the influence of serviceable life, external environment factors such as (temperature, pressure, magnetic field, electric fields), can cause the characteristic of optical sensor to change, the data exported when measuring ozone concentration of optical sensor can produce deviation like this.In order to overcome this problem, before dispatching from the factory earlier to the utility model preceding setting of dispatching from the factory: feeding is used for preparing under the situation of gas (oxygen or air) of ozone absorption cell 17 in, led light source 6 sends the light of constant intensity, wherein a part of light through first passage 9, pass transparent glass 4, enter in the absorption cell 17 and to arrive rear reflector 5, the reflected back transparent glass 4 again, received by optical sensor A7 by second channel 10; Another part light enters 11 li of third channels through vertical channel 12, is received by optical sensor B8.The light intensity value that optical sensor A7 receives is A1, and the light intensity value that optical sensor B8 receives is A2; If A1 is not equal to A2, by regulating the upper-lower position of light adjusting screw(rod) 13 in vertical channel 12, regulate optical sensor B8 and receive the size of light intensity value, guarantee that the light intensity value A1 of optical sensor A7 output and the light intensity value A2 of optical sensor B8 output equate.When ozone concentration is measured in normal use, in absorption cell 17, feed ozone, led light source 6 sends the light of constant intensity, wherein a part of light through first passage 9, pass transparent glass 4, enter absorption cell 17 and arrive rear reflectors 5, the reflected back transparent glass 4 again, enter second channel 10 and received by optical sensor A7, because part light is absorbed by ozone, the light intensity value that optical sensor A7 receives will reduce that (ozone concentration is high more, and the amplitude that light intensity reduces is just big more; Ozone concentration is low more, and the amplitude that light intensity reduces is just more little), at this moment, the light intensity value that optical sensor A7 receives is A3; And another part light enters 11 li of third channels through vertical channel 12, is received the light intensity A4 that optical sensor B8 output absorbs without ozone by optical sensor B8; By the difference of intensity variation (A4-A3) and the length of light path (absorption cell 17 length values 2 times), can calculate the concentration of ozone.
Claims (3)
1. an ozone concentration sensor comprises housing (1) and is arranged on the interior absorption cell (17) of housing (1), the openend of the two ends of housing (1) for communicating with absorption cell (17); Also be provided with the ozone air intake opening (3) and the ozone outlet (2) that communicate with absorption cell (17) on the housing (1), it is characterized in that: housing (1) openings at two ends end is respectively arranged with transparent glass (4) and rear reflector (5) seals absorption cell (17); Be positioned on housing (1) end face of transparent glass (4) one ends and also be fixed with casing (18), the passage that is provided with three levels and is parallel to each other in the casing (18) is respectively the first passage (9) that is built-in with led light source (6), is built-in with optical sensor A(7) second channel (10) and be built-in with optical sensor B(8) third channel (11); Described first passage (9) extends to the end face of casing (18) towards transparent glass (4) with the outlet of second channel (10), and the outlet of described third channel (11) is positioned at casing (18) inside; Also be provided with a vertical channel (12) in the casing (18), this vertical channel (12) communicates with third channel (11) and first passage (9), and the opening of this vertical channel (12) extends to casing (18) surface; Be provided with light adjusting screw(rod) (13) in the described vertical channel (12).
2. a kind of ozone concentration sensor according to claim 1 is characterized in that: also be provided with operating circuit plate (14) on the described casing (18), operating circuit plate (14) is provided with and is electrically connected plug (16).
3. a kind of ozone concentration sensor according to claim 1 is characterized in that: the outside of described rear reflector (5) also is provided with stator (15), and described stator (15) is fixed on the end face of housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020505757 CN201765180U (en) | 2010-08-26 | 2010-08-26 | Ozone concentration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020505757 CN201765180U (en) | 2010-08-26 | 2010-08-26 | Ozone concentration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201765180U true CN201765180U (en) | 2011-03-16 |
Family
ID=43717790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020505757 Expired - Fee Related CN201765180U (en) | 2010-08-26 | 2010-08-26 | Ozone concentration sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201765180U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406409A (en) * | 2018-12-11 | 2019-03-01 | 苏州宏瑞净化科技有限公司 | A kind of double light path Ozone Absorption pond |
| CN113242968A (en) * | 2018-12-21 | 2021-08-10 | 希奥检测有限公司 | Sensor operable to measure ozone concentration and method of using the sensor |
-
2010
- 2010-08-26 CN CN 201020505757 patent/CN201765180U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406409A (en) * | 2018-12-11 | 2019-03-01 | 苏州宏瑞净化科技有限公司 | A kind of double light path Ozone Absorption pond |
| CN113242968A (en) * | 2018-12-21 | 2021-08-10 | 希奥检测有限公司 | Sensor operable to measure ozone concentration and method of using the sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20120826 |