CN100414285C - Sensor for visible ozone thickness detector - Google Patents
Sensor for visible ozone thickness detector Download PDFInfo
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- CN100414285C CN100414285C CNB2005100421730A CN200510042173A CN100414285C CN 100414285 C CN100414285 C CN 100414285C CN B2005100421730 A CNB2005100421730 A CN B2005100421730A CN 200510042173 A CN200510042173 A CN 200510042173A CN 100414285 C CN100414285 C CN 100414285C
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Abstract
The present invention relates to a sensor for visible light zone concentration examining equipment, which belongs to the field of the ozone concentration measuring device. The present invention is characterized in that the present invention comprises a casing (3) and an ozone absorption chamber (11) arranged in the casing (3), wherein the ozone absorption chamber (11) is provided with an ozone gas inlet (4) and an ozone gas outlet (2), and both ends of the ozone absorption chamber (11) are over against through sealing pieces (9), (19), pressing plates (8), (14), end plugs for sealing (10, (12), a light transmitting tube (7) and a light receiving tube (15). Working circuit boards (6), (16) are fixed in the casing (3) through end covers (5), (17), and an electrical connecting plug (1) is fixedly connected with an end cover (1). The present invention has the advantages that a light source uses an ordinary LED light emitting diode, the light receiving tube is a photoelectric diode, the service life is more than 100000 hours, the price is low and is only one of a plurality of hundred to one of a plurality of thousand of that of an ultraviolet light source, etc.
Description
Technical field
Sensor for visible ozone thickness detector belongs to visible absorption method ozone concentration measurer device field.
Background technology
Well-known ozone has very strong absorption to wavelength in the ultraviolet ray of 200～280nm, and therefore the ozone concentration detection device of many manufacturer production adopts uItraviolet absorption methods, with this method the absorption chamber size can be done very little, make the pick-up unit compact.What China used at present mainly is import equipment or the domestic mounting equipment of import critical component, but also exist many defectives with this method, for example present high stable performance ultraviolet light source price height that can provide and life-span are short, and the steady operation life-span was difficult to break through 10,000 hours at several thousand hours; A uItraviolet absorption methods ozone concentration detection device price is difficult to popularize and uses several ten thousand to tens0000.
Summary of the invention
Prove through repetition test, 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, but corresponding photoelectric technology development is quite ripe in this wave band, and light source can adopt LED light emitting diode or LD laser diode, and serviceable life was greater than 100,000 hours, price is very cheap, only be equivalent to more than one percent of ultraviolet light source and arrive several per milles, power consumption also greatly reduces simultaneously, has only more than one percent.Visible light sensor is photodiode or photoelectric cell.Suitable serviceable life with UV sensor, but price has only 1/tens of UV sensor.
The technical problem to be solved in the present invention is: overcomes the problem that prior art exists, a kind of simple in structure, long service life is provided, and greater than 100,000 hours, the sensor for visible ozone thickness detector that price is very cheap, performance is higher than uItraviolet absorption methods.
The technical solution adopted for the present invention to solve the technical problems is: this sensor for visible ozone thickness detector, it is characterized in that: comprise shell, ozone absorption chamber in the enclosure, the ozone absorption chamber is provided with ozone air intake opening and ozone outlet, diaphragm seal is passed through at ozone absorption chamber two ends, pressing plate, plug sealing, light-emitting tube and light receiving tube are fixing in the enclosure by end cap over against, its operating circuit plate, are electrically connected plug and end cap is connected.Its principle is: light-emitting tube 7 and light receiving tube 15 and operating circuit are at the two ends of ozone absorption chamber 11; The light that light-emitting tube 7 sends constant intensity arrives light receiving tube 15 through ozone absorption chamber 11, the light intensity value that receives during ozone absorption chamber 11 ozone frees is A0, its part light is absorbed by ozone when in the ozone absorption chamber 11 ozone being arranged, the light intensity that light receiving tube 15 receives will reduce that (amplitude of the high more reduction of ozone concentration is big more, the amplitude of the low more reduction of ozone concentration is more little), the light intensity value of this moment is A1, by the difference of intensity variation (A0-A1) and the length value of ozone absorption chamber 11, can calculate the concentration of ozone.
Diaphragm seal is transparent glass sheet or light reflection diaphragm seal, and its effect is with the sealing of ozone absorption chamber, prevents that ozone from leaking from two ends.
Light-emitting tube is LED light emitting diode or LD laser diode.Light receiving tube is photodiode or photoelectric cell.Transmit and receive visible light.
Light-emitting tube and light receiving tube also can be arranged on the same end of ozone absorption chamber, and the diaphragm seal of the relative end of this structured light power valve is a light reflection diaphragm seal.The light that light-emitting tube is launched arrives light receiving tube by the reflection of light reflection diaphragm seal.
Compared with prior art, the beneficial effect that the present invention had is: the light source of this sensor for visible ozone thickness detector adopts common LED light emitting diode or LD laser diode, serviceable life was greater than 100,000 hours, price is very cheap, only be equivalent to more than one percent of ultraviolet light source and arrive several per milles, power consumption also greatly reduces simultaneously, has only more than one percent.Visible light sensor adopts photodiode or photoelectric cell, and serviceable life and UV sensor are suitable, but price has only 1/tens of UV sensor.Other performance all is higher than the uItraviolet absorption methods sensor.
Description of drawings
Fig. 1 is that the embodiment of the invention 1 structure is cutd open and shown synoptic diagram;
Fig. 2 is the contour structures simplified schematic diagram of Fig. 1 embodiment 1;
Fig. 3 is embodiments of the invention 2 structural representation sketches.
Fig. 1-the 3rd, two most preferred embodiments of the present invention.Wherein: 1 is electrically connected plug 2 ozone outlets 3 shells 4 ozone air intake openings 5,17 end caps 6,16 wiring boards 7 light- emitting tubes 9,13 transparent glass sheets 11 ozone absorption chambers 10,12 plugs 8,14 pressing plates 15 light receiving tubes 18 light reflection diaphragm seal.
Shown in Fig. 1-2: embodiment 1 structure is cutd open and is shown and dimension sketch.Shell 3 is a tubulose, ozone absorption chamber 11 is that tubular diameter is less than shell 3, be sleeved in the shell 3, fill ozone gas in the ozone absorption chamber 11, ozone absorption chamber 11 front ends top is provided with ozone air intake opening 4, the top, rear end is provided with ozone outlet 2, ozone absorption chamber 11 two ends are by circular pressing plate 8,14, transparent glass sheet 9,13, plug 10,12 sealings, transparent glass sheet 9,13 1 ends are installed between pressing plate 14 and the plug 12, the other end is installed between pressing plate 8 and the plug 10, prevents that ozone from leaking from two ends.Plug 10,12, design is porose in the middle of the pressing plate 8,15, light-emitting tube 7 is installed in the hole of pressing plate 8 over against transparent glass sheet 9, plug 10 holes and ozone absorption chamber 11 1 ends, light receiving tube 15 is installed in the hole of pressing plate 14 other end over against transparent glass sheet 13, plug 12 holes and ozone absorption chamber 11, its operating circuit plate 6,16 is fixed in the shell 3 by end cap 5,17, is electrically connected plug 1 and is connected with end cap 17.Its principle is: light-emitting tube 7 and light receiving tube 15 and operating circuit are at the two ends of ozone absorption chamber 11; The light that light-emitting tube 7 sends constant intensity arrives light receiving tube 15 through ozone absorption chamber 11, the light intensity value that receives during ozone absorption chamber 11 ozone frees is A0, its part light is absorbed by ozone when in the ozone absorption chamber 11 ozone being arranged, the light intensity that light receiving tube 15 receives will reduce that (amplitude of the high more reduction of ozone concentration is big more, the amplitude of the low more reduction of ozone concentration is more little), the light intensity value of this moment is A1, by the difference of intensity variation (A0-A1) and the length value of ozone absorption chamber 11, can calculate the concentration of ozone.Light-emitting tube 7 is the LED light emitting diode, adopts constant-current source circuit to drive and makes luminous intensity stable.Light receiving tube 15 is a 2DU series photodiode.Effect is basic identical when doing light source with orange red laser diode.Light receiving tube also can adopt photoelectric cell.
