CN203929579U - A kind of binary channels high-flux dust particle sensor - Google Patents
A kind of binary channels high-flux dust particle sensor Download PDFInfo
- Publication number
- CN203929579U CN203929579U CN201420174381.0U CN201420174381U CN203929579U CN 203929579 U CN203929579 U CN 203929579U CN 201420174381 U CN201420174381 U CN 201420174381U CN 203929579 U CN203929579 U CN 203929579U
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- China
- Prior art keywords
- sensor
- way connection
- air
- dust particle
- tracheae
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Abstract
The utility model relates to a kind of binary channels high-flux dust particle sensor, comprises three-way connection, first sensor, the second sensor; First of described three-way connection connects mouth and is connected with air intake opening by tracheae; Described three-way connection second connects mouth and is connected with the air intake opening of first sensor by tracheae; Described three-way connection the 3rd connects mouth and is connected with the air intake opening of the second sensor by tracheae; By three-way connection, to first sensor, the second sensor, provide air-flow, increased the air-flow bore of sensor, but do not increase the air-flow bore of single measurement component, thereby increase sampling quantity, improved the precision of measuring, guaranteed maximum sampled concentrations, the cleaner situation of reaction gas flow; Sampling quantity increases, thereby the Measuring Time of dust particle sensor has been shortened to one times; Air-flow bore increases, and extends the life-span of vacuum pump, improves the stability of instrument.
Description
Technical field
The utility model relates to technical field of measuring equipment, relates in particular to a kind of binary channels high-flux dust particle sensor.
Background technology
In Fig. 1, sensor comprises LASER Light Source 5, first lens group 6, measures chamber 7, the second lens combination 8, photodetector 9, amplifying circuit module 10; Described LASER Light Source 5 produces the light monochromatic, degree of stability is high; Described first lens group 6 projects LASER Light Source 5 to measure in chamber 7; Described measurement chamber 7 forms a light sensitive area under the irradiation of LASER Light Source, when the dust particle in air-flow passes through light sensitive area, can scatter a part of luminous energy, by second lens combination 8 collections angled with incident light; Described the second lens combination 8 projects the luminous energy of collecting on photodetector 9; Described photodetector 9 is converted to electric signal by the luminous energy of scattering; The ultra-weak electronic signal that described amplifying circuit module 10 produces photodetector 9 amplifies, exports, and obtains the pulse signal that comprises airborne and particle diameter.
There is following defect in the sensor:
1, for dust particle, detect, sampling quantity more can reflect the clean situation of tested air more greatly quickly and accurately; But the air-flow bore that blindly increases measurement chamber can cause particle overlapping, counting error also can increase or make maximum sampled concentrations to reduce along with the increase of air-flow bore; If air-flow bore is fixed, and only increase flow, the vacuum pump of bleeding has been proposed to very high requirement, this is that current techniques does not reach; Contradiction between sampling quantity, air-flow aperture, vacuum pump vacuum tightness three cannot solve.
2, sampling quantity is subject to the restriction of air-flow bore and vacuum pump and cannot increases, and the precision of particle sensor cannot promote, and Measuring Time cannot shorten.
3, the continuous firing of vacuum pump, under peak load, has reduced the life-span of vacuum pump, has reduced the stability of instrument.
Utility model content
The utility model object is that a kind of binary channels high-flux dust particle sensor is provided in order to overcome the deficiencies in the prior art, can increase sampling quantity in the situation that do not increase the vacuum tightness of air-flow bore and vacuum pump, the precision that improves dust particle sensor, keeps maximum sampled concentrations; Shorten the Measuring Time of sampling dust particle sensor; Extend the life-span of vacuum pump, improve the stability of instrument.
For achieving the above object, the technical solution adopted in the utility model is: a kind of binary channels high-flux dust particle sensor, comprises three-way connection, first sensor, the second sensor; First of described three-way connection connects mouth and is connected with air intake opening by tracheae; Second of described three-way connection connects mouth and is connected with the air intake opening of first sensor by tracheae; The 3rd of described three-way connection connects mouth and is connected with the air intake opening of the second sensor by tracheae; Described first sensor, the second sensor include LASER Light Source, first lens group, measure chamber, the second lens combination, photodetector, amplifying circuit module; Described LASER Light Source produces the light monochromatic, degree of stability is high; Described first lens group projects LASER Light Source to measure in chamber; Described measurement chamber forms a light sensitive area under the irradiation of LASER Light Source, when the dust particle in air-flow passes through light sensitive area, can scatter a part of luminous energy, is collected with the second lens combination of the angled setting of incident light; Described the second lens combination projects the luminous energy of collecting on photodetector; Described photodetector is converted to electric signal by the luminous energy of scattering; The electric signal that described amplifying circuit module produces photodetector amplifies, exports, and obtains the pulse signal that comprises airborne and particle diameter.
Preferably, described three-way connection is 120 ° of three-way connections.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
Binary channels high-flux dust particle sensor described in the utility model scheme, by three-way connection, to first sensor, the second sensor, provide air-flow, increased the air-flow bore of sensor, but do not increase the air-flow bore of single measurement component, thereby increase sampling quantity, improve the precision of measuring, guaranteed maximum sampled concentrations, the cleaner situation of reaction gas flow; Sampling quantity increases, thereby the Measuring Time of dust particle sensor has been shortened to one times; Air-flow bore increases, and extends the life-span of vacuum pump, improves the stability of instrument.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
A kind of single channel dust particle sensor construction schematic diagram that accompanying drawing 1 is prior art;
Accompanying drawing 2 is the structural representation of binary channels high-flux dust particle sensor described in the utility model;
Wherein: 1, three-way connection; 2, first sensor; 3, the second sensor; 4, data processing unit; 5, LASER Light Source; 6, first lens group; 7, measure chamber; 8, the second lens combination; 9, photodetector; 10, amplifying circuit module.
embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Be binary channels high-flux dust particle sensor described in the utility model as shown in Figure 2, comprise 120 ° of three-way connections 1, first sensor 2, the second sensor 3; First of described 120 ° of three-way connections 1 connect mouth and are connected with air intake opening by tracheae; Described 120 ° of three-way connections 1 second connect mouth and are connected with the air intake opening of first sensor 2 by tracheae; Described 120 ° of three-way connections 1 the 3rd connect mouth and are connected with the air intake opening of the second sensor 3 by tracheae; Described first sensor 2 and the second sensor 3 include LASER Light Source 5, first lens group 6, measure chamber 7, the second lens combination 8, photodetector 9, amplifying circuit module 10; Described LASER Light Source 5 produces the light monochromatic, degree of stability is high; Described first lens group 6 projects LASER Light Source 5 to measure in chamber 7; Described three-way connection 1 evenly separates charge air flow, and half delivers to first sensor 2, and second half delivers to the second sensor 3; The measurement chamber 7 of the measurement chamber 7 of described first sensor 2 and described the second sensor 3 obtains the gas of equivalent in identical time; Described measurement chamber 7 forms a light sensitive area under the irradiation of LASER Light Source 5, when the dust particle in air-flow passes through light sensitive area, can scatter a part of luminous energy, is collected with the second lens combination 8 of the angled setting of incident light; In the present embodiment, the second lens combination 8 becomes 90 degree with the angle of incident light; Described the second lens combination 8 projects the luminous energy of collecting on photodetector 9; Described photodetector 9 is converted to electric signal by the luminous energy of scattering; The electric signal that described amplifying circuit module 10 produces photodetector 9 amplifies, exports, and obtains the pulse signal that comprises airborne and particle diameter; The last data processing two parts being obtained by data processing unit 4 obtains particle diameter and the corresponding concentration information of dust particle.
The utility model provides air-flow to first sensor 2, the second sensor 3 by three-way connection 1, increased the air-flow bore of sensor, but do not increase the air-flow bore of single measurement component, thereby increase sampling quantity, improved the precision of measuring, guaranteed maximum sampled concentrations, the cleaner situation of reaction gas flow; Sampling quantity increases, thereby the Measuring Time of dust particle sensor has been shortened to one times; Air-flow bore increases, and extends the life-span of vacuum pump, improves the stability of instrument.
Below be only concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, within all dropping on the utility model rights protection scope.
Claims (2)
1. a binary channels high-flux dust particle sensor, is characterized in that: comprise three-way connection, first sensor, the second sensor; First of described three-way connection connects mouth and is connected with air intake opening by tracheae; Second of described three-way connection connects mouth and is connected with the air intake opening of first sensor by tracheae; The 3rd of described three-way connection connects mouth and is connected with the air intake opening of the second sensor by tracheae; Described first sensor, the second sensor include LASER Light Source, first lens group, measure chamber, the second lens combination, photodetector, amplifying circuit module; Described LASER Light Source produces the light monochromatic, degree of stability is high; Described first lens group projects LASER Light Source to measure in chamber; Described measurement chamber forms a light sensitive area under the irradiation of LASER Light Source, when the dust particle in air-flow passes through light sensitive area, can scatter a part of luminous energy, is collected with the second lens combination of the angled setting of incident light; Described the second lens combination projects the luminous energy of collecting on photodetector; Described photodetector is converted to electric signal by the luminous energy of scattering; The electric signal that described amplifying circuit module produces photodetector amplifies, exports, and obtains the pulse signal that comprises airborne and particle diameter.
2. a kind of binary channels high-flux dust particle sensor as claimed in claim 1, is characterized in that: described three-way connection is 120 ° of three-way connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420174381.0U CN203929579U (en) | 2014-04-11 | 2014-04-11 | A kind of binary channels high-flux dust particle sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420174381.0U CN203929579U (en) | 2014-04-11 | 2014-04-11 | A kind of binary channels high-flux dust particle sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203929579U true CN203929579U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420174381.0U Withdrawn - After Issue CN203929579U (en) | 2014-04-11 | 2014-04-11 | A kind of binary channels high-flux dust particle sensor |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969161A (en) * | 2014-04-11 | 2014-08-06 | 苏州宏瑞净化科技有限公司 | Double-channel large-flow dust particle sensor |
| CN111630365A (en) * | 2018-02-27 | 2020-09-04 | 松下知识产权经营株式会社 | Particle detection sensor |
| CN113984601A (en) * | 2021-12-28 | 2022-01-28 | 中国电子科技集团公司第二十八研究所 | Environmental dust monitoring system |
-
2014
- 2014-04-11 CN CN201420174381.0U patent/CN203929579U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969161A (en) * | 2014-04-11 | 2014-08-06 | 苏州宏瑞净化科技有限公司 | Double-channel large-flow dust particle sensor |
| CN103969161B (en) * | 2014-04-11 | 2016-07-06 | 苏州宏瑞净化科技有限公司 | A kind of dual pathways high-flux dust particle sensor |
| CN111630365A (en) * | 2018-02-27 | 2020-09-04 | 松下知识产权经营株式会社 | Particle detection sensor |
| CN111630365B (en) * | 2018-02-27 | 2023-02-24 | 松下知识产权经营株式会社 | Particle detection sensor |
| CN113984601A (en) * | 2021-12-28 | 2022-01-28 | 中国电子科技集团公司第二十八研究所 | Environmental dust monitoring system |
| CN113984601B (en) * | 2021-12-28 | 2022-04-08 | 中国电子科技集团公司第二十八研究所 | Environmental dust monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141105 Effective date of abandoning: 20160706 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |