CN203798725U - Ozone analysis system - Google Patents
Ozone analysis system Download PDFInfo
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- CN203798725U CN203798725U CN201320772888.1U CN201320772888U CN203798725U CN 203798725 U CN203798725 U CN 203798725U CN 201320772888 U CN201320772888 U CN 201320772888U CN 203798725 U CN203798725 U CN 203798725U
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- host computer
- output terminal
- input end
- ozone
- converter
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000004458 analytical method Methods 0.000 title abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 28
- 229910052724 xenon Inorganic materials 0.000 claims description 12
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 description 7
- 238000013459 approach Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000004847 absorption spectroscopy Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001658 differential optical absorption spectrophotometry Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model belongs to the field of gas monitoring and discloses an ozone analysis system. The ozone analysis system comprises a light source, an air chamber, a spectrograph and an upper computer, wherein an air inlet and an air outlet are formed in the air chamber; gases to be detected circulate in the air chamber; an input end and an output end of the spectrograph are respectively connected with an output end of the air chamber and an input end of the upper computer; the spectrograph receives light rays which are emitted from the light source and penetrate through the air chamber, converts the received light signal into an electric signal and transmits the electric signal to the upper computer. Compared with the prior art, the ozone analysis system disclosed by the utility model has the advantages that discrete components in the prior art are replaced by using a modular structure, and the ozone analysis system is simple in overall structure and low in cost.
Description
Technical field
The utility model belongs to gas-monitoring field, relates in particular to a kind of ozone analytic system.
Background technology
Ozone gas analyser is one of module instrument of air quality monitoring, and domestic and a lot of external ozone analyzers of producing, all adopt ultraviolet absorption method at present, comprise monochromatic light road analytical approach or double light path analytical approach.In ultraviolet absorption method, no matter be monochromatic light road analytical approach or double light path analytical approach, all need in gas circuit, produce reference gas, and to form reference gas, just need to increase solenoid valve and ozone is washed away the gas circuit facilities such as catalyzer, and will in the situation that not affecting gas circuit flow pressure, produce reference gas, this gas circuit element is many, complex structure, be difficult for modularization, cause ozone analyzer device overall volume large, can not be applied in the air quality detector of miniaturization, microminiaturization.
Utility model content
The purpose of this utility model is to provide a kind of ozone analytic system, to solve complex structure in analytical instrument of the prior art, causes overall volume to become large problem.
An ozone analytic system, comprising: light source, air chamber, spectrometer and host computer;
Described air chamber is provided with air intake opening and gas outlet, the described air chamber gas to be measured that circulates;
The input end of described spectrometer is connected respectively the output terminal of described air chamber and the input end of described host computer with output terminal, described spectrometer receives the light through described air chamber that described light source sends, the light signal receiving is changed into electric signal, and send to described host computer.
Described spectrometer comprises: adjustable slit, concave grating and signals collecting conversion module, the output terminal of described signals collecting conversion module is connected with the input end of described host computer, described concave grating carries out the light entering from described adjustable slit light splitting, focuses on described signals collecting conversion module, described signals collecting conversion module changes into electric signal by the light signal receiving, and sends to described host computer.
Described signals collecting conversion module comprises photo-detector and AD converter;
The output terminal of described photo-detector connects the input end of described AD converter, and described light detectors converts light signal analog electrical signal to and sends to described AD converter;
The output terminal of described AD converter connects the input end of described host computer, and described AD converter converts described analog electrical signal digital electric signal to and sends to described host computer
Described photo-detector is PDA detector, and the output terminal of described PDA detector connects the input end of described AD converter.
Described signals collecting conversion module also comprises Digital Logic and sequence generation module, described Digital Logic is connected with the control end of sequence generation module and the output terminal of described host computer, and described Digital Logic is connected the input end of described photo-detector and the input end of described AD converter with the output terminal of sequence generation module.
Described signals collecting conversion module also comprises storer, and the input end of described storer connects described AD converter and described Digital Logic and sequence generation module, and the output terminal of described storer connects described host computer.