With reference to shown in Figure 3: embodiment 2 construction profile sketches.Wherein, light-emitting tube 7 and light receiving tube 15 are at the same end of ozone absorption chamber 11, and 13 is the transparent sealing sheet, and 18 is reflective sealing eyeglass, the light that light-emitting tube 7 sends constant intensity arrives the part arrival light receiving tube 15 that reflective sealing eyeglass 18 back reflections return, and makes effective optical path length increase.Reduce absorption chamber length for can the sample method of this light reflection of the application scenario of ozone absorption chamber 11 length limited systems.It should be noted that will carry out light between light-emitting tube 7 and the light receiving tube 15 isolates, avoid the light of reflection directly to arrive light receiving tube 15, the sampling laser diode is done light source and is easy to accomplish.All the other are with embodiment 1.
For different measurement of concetration scopes, need different ozone absorption chamber length to guarantee enough measuring accuracy, the application scenario that concentration is low needs long ozone absorption chamber, and the occasion that concentration is high needs short ozone absorption chamber.But the method for the application scenario sampled light line reflection of ozone absorption chamber length limited system reduces ozone absorption chamber length.
Claims (5)
1. sensor for visible ozone thickness detector, it is characterized in that: comprise shell (3), ozone absorption chamber (11) in shell (3), ozone absorption chamber (11) is provided with ozone air intake opening (4) and ozone outlet (2), ozone absorption chamber (11) two ends are by diaphragm seal (9), (13), pressing plate (8), (14), plug (10), (12) sealing, light-emitting tube (7) and light receiving tube (15) over against, its operating circuit plate (6), (16) by end cap (5), (17) be fixed in the shell (3), be electrically connected plug (1) and be connected with end cap (17).
2. sensor for visible ozone thickness detector according to claim 1 is characterized in that: diaphragm seal (9), (13) are transparent glass sheet.
3. sensor for visible ozone thickness detector according to claim 1 and 2 is characterized in that: light-emitting tube (7) is a light emitting diode, and light receiving tube (15) is a photodiode.
4. sensor for visible ozone thickness detector according to claim 1 and 2 is characterized in that: light-emitting tube (7) is a light emitting diode, and light receiving tube (15) is a photoelectric cell.
5. sensor for visible ozone thickness detector according to claim 1 and 2 is characterized in that: light-emitting tube (7) is a laser diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100421730A CN100414285C (en) | 2005-03-18 | 2005-03-18 | Sensor for visible ozone thickness detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100421730A CN100414285C (en) | 2005-03-18 | 2005-03-18 | Sensor for visible ozone thickness detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1834625A CN1834625A (en) | 2006-09-20 |
| CN100414285C true CN100414285C (en) | 2008-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100421730A Expired - Fee Related CN100414285C (en) | 2005-03-18 | 2005-03-18 | Sensor for visible ozone thickness detector |
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| Country | Link |
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| CN (1) | CN100414285C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101200850B1 (en) * | 2010-08-27 | 2012-11-13 | 한국표준과학연구원 | Multi Ozone Gas Analyzer |
| CN104155254A (en) * | 2014-07-03 | 2014-11-19 | 苏州宏瑞净化科技有限公司 | Ozone concentration analyzer |
| CN105158159A (en) * | 2015-07-08 | 2015-12-16 | 安徽蓝盾光电子股份有限公司 | Ozone concentration detection apparatus for ozone generator |
| CN104990885A (en) * | 2015-07-08 | 2015-10-21 | 安徽蓝盾光电子股份有限公司 | Portable high-concentration ozone calibration source |
| CN107421906A (en) * | 2017-06-13 | 2017-12-01 | 淄博前沿医疗器械有限公司 | A kind of photometer of efficiently measurement concentration of ozone gas |
| CN107782689B (en) * | 2017-08-21 | 2020-10-09 | 深圳康诚博信科技有限公司 | Ozone gas concentration detection device and ozone gas concentration detection method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01250047A (en) * | 1988-03-30 | 1989-10-05 | Teru Kyushu Kk | Ozone concentration measuring instrument |
| US5391883A (en) * | 1994-01-06 | 1995-02-21 | Applied Research Corporation | Ozone meter |
-
2005
- 2005-03-18 CN CNB2005100421730A patent/CN100414285C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01250047A (en) * | 1988-03-30 | 1989-10-05 | Teru Kyushu Kk | Ozone concentration measuring instrument |
| US5391883A (en) * | 1994-01-06 | 1995-02-21 | Applied Research Corporation | Ozone meter |
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| Publication number | Publication date |
|---|---|
| CN1834625A (en) | 2006-09-20 |
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Granted publication date: 20080827 Termination date: 20140318 |