CN205157386U - Scattering particles thing measuring device before laser - Google Patents
Scattering particles thing measuring device before laser Download PDFInfo
- Publication number
- CN205157386U CN205157386U CN201520922077.4U CN201520922077U CN205157386U CN 205157386 U CN205157386 U CN 205157386U CN 201520922077 U CN201520922077 U CN 201520922077U CN 205157386 U CN205157386 U CN 205157386U
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- China
- Prior art keywords
- laser
- air chamber
- scattering particles
- hole
- particles thing
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- 239000002245 particle Substances 0.000 title claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims description 18
- 230000001681 protective effect Effects 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
- 239000000779 smoke Substances 0.000 abstract description 7
- 239000000428 dust Substances 0.000 abstract description 6
- 239000013618 particulate matter Substances 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000003500 flue dust Substances 0.000 description 5
- 238000012913 prioritisation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Abstract
The utility model relates to a technical field is measured to the particulate matter, especially relates to a scattering particles thing measuring device before laser, including measuring air chamber laser emission device and receiving arrangement, measure the left end of air chamber and be connected with the laser emission device, measure the right -hand member of air chamber and be connected with receiving arrangement, to measure the air chamber and include laser entry hole and laser -bounce hole, the axis in laser entry hole is less than 90 degrees with the crossing angle in the axis in laser -bounce hole, and receiving arrangement sets up in the dead ahead in laser -bounce hole. Utility model passes through receiving arrangement and receives the laser signal of smoke and dust reflection from the front in laser -bounce hole with certain angle, can obtain stronger reflected signal, and the back transmission measuring sensitivity who compares before in is high, can detect the smoke and dust of ultralow concentration, and the measurement of particulate matter simultaneously receives external disturbance little in inclosed space, and measurement accuracy is high, and compact structure installs simply.
Description
Technical field
The utility model relates to particle field of measuring technique, particularly relates to scattering particles thing measurement mechanism before a kind of laser.
Background technology
What current particulate matter measuring apparatus adopted is all rear scattering principle, and instrument is launched beam of laser signal and passed through flue, irradiates smoke particle, irradiated smoke particle reflected laser signals, and the intensity of reflected signal becomes with dust concentration and just changes.After the weak point of this principle is smoke particle reflected laser signals, scattering receives more weak, sensitivity is low, discharge for some ultralow flue dust cannot detect, it is larger by extraneous interference that next laser directly passes through flue, the reflected signal that walling of flue produces also can be received instrument and receive, thus disturbs the measurement of instrument to dust concentration true in flue.
Utility model content
The technical problems to be solved in the utility model is to provide scattering particles thing measurement mechanism before a kind of laser that can obtain compared with strong reflection signal.
The technical scheme realizing the utility model object is: scattering particles thing measurement mechanism before a kind of laser, comprise and measure air chamber laser beam emitting device and receiving trap, the left end measuring air chamber is connected with laser beam emitting device, the right-hand member measuring air chamber is connected with receiving trap, measure air chamber and comprise laser entrance aperture and laser reflection hole, the angle that the axis of laser entrance aperture is crossing with the axis in laser reflection hole is less than 90 degree, and receiving trap is arranged at the dead ahead in laser reflection hole.
As prioritization scheme of the present utility model, the left end measuring air chamber is provided with laser heat insulation, and laser entrance aperture is arranged on laser heat insulation.
As prioritization scheme of the present utility model, laser entrance aperture is provided with laser radiation eyeglass.
As prioritization scheme of the present utility model, the right-hand member measuring air chamber is provided with reception heat insulation, and laser reflection hole is arranged on and receives on heat insulation.
As prioritization scheme of the present utility model, laser reflection hole is provided with reception protective lens.
The utility model has positive effect: the utility model receives the laser signal of flue dust reflection at a certain angle from the front in laser reflection hole by receiving trap, stronger reflected signal can be obtained, compared to before rear emission measurement highly sensitive, the flue dust of super low concentration can be detected, the measurement of particle is in airtight space simultaneously, and little by external interference, measuring accuracy is high, compact conformation, installs simple.
Accompanying drawing explanation
In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail:
Fig. 1 is structural drawing of the present utility model;
Fig. 2 is the assembly drawing of this practicality.
Wherein: 1, measure air chamber, 2, laser beam emitting device, 3, receiving trap, 11, laser entrance aperture, 12, laser reflection hole, 4, laser heat insulation, 5, laser radiation eyeglass, 6, receive heat insulation, 7, protective lens is received.
Embodiment
As depicted in figs. 1 and 2, the utility model discloses scattering particles thing measurement mechanism before a kind of laser, comprise and measure air chamber 1, laser beam emitting device 2 and receiving trap 3, the left end measuring air chamber 1 is connected with laser beam emitting device 2, the right-hand member measuring air chamber 1 is connected with receiving trap 3, measure air chamber 1 and comprise laser entrance aperture 11 and laser reflection hole 12, the angle that the axis of laser entrance aperture 11 is crossing with the axis in laser reflection hole 12 is less than 90 degree, and receiving trap 3 is arranged at the dead ahead in laser reflection hole 12.Wherein, measure the inspection that air chamber 1 is mainly used in flue dust, measure with the external world completely isolated, not by the interference of extraneous factor, thus improve the measuring accuracy of receiving trap 3.
The left end measuring air chamber 1 is provided with laser heat insulation 4, and laser entrance aperture 11 is arranged on laser heat insulation 4.Laser entrance aperture 11 is provided with laser radiation eyeglass 5.
The right-hand member measuring air chamber 1 is provided with and receives heat insulation 6, and laser reflection hole 12 is arranged on and receives on heat insulation 6, laser reflection hole 12 is provided with and receives protective lens 7.
Wherein, laser heat insulation 4 and receive heat insulation 6 can the thermal source of blocking laser, scattering particles thing measurement mechanism before effective protection laser.The camera lens of laser beam emitting device 2 protected by laser radiation eyeglass 5, receives the camera lens that protective lens 7 protects receiving trap 3.
During use, connect laser beam emitting device 2, laser heat insulation 4 with screw, measure air chamber 1, receive heat insulation 6 and receiving trap 3 successively, laser beam emitting device 2 launches beam of laser signal through measuring air chamber 1, irradiate the smoke particle measured in air chamber 1, the laser signal of irradiated smoke particle reflection, receiving trap 3 receives the laser signal of flue dust reflection at a certain angle from the front in laser reflection hole 12, the signal intensity of reflection becomes with dust concentration and just changes, and can be calculated the concentration value of air flue soot dust by specific algorithm.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. scattering particles thing measurement mechanism before a laser, it is characterized in that: comprise and measure air chamber (1), laser beam emitting device (2) and receiving trap (3), the left end measuring air chamber (1) is connected with laser beam emitting device (2), the right-hand member measuring air chamber (1) is connected with receiving trap (3), described measurement air chamber (1) comprises laser entrance aperture (11) and laser reflection hole (12), the angle that the axis of laser entrance aperture (11) is crossing with the axis of laser reflection hole (12) is less than 90 degree, described receiving trap (3) is arranged at the dead ahead of laser reflection hole (12).
2. scattering particles thing measurement mechanism before a kind of laser according to claim 1, it is characterized in that: the left end measuring air chamber (1) is provided with laser heat insulation (4), and described laser entrance aperture (11) is arranged on laser heat insulation (4).
3. scattering particles thing measurement mechanism before a kind of laser according to claim 2, is characterized in that: described laser entrance aperture (11) is provided with laser radiation eyeglass (5).
4. scattering particles thing measurement mechanism before a kind of laser according to claim 1, it is characterized in that: the right-hand member measuring air chamber (1) is provided with and receives heat insulation (6), described laser reflection hole (12) is arranged on and receives on heat insulation (6).
5. scattering particles thing measurement mechanism before a kind of laser according to claim 4, is characterized in that: described laser reflection hole (12) is provided with and receives protective lens (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520922077.4U CN205157386U (en) | 2015-11-18 | 2015-11-18 | Scattering particles thing measuring device before laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520922077.4U CN205157386U (en) | 2015-11-18 | 2015-11-18 | Scattering particles thing measuring device before laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205157386U true CN205157386U (en) | 2016-04-13 |
Family
ID=55693065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520922077.4U Active CN205157386U (en) | 2015-11-18 | 2015-11-18 | Scattering particles thing measuring device before laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205157386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418840A (en) * | 2021-06-22 | 2021-09-21 | 西石(厦门)科技股份有限公司 | Gas detection device and vehicle-mounted tail gas detection system |
-
2015
- 2015-11-18 CN CN201520922077.4U patent/CN205157386U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418840A (en) * | 2021-06-22 | 2021-09-21 | 西石(厦门)科技股份有限公司 | Gas detection device and vehicle-mounted tail gas detection system |
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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: 20200703 Address after: 101A, 1 / F, unit 2, building 14, yard 3, gaolizhang Road, Haidian District, Beijing 100095 Patentee after: ANRONX TECHNOLOGY (BEJING) Co.,Ltd. Address before: 211100 Jiangsu city of Nanjing province Jiangning economic and Technological Development Zone, Mo Zhou Road No. 9 Patentee before: NANJING ANRONGXIN ELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 2909, 25th Floor, Building A, No. 2 Zhongguancun South Street, Haidian District, Beijing, 100086 Patentee after: Anrongxin Technology (Beijing) Co.,Ltd. Address before: 100095 101A, 1 / F, unit 2, building 14, yard 3, gaolizhang Road, Haidian District, Beijing Patentee before: ANRONX TECHNOLOGY (BEJING) CO.,LTD. |