Described light source comprises light source driving circuit, xenon lamp, condenser and fibre-optical splice, the output terminal of described light source driving circuit is connected with the input end of described xenon lamp, the front end of described xenon lamp arranges described condenser, the light focusing that described condenser sends described xenon lamp is on described fibre-optical splice, and described fibre-optical splice emits beam and outputs in described spectrometer through air chamber.
The control end of described light source driving circuit is connected with the output terminal of described host computer.
A kind of ozone analytic system of the utility model compared with prior art, by using modular structure to replace discrete component of the prior art, one-piece construction is simple, cost is lower, and can be applicable in miniaturization and microminiaturized air quality detector device, make the stable performance of air quality detector device, overall volume is little, easy to use.
Accompanying drawing explanation
Fig. 1 is the embodiment schematic diagram of a kind of ozone analytic system of providing of the utility model embodiment;
Fig. 2 is the embodiment schematic diagram of light source in a kind of ozone analytic system of providing of the utility model embodiment;
Fig. 3 is the embodiment schematic diagram of spectrometer in a kind of ozone analytic system of providing of the utility model embodiment;
Fig. 4 is the embodiment schematic diagram that in a kind of ozone analytic system of providing of the utility model embodiment, signals collecting conversion module is connected with host computer.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The embodiment of the present invention provides an a kind of embodiment of ozone analytic system, comprising: light source 11, air chamber 12, spectrometer 13 and host computer 14;
Described air chamber 12 is provided with air intake opening and gas outlet, described air chamber 12 circulation gas to be measured;
The input end of described spectrometer 13 is connected respectively the output terminal of described air chamber 12 and the input end of described host computer 14 with output terminal, described spectrometer 13 receives the light through described air chamber 12 that described light source sends, the light signal receiving is changed into electric signal, and send to described host computer 14.
Described light source 11 comprises light source driving circuit 111, xenon lamp 112, condenser 113 and fibre-optical splice 114, the output terminal of described light source driving circuit 111 is connected with the input end of described xenon lamp 112, the front end of described xenon lamp 112 arranges described condenser 113, the light focusing that described condenser 113 sends described xenon lamp 112 is on described fibre-optical splice 114, and described fibre-optical splice 114 emits beam and outputs in described spectrometer 13 through air chamber.
Described light source can be by automatic, manual or PC control, preferably, described light source is by PC control, and the control end of described light source driving circuit is connected with the output terminal of described host computer, according to light source described in the software control of described host computer, sends pulse flash.
Described fibre-optical splice 114 is preferably SMA-905, and described fibre-optical splice is coupled into spectrometer by light.
Described spectrometer 13 comprises: adjustable slit 131, concave grating 132 and signals collecting conversion module 133, described concave grating 132 carries out the light entering from described adjustable slit 131 light splitting and focuses on described signals collecting conversion module 133, described signals collecting conversion module 133 changes into electric signal by the light signal receiving, and sends to described host computer 14.
Described adjustable slit 131 can regulate the spacing that changes slit.
Described concave grating 132 has and focuses on and minute light action, does not need collimating mirror and focus lamp during use, can be directly by light light splitting and focus on described signals collecting conversion module 133.
Described signals collecting transforms 133 circuit and comprises photo-detector and AD converter;
The output terminal of described photo-detector connects the input end of described AD converter, and described light detectors converts light signal analog electrical signal to and sends to described AD converter;
The output terminal of described AD converter connects the input end of described host computer, and described AD converter converts described analog electrical signal digital electric signal to and sends to described host computer
A kind of embodiment of described photo-detector is PDA(photo-diode array, diode array detector) detector, the output terminal of described PDA detector connects the input end of described AD converter.
Concrete, refer to Fig. 4, described signals collecting conversion module 133 is connected with described host computer 14, wherein, described signals collecting conversion module 133 comprises PDA detector 141 and AD converter 142, the output terminal of described PDA detector connects the input end of described AD converter 142, described signals collecting conversion module also comprises Digital Logic and sequence generation module 143, described Digital Logic is connected with the output terminal of described host computer 14 with the control end of sequence generation module 143, described Digital Logic is connected the input end of described PDA detector 141 and the input end of described AD converter 142 with the output terminal of sequence generation module 143, described signals collecting conversion module 133 also comprises storer 144, the input end of described storer 144 connects described AD converter 142 and described Digital Logic and sequence generation module 143, the output terminal of described storer 144 connects described host computer 14.In Fig. 4, except host computer, other are all the parts of signals collecting conversion module in spectrometer
The light signal that described PAD detector receives described spectrometer converts analog electrical signal to and sends to described AD converter, described AD converter converts described analog electrical signal to digital electric signal and sends to described controller to store, described Digital Logic and sequence generation module are sent timing control signal and are controlled described PAD detector and described AD converter under the control of described host computer, between described Digital Logic and sequence generation module and described host computer, communication completes with VB language design, call basic parallel interface handling function, the control command that described host computer can be sent writes, described host computer also can read current state and the data in data-carrier store simultaneously.
Described host computer 14 at least comprises liquid crystal display, membrane keyboard and controller, by membrane keyboard, changes current integral time of PDA, and can check the current residing state of PDA by liquid crystal display.
Driving sequential and data processing and control circuit that existing signal acquiring board is used are all built and are formed by discrete component, and this method has not only increased area and the complexity of circuit board, is not suitable for miniaturization ozone analyzer.
Signals collecting conversion module in the utility model embodiment adopts programmable logic device (PLD), can under the control of host computer, produce the control sequential that PDA opto-electronic conversion drives sequential and data-signal to process simultaneously, and volume is little, applicable to small-sized ozone analyzer.
The specific works process of a kind of ozone analytic system of the utility model embodiment is: described light source is luminous under the driving of described light source driving circuit, light is coupled into spectrometer through described fibre-optical splice SMA-905, through described adjustable slit, arrive described concave grating, described concave grating has focusing and divides light action, during use, do not need collimating mirror and focus lamp, by PDA detector, be placed on the imaging surface of concave grating, can obtain spectral signal separately, by signals collecting conversion module, through collection, change into electric signal and send to host computer, upper computer software is treated as spectrogram, host computer calculates the concentration of Ozone in Atmosphere according to described electric signal simultaneously, be presented on display.
The utility model embodiment owing to using concave grating, compares with plane grating in spectrometer, and the spectrometer element of making is few, and position of components is fixed, and adjustment and installation is simple.The utility model embodiment preferred PDA detector in signals collecting conversion module, compares with ccd detector, has high response sensitivity between ultraviolet region, and the response time is short, in the course of work without refrigeration.
The utility model embodiment is in order to solve microminiaturization, the modularization problem of Ozone in Atmosphere analysis module, by structure is unlike the prior art set, can adopt UV-DOAS technology (ultraviolet difference absorption spectroscopy techniques), adopt another non-dispersive method of different wavelength measurement light absorption.In system, by using reference wavelength to replace producing reference gas in reference cell or system, therefore make system element modularization, microminiaturization.
A kind of ozone analytic system of the utility model compared with prior art, by using modular structure to replace discrete component of the prior art, one-piece construction is simple, cost is lower, and can be applicable in miniaturization and microminiaturized air quality detector device, make the stable performance of air quality detector device, overall volume is little, easy to use.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model.For example, modules is just divided according to function logic, but is not limited to above-mentioned division, as long as can realize corresponding function; In addition, the concrete title of each functional module also, just for the ease of mutual differentiation, is not limited to protection domain of the present utility model.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. an ozone analytic system, comprising: light source, air chamber, spectrometer and host computer; It is characterized in that, described air chamber is provided with air intake opening and gas outlet, the described air chamber gas to be measured that circulates;
The input end of described spectrometer is connected respectively the output terminal of described air chamber and the input end of described host computer with output terminal, described spectrometer receives the light through described air chamber that described light source sends, the light signal receiving is changed into electric signal, and send to described host computer.
2. ozone analytic system as claimed in claim 1, it is characterized in that, described spectrometer comprises: adjustable slit, concave grating and signals collecting conversion module, the output terminal of described signals collecting conversion module is connected with the input end of described host computer, described concave grating carries out the light entering from described adjustable slit light splitting and focuses on described signals collecting conversion module, described signals collecting conversion module changes into electric signal by the light signal receiving, and sends to described host computer.
3. ozone analytic system as claimed in claim 2, is characterized in that, described signals collecting conversion module comprises photo-detector and AD converter;
The output terminal of described photo-detector connects the input end of described AD converter, and described light detectors converts light signal analog electrical signal to and sends to described AD converter;
The output terminal of described AD converter connects the input end of described host computer, and described AD converter converts described analog electrical signal digital electric signal to and sends to described host computer.
4. ozone analytic system as claimed in claim 3, is characterized in that, described photo-detector is PDA detector, and the output terminal of described PDA detector connects the input end of described AD converter.
5. ozone analytic system as claimed in claim 3, it is characterized in that, described signals collecting conversion module also comprises Digital Logic and sequence generation module, described Digital Logic is connected with the control end of sequence generation module and the output terminal of described host computer, and described Digital Logic is connected the input end of described photo-detector and the input end of described AD converter with the output terminal of sequence generation module.
6. ozone analytic system as claimed in claim 5, it is characterized in that, described signals collecting conversion module also comprises storer, and the input end of described storer connects described AD converter and described Digital Logic and sequence generation module, and the output terminal of described storer connects described host computer.
7. ozone analytic system as claimed in claim 1, it is characterized in that, described light source comprises light source driving circuit, xenon lamp, condenser and fibre-optical splice, the output terminal of described light source driving circuit is connected with the input end of described xenon lamp, the front end of described xenon lamp arranges described condenser, the light focusing that described condenser sends described xenon lamp is on described fibre-optical splice, and described fibre-optical splice emits beam and outputs in described spectrometer through air chamber.
8. ozone analytic system as claimed in claim 7, is characterized in that, the control end of described light source driving circuit is connected with the output terminal of described host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320772888.1U CN203798725U (en) | 2013-11-28 | 2013-11-28 | Ozone analysis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320772888.1U CN203798725U (en) | 2013-11-28 | 2013-11-28 | Ozone analysis system |
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| Publication Number | Publication Date |
|---|---|
| CN203798725U true CN203798725U (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320772888.1U Expired - Lifetime CN203798725U (en) | 2013-11-28 | 2013-11-28 | Ozone analysis system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359849A (en) * | 2014-10-31 | 2015-02-18 | 苏州宏瑞净化科技有限公司 | Ozone detection sensor |
| CN104990883A (en) * | 2015-07-28 | 2015-10-21 | 陕西科技大学 | Device for detecting gas concentration by spectrometer |
| CN105784621A (en) * | 2016-05-16 | 2016-07-20 | 青岛市光电工程技术研究院 | Device for detecting sulfur dioxide in marine exhaust gas based on unmanned aerial vehicle platform |
-
2013
- 2013-11-28 CN CN201320772888.1U patent/CN203798725U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359849A (en) * | 2014-10-31 | 2015-02-18 | 苏州宏瑞净化科技有限公司 | Ozone detection sensor |
| CN104990883A (en) * | 2015-07-28 | 2015-10-21 | 陕西科技大学 | Device for detecting gas concentration by spectrometer |
| CN105784621A (en) * | 2016-05-16 | 2016-07-20 | 青岛市光电工程技术研究院 | Device for detecting sulfur dioxide in marine exhaust gas based on unmanned aerial vehicle platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220507 Address after: 528000 No.8, Huishang Road, Jiangcun village, Leliu street, Shunde District, Foshan City, Guangdong Province Patentee after: Guangdong Yingfeng Technology Co.,Ltd. Address before: 518000 3rd and 4th floors, block B, Tsinghua information port, North District, high tech Industrial Park, Nanshan District, Shenzhen City, Guangdong Province Patentee before: UNIVERSTAR SCIENCE & TECHNOLOGY (SHENZHEN) Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |