CN205898618U - Dust detection device - Google Patents
Dust detection device Download PDFInfo
- Publication number
- CN205898618U CN205898618U CN201620656412.5U CN201620656412U CN205898618U CN 205898618 U CN205898618 U CN 205898618U CN 201620656412 U CN201620656412 U CN 201620656412U CN 205898618 U CN205898618 U CN 205898618U
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- China
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- optical axis
- light
- group
- data
- luminous group
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Abstract
The utility model relates to a dust detection device, include: the casing of shading to and set up luminous group in the casing, two photics groups and transparent airflow channel, the optical axis line of luminous group and two the optical axis line of photic group intersects in the same point of intersect, and airflow channel's axis is located nodical department, luminous group include laser instrument and the lens that set gradually along the light direction of propagation of its optical axis line, and photic group includes lens and the photic ware that sets gradually along the light direction of propagation of its optical axis. Through setting up two photic groups, can obtain two sets of dust concentration data simultaneously, can compare or get the mean value through the data on backstage, obtain more accurate data, and because same sample of the same moment is taken from to two sets of data, and the angle of nevertheless sample is different, consequently can avoid the measured data who only has a set of data to bring undulant great, detect the unstable circumstances, further carry the high -precision degree.
Description
Technical field
This utility model is related to a kind of environmental health detection means, more particularly, to a kind of dust investigating.
Background technology
The environment occupational health condition of working space needs to be protected, and how to guarantee that the dust concentration of working space is true
Determine whether dust content meets national standard and the industry standard technical issues that need to address.There is quick detection in prior art
The sensor device of dust, but the stability of its detection and progress are all poor, need a kind of stability and degree of accuracy all higher
Testing equipment.
Content of the invention
This utility model overcomes the deficiencies in the prior art, provides a kind of structure simple dust investigating.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is: a kind of dust investigating, comprising: shading
Housing, and be arranged in housing luminous group, two light groups and transparent gas channel it is characterised in that described
The optical axis of the optical axis of light group and two described light groups intersect at same intersection point, and the axis of described gas channel is positioned at described
Point of intersection, described luminous group includes laser instrument and the lens setting gradually along the light direction of propagation of its optical axis, described light
Group includes lens and the light-receiving device setting gradually along the light direction of propagation of its optical axis.
In one preferred embodiment of this utility model, the optical axis stating luminous group are equal with the optical axis of two described light groups
It is generally aligned in the same plane, the axis of described gas channel is perpendicular to described plane.
In one preferred embodiment of this utility model, the optical axis of described luminous group of optical axis and two described light groups
Between angle be obtuse angle.
In one preferred embodiment of this utility model, described light-receiving device is optical-electrical converter, and it can be by the light receiving
Line is converted into current signal.
In one preferred embodiment of this utility model, described glass tubing is all sprayed with black-out paint in the position passing in and out described housing
Face.
In one preferred embodiment of this utility model, described glass tubing is respectively provided with bending knot in the position passing in and out described housing
Structure.
This utility model solves defect present in background technology, and this utility model possesses following beneficial effect:
(1) pass through to arrange two light groups, two groups of dust concentration data can be obtained simultaneously, can be by the data on backstage
Compare or take average, obtain more accurate data, and because two groups of data take from synchronization same sample, but sampling
Angle is different, the measurement data fluctuation that only one group data is brought therefore can be avoided larger, detect unstable situation, enter one
Step improves degree of accuracy.
(2) so that light keeping parallelism in light shafts, the directional light of formation is irradiated to glass for the lens of the group that lights
In pipe, Detection results are more preferable.
(3) so that light collection in light shafts, the converged light of formation is easily photoelectrically converted the lens of light group
Device receives, and then obtains data.
(4) lacquer painting of the housing of shading and shading all can ensure that ambient will not enter into detection zone, so keeps away
Exempt from the interference of detection process ambient, detection is more accurate.
(5) bending structure ensures that light will not continue to travel to detection zone after being irradiated into glass tubing, it is to avoid detection
It is affected.
Brief description
With reference to the accompanying drawings and examples this utility model is further illustrated；
Fig. 1 is the structural representation of preferred embodiment of the present utility model；
In figure: 1, housing, 2, luminous group, 3, light group, 4, lens, 5, optical-electrical converter, 6, optical axis, 7, glass tubing,
8th, dust, 9, laser instrument.
Specific embodiment
Presently in connection with drawings and Examples, this utility model is described in further detail, these accompanying drawings are simplification
Schematic diagram, only illustrates basic structure of the present utility model in a schematic way, and therefore it only shows the structure relevant with this utility model
Become.
