CN201607405U - Space dust concentration sensor - Google Patents
Space dust concentration sensor Download PDFInfo
- Publication number
- CN201607405U CN201607405U CN2010201337005U CN201020133700U CN201607405U CN 201607405 U CN201607405 U CN 201607405U CN 2010201337005 U CN2010201337005 U CN 2010201337005U CN 201020133700 U CN201020133700 U CN 201020133700U CN 201607405 U CN201607405 U CN 201607405U
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- Prior art keywords
- dust
- semi
- dust concentration
- base
- anger
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- Expired - Fee Related
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Abstract
The utility model discloses a space dust concentration sensor, which comprises a transmitting unit and a receiving unit which are oppositely mounted on two sides of a base. The transmitting unit includes an emission photodiode, and a semi-convex lens is arranged in the front of the emission photodiode; the receiving unit includes a photoelectric receiving triode, and a semi-convex lens is disposed in the front of the photoelectric receiving triode; an optical glass window is respectively arranged in the fronts of the semi-convex lenses; and the emission photodiode and the photoelectric receiving triode are connected with a power supply plug disposed on the base via wires. By employing the theory that intensity of powder scattered light is directly proportional to mass concentration under certain conditions, the space dust concentration sensor can directly measure mass concentration of dust via presetting photoelectric characteristic values of the dust, is usable in dust occasions such as food processing industry, chemical industry, coal industry and the like, and is capable of continuously detecting space dust concentration, accordingly preventing dust concentration from being out of limit, guaranteeing personal health of working staff, and preventing explosion accidents caused by the dust being out of limit.
Description
Technical field
The utility model relates to a kind of dust concentration determinator, is specifically related to a kind of space dust concentration sensor.
Background technology
At present, the mensuration of space dust concentration adopts pump negative inspiratory pressure mode mostly, draws the certain volume dust laden air, by the filter membrane laying dust, the laying dust amount of weighing determines space dust concentration thus, this mode can not the METHOD FOR CONTINUOUS DETERMINATION dust concentration, can't be used for the continuous monitoring of dust concentration.Other has the employing photovoltaic principals, with pump negative inspiratory pressure mode, makes dust laden air pass through the photoelectricity test darkroom, gives the dust irradiates light that swims in the darkroom, by the mass concentration of scattered light intensity test dust.Though this kind mode can be carried out continuous monitoring to space dust concentration, it has following weak point: 1) pump suction mode increases the sensor use cost; 2) sensor is easily contaminated; 3) error at measurment is big.
The utility model content
The purpose of this utility model is the deficiency that exists at prior art, provide a kind of measure the precision height, can continuous monitoring, pollution-free, space dust concentration sensor that cost is low.
The technical solution of the utility model is: a kind of space dust concentration sensor, it is characterized in that: comprise the transmitter unit and the receiving element that are installed in relatively on the base both sides, described transmitter unit comprises photoemission diode, the front portion of photoemission diode is provided with semi-convex lens, receiving element comprises that photoelectricity receives triode, and the front portion that photoelectricity receives triode is provided with semi-convex lens; The front portion of described semi-convex lens is provided with optical windshield, and described photoemission diode and photoelectricity receive triode and is connected with attaching plug on being arranged on base by lead.
The arranged outside of the described optical windshield fair water fin of calming the anger, the fair water fin and be arranged on calming the anger on the base conduit of calming the anger is set between the draft tube of calming the anger, the conduit of calming the anger is installed on the base.
The section of described base is U-shaped or concave cross section.
The utility model compared with prior art has the following advantages:
(1) the utility model is reasonable in design, and is simple in structure, but adopts photovoltaic principals continuous monitoring space dust concentration;
(2) be positioned at the semi-convex lens that photoemission diode and photoelectricity receives the triode front portion and can effectively increase transmitting terminal luminous spot area, improve the reception facula area of receiving end, increase the logical volume of measuring of light, improve and measure precision;
(3) prevent the purging system of calming the anger of dust pollution, make the surface of the optical windshield of calm the anger continuous inswept sensor emission, receiving end, form a dustproof air film on the surface of optical windshield, both guaranteed that sensor emission, iSCSI receiving end window be not by dust pollution, the dust laden air in flow-disturbing sensor test space has not again guaranteed the measuring accuracy of sensor.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Description of reference numerals:
The 1-base; The 2-transmitter unit; The 3-receiving element; The 4-photoemission diode;
5-photoelectricity receives triode; The semi-convex lens of 6-; The 7-optical windshield; The 8-fair water fin of calming the anger;
The 9-conduit of calming the anger; The 10-lead; The 11-draft tube of calming the anger; The 12-attaching plug.
Embodiment
A kind of space dust concentration sensor as shown in Figure 1, comprise the transmitter unit 2 and the receiving element 3 that are installed in relatively on the base both sides, described transmitter unit 2 comprises photoemission diode 4, the front portion of photoemission diode 4 is provided with semi-convex lens 6, and the front portion of semi-convex lens 6 is provided with optical windshield 7; Receiving element 3 comprises that photoelectricity receives triode 5, and the front portion that photoelectricity receives triode 5 is provided with semi-convex lens 6, and the front portion of semi-convex lens 6 is provided with optical windshield 7.Described photoemission diode 4 and photoelectricity receive triode 5 and are connected with attaching plug 12 on being arranged on base 1 by lead 10.
As shown in Figure 1, the arranged outside of optical windshield 7 fair water fin 8 of calming the anger, the fair water fin 8 and be arranged on calming the anger on the base 1 conduit 9 of calming the anger is set between the draft tube 11 of calming the anger, the conduit 9 of calming the anger is installed on the base 1.
The section of base 1 is U-shaped or concave cross section.
The utility model is installed in the dust laden air, receive triode 5 power supplies for photoemission diode 4 and photoelectricity by lead 10 during work, photoemission diode 4 produces the light of certain intensity, form a parallel beam by semi-convex lens 6, light beam passes the dust laden air of the dust-laden test space through optical windshield 7, enter the optical windshield 7 of receiving element 3, focus on photoelectricity by semi-convex lens 6 and receive triode 5 source points, photoelectricity receives triode 5 output photocurrents, is exported by the size of photocurrent and is converted to space dust concentration.For in time eliminating the pollution of space dust to optical windshield 7, the lateral surface of optical windshield 7 is provided with the fair water fin 8 of calming the anger, by the air-flow of fair water fin 8 inside of calming the anger, can prevent dust attached on the optical windshield 7, thereby guarantee the measuring accuracy of sensor.
Claims (3)
1. space dust concentration sensor, it is characterized in that: comprise the transmitter unit (2) and the receiving element (3) that are installed in relatively on base (1) both sides, described transmitter unit (2) comprises photoemission diode (4), the front portion of photoemission diode (4) is provided with semi-convex lens (6), receiving element (3) comprises that photoelectricity receives triode (5), and the front portion that photoelectricity receives triode (5) is provided with semi-convex lens (6); The front portion of described semi-convex lens (6) is provided with optical windshield (7), and described photoemission diode (4) and photoelectricity receive triode (5) and is connected with attaching plug (12) on being arranged on base (1) by lead (10).
2. space dust concentration sensor according to claim 1, it is characterized in that: the arranged outside of described optical windshield (7) fair water fin (8) of calming the anger, calm the anger fair water fin (8) and be arranged on the conduit (9) of calming the anger is set between the draft tube of calming the anger (11) on the base (1), the conduit of calming the anger (9) is installed on the base (1).
3. space dust concentration sensor according to claim 1 and 2 is characterized in that: the section of described base (1) is U-shaped or concave cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201337005U CN201607405U (en) | 2010-03-17 | 2010-03-17 | Space dust concentration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201337005U CN201607405U (en) | 2010-03-17 | 2010-03-17 | Space dust concentration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201607405U true CN201607405U (en) | 2010-10-13 |
Family
ID=42952110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201337005U Expired - Fee Related CN201607405U (en) | 2010-03-17 | 2010-03-17 | Space dust concentration sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201607405U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645161A (en) * | 2013-11-16 | 2014-03-19 | 中山欧麦克仪器设备有限公司 | Turbidity detecting device |
| CN106152211A (en) * | 2016-03-29 | 2016-11-23 | 宁波方太厨具有限公司 | A kind of real-time oil smoke concentration monitoring system and application have the lampblack absorber of this system |
| CN108507913A (en) * | 2017-02-27 | 2018-09-07 | 松下知识产权经营株式会社 | Dust sensor |
-
2010
- 2010-03-17 CN CN2010201337005U patent/CN201607405U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645161A (en) * | 2013-11-16 | 2014-03-19 | 中山欧麦克仪器设备有限公司 | Turbidity detecting device |
| CN106152211A (en) * | 2016-03-29 | 2016-11-23 | 宁波方太厨具有限公司 | A kind of real-time oil smoke concentration monitoring system and application have the lampblack absorber of this system |
| CN106152211B (en) * | 2016-03-29 | 2019-02-15 | 宁波方太厨具有限公司 | A kind of real-time oil smoke concentration monitoring system and application have the kitchen ventilator of the system |
| CN108507913A (en) * | 2017-02-27 | 2018-09-07 | 松下知识产权经营株式会社 | Dust 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: 20101013 Termination date: 20110317 |