As shown in figure 1, a kind of dust 8 detection means, comprising: the housing 1 of shading, and it is arranged on luminous in housing 1
2, two light groups 3 of group and transparent glass tubing 7, the luminous optical axis 6 of group 2 and the optical axis 6 of two light groups 3 intersect at same
One intersection point, the axis of glass tubing 7 is located at point of intersection, and luminous group 2 includes setting gradually along the light direction of propagation of its optical axis 6
Laser instrument 9 and lens 4, light group 3 includes lens 4 and the optical-electrical converter 5 setting gradually along the light direction of propagation of its optical axis.
So that light keeping parallelism in light shafts, the directional light of formation is irradiated in glass tubing 7, detection for the lens 4 of luminous group 2
Effect is more preferable.
By arranging two light groups 3, two groups of dust 8 concentration datas can be obtained simultaneously, can be by the data on backstage
Compare or take average, obtain more accurate data, and because two groups of data take from synchronization same sample, but sampling
Angle is different, the measurement data fluctuation that only one group data is brought therefore can be avoided larger, detect unstable situation, enter one
Step improves degree of accuracy.
The luminous optical axis 6 of group 2 and the optical axis 6 of two light groups 3 are respectively positioned on same plane, and the axis of gas channel hangs down
Straight angle between plane, the optical axis 6 of luminous group 2 and the optical axis 6 of two light groups 3 is obtuse angle.Obtuse angle is preferred
120 °, so can form preferable detection angles.The lens 4 of light group 3, so that light collection in light shafts, are formed
The converged light device 5 that is easily photoelectrically converted receive, and then obtain data.
The light receiving can be converted into current signal by optical-electrical converter 5, after current signal is amplified by amplifier
Being converted into digital signal, and export and draw dust 8 concentration data.
Glass tubing 7 is all sprayed with shading lacquer painting in the position of turnover housing 1, and glass tubing 7 is respectively provided with the position of turnover housing 1
Bending structure.Bending structure ensures that light will not continue to travel to detection zone after being irradiated into glass tubing 7, it is to avoid detection is subject to
To impact.The lacquer painting of the housing 1 of shading and shading all can ensure that ambient will not enter into detection zone, this avoid
The interference of detection process ambient, detection is more accurate.
Above according to desirable embodiment of the present utility model for enlightening, by above-mentioned description, related personnel is complete
Various change and modification can be carried out in the range of without departing from this utility model technological thought.This utility model
The content that is not limited in description of technical scope it is necessary to technical scope is determined according to right.
Claims (6)
1. a kind of dust investigating, comprising: the housing of shading, and be arranged in housing luminous group, two light groups and
Transparent gas channel is it is characterised in that the optical axis of described luminous group of optical axis and two described light groups intersect at together
One intersection point, the axis of described gas channel is located at described point of intersection, the described luminous group light propagation side including along its optical axis
To the laser instrument setting gradually and lens, described light group include the lens that set gradually along the light direction of propagation of its optical axis and
Light-receiving device.
2. dust investigating according to claim 1 it is characterised in that: described in described luminous group of optical axis and two
The optical axis of light group are respectively positioned on same plane, and the axis of described gas channel is perpendicular to described plane.
3. dust investigating according to claim 1 it is characterised in that: described in described luminous group of optical axis and two
Angle between the optical axis of light group is obtuse angle.
4. dust investigating according to claim 1 it is characterised in that: described light-receiving device be optical-electrical converter, its energy
Enough the light receiving is converted into current signal.
5. dust investigating according to claim 1 it is characterised in that: described gas channel be glass tubing, described glass
Glass pipe is all sprayed with shading lacquer painting in the position passing in and out described housing.
6. dust investigating according to claim 5 it is characterised in that: described glass tubing pass in and out described housing position
Put and be respectively provided with bending structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620656412.5U CN205898618U (en) | 2016-06-29 | 2016-06-29 | Dust detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620656412.5U CN205898618U (en) | 2016-06-29 | 2016-06-29 | Dust detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205898618U true CN205898618U (en) | 2017-01-18 |
Family
ID=57770117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620656412.5U Active CN205898618U (en) | 2016-06-29 | 2016-06-29 | Dust detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205898618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030295A (en) * | 2018-08-30 | 2018-12-18 | 安徽乐锦记食品有限公司 | A kind of bread processing anomaly alarming device smog extraction detection device |
-
2016
- 2016-06-29 CN CN201620656412.5U patent/CN205898618U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030295A (en) * | 2018-08-30 | 2018-12-18 | 安徽乐锦记食品有限公司 | A kind of bread processing anomaly alarming device smog extraction detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |