CN205003052U - Laser dust sensor - Google Patents
Laser dust sensor Download PDFInfo
- Publication number
- CN205003052U CN205003052U CN201520674463.6U CN201520674463U CN205003052U CN 205003052 U CN205003052 U CN 205003052U CN 201520674463 U CN201520674463 U CN 201520674463U CN 205003052 U CN205003052 U CN 205003052U
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- CN
- China
- Prior art keywords
- laser
- groove
- circuit board
- dust sensor
- housing
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- Expired - Fee Related
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Abstract
The utility model discloses a laser dust sensor, including casing, laser emitter, be provided with the air intake on the front end side of casing, be provided with rotary wind channel, laser seat groove in the casing and bleed the groove, the air intake link up with the rotary wind channel that is located the casing mutually, the left side in gyration wind channel has set gradually laser seat groove from the top down and has bled the groove, the gyration wind channel is all link up with laser seat groove, the groove of bleeding mutually, laser emitter places in the round hole of seting up on the laser seat, laser emitter places at laser seat inslot together with the laser seat, a circuit board has been placed to the higher authority of casing, has offered the exhaust hole on the circuit board, and the right side in exhaust hole is provided with laser receiver, be provided with the fan with the corresponding department in exhaust hole on the circuit board. The utility model discloses a design of fan bleeder to adopting the gyration wind channel as airflow channel, reaching the stable effect of admitting air, feasible measurement is more accurate, sensitivity is high, long service life and cost are hanged down.
Description
Technical field
The utility model relates to a kind of sensor, particularly relates to a kind of laser dust sensor, belongs to dust measurement technical field.
Background technology
At present, laser dust sensor is often adopted to carry out the measurement of dust granules at the Work places that the Dust Capacity such as mine, cement mill is larger, but existing laser dust sensor due to structural design unreasonable, measure inaccurate during use, sensitivity is lower, and measuring accuracy can decline by straight line after using a period of time, physical life is short and cost is high.
Utility model content
In order to solve the weak point existing for above-mentioned technology, the utility model discloses a kind of laser dust sensor.
In order to solve above technical matters, the technical solution adopted in the utility model is: a kind of laser dust sensor, comprises housing, generating laser; The side, front end of housing is provided with air inlet; Revolution air channel, laser bench groove and groove of bleeding is provided with in housing; Air inlet connects with the revolution air channel being positioned at housing; The left side in revolution air channel is disposed with laser bench groove and groove of bleeding from the top down; Revolution air channel all connects with laser bench groove, groove of bleeding;
Generating laser is placed in circular hole that laser bench is offered; Generating laser is placed in laser bench groove together with laser bench; Be placed with one piece of circuit board above housing, circuit board offers vent port, and the right side of vent port is provided with laser pickoff; On circuit board and vent port corresponding section is provided with fan.
Two madial walls in revolution air channel offer two symmetrical light holes.Light hole is divided into left light hole and right light hole.
The laser beam emitting head of generating laser is corresponding with two light holes.Laser pickoff 12 is positioned at the middle upper part of laser bench groove 2 and left side light hole.
Groove of bleeding in housing is corresponding with the vent port on circuit board.The direction of laser bench groove is vertical with the left side plan in revolution air channel.Angle between laser bench groove and the edge of housing is 20 ~ 75 °.
The utility model adopts the design of fan bleeder, and adopts revolution air channel as gas channel, can reach the effect that air inlet is stable, makes to measure more accurate, highly sensitive, long service life and cost is low.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is decomposition texture schematic diagram of the present utility model.
In figure: 1, housing; 2, laser bench groove; 3, to bleed groove; 4, laser bench; 5, generating laser; 6, air channel is turned round; 7, light hole; 8, air inlet; 9, fan; 10, vent port; 11, circuit board; 12, laser pickoff; 13, left side plan.
Embodiment
As shown in Figure 1, the utility model comprise housing 1, laser bench groove 2, groove 3 of bleeding, laser bench 4, generating laser 5, revolution air channel 6, light hole 7, air inlet 8, fan 9, vent port 10, circuit board 11 and laser pickoff 12.
The side, front end of housing 1 is provided with air inlet 8, and air inlet 8 connects with the revolution air channel 6 being positioned at housing; The left side in revolution air channel 6 is disposed with laser bench groove 2 and groove 3 of bleeding from the top down; Revolution air channel 6 all connects with laser bench groove 2, groove 3 of bleeding.Generating laser 5 is placed in circular hole that laser bench 4 is offered; Generating laser 5 is placed in laser bench groove 2 together with laser bench 4; Two madial walls in revolution air channel 6 offer two symmetrical light holes 7.Light hole 7 is divided into left light hole and right light hole.
The laser beam emitting head of generating laser 5 and two light holes 7 corresponding.Laser pickoff 12 is positioned at the middle upper part of laser bench groove 2 and left side light hole.
The vent port 10 of bleeding on groove 3 and circuit board 11 in housing 1 is corresponding.The direction of laser bench groove 2 is vertical with the left side plan 13 in revolution air channel 6.
Be placed with one piece of circuit board 11 above housing 1, circuit board 11 offers vent port 10, the right side of vent port 10 is provided with laser pickoff 12, and laser pickoff 12 is positioned at the middle upper part of two light holes 7.On circuit board 11 and vent port corresponding section is provided with fan 9.Circuit board and housing are wrapped up by rotary type handware.
Generating laser 5 is for Emission Lasers and the air-flow to be detected turning round air channel 6 is passed through in irradiation.Laser pickoff 12 reflects the light signal of generation and produces corresponding electric signal for receiving laser and irradiating the powder dust particle in air-flow, circuit board also has certain diameter sized particles and concentration for the treatment of electric signal to obtain in air-flow.
Angle between the edge of laser bench groove 2 and housing 1 is 20 ~ 75 °, reflects layer by layer and goes out from air inlet, and can not be reflected back in light hole 7 when making laser beam be mapped to the right air path of turning round in air channel.
Right air path in revolution air channel and the bottom surface out of plumb of housing 1, make can not be reflected back in light hole 7 when being mapped to right air path face by the laser beam of light hole 7.
Principle of work of the present utility model:
The track route of air arrives for passing into revolution air channel from air inlet groove of bleeding.Minor diameter dust granules in air enters through air inlet and eventually passes vent port and emit, granule in air irradiates by generating laser, the most of light be not irradiated on granule is irradiated on revolution wind path wall by light hole, and discharges; The light that generating laser penetrates is due to the effect of dust, and light path of light is changed, and a part is mapped on laser pickoff, thus learns the size and number of particle in air.
Above-mentioned embodiment is not to restriction of the present utility model; the utility model is also not limited in above-mentioned citing; the change that those skilled in the art make within the scope of the technical solution of the utility model, remodeling, interpolation or replacement, also all belong to protection domain of the present utility model.
Claims (7)
1. a laser dust sensor, comprises housing (1), it is characterized in that: it also comprises generating laser (5); The side, front end of described housing (1) is provided with air inlet (8), in housing (1), is provided with revolution air channel (6), laser bench groove (2) and groove of bleeding (3); Described air inlet (8) and the revolution air channel (6) being positioned at housing connect; The left side of revolution air channel (6) is disposed with laser bench groove (2) and groove of bleeding (3) from the top down; Revolution air channel (6) all connects with laser bench groove (2), groove of bleeding (3);
Described generating laser (5) is placed in circular hole that laser bench (4) is offered; Generating laser (5) is placed in laser bench groove (2) together with laser bench (4); Be placed with one piece of circuit board (11) above described housing (1), circuit board (11) offers vent port (10), the right side of vent port (10) is provided with laser pickoff (12); On described circuit board (11) and vent port corresponding section is provided with fan (9).
2. laser dust sensor according to claim 1, is characterized in that: two madial walls of described revolution air channel (6) offer two symmetrical light holes (7); Light hole (7) is divided into left light hole and right light hole.
3. laser dust sensor according to claim 1, is characterized in that: laser beam emitting head and two light holes (7) of described generating laser (5) are corresponding.
4. laser dust sensor according to claim 1, is characterized in that: described laser pickoff (12) is positioned at the middle upper part of laser bench groove (2) and left side light hole.
5. laser dust sensor according to claim 1, is characterized in that: the groove of bleeding (3) in described housing (1) and the vent port (10) on circuit board (11) corresponding.
6. the laser dust sensor according to claim 1 or 4, is characterized in that: the direction of described laser bench groove (2) is vertical with the left side plan (13) of revolution air channel (6).
7. laser dust sensor according to claim 6, is characterized in that: the angle between described laser bench groove (2) and the edge of housing (1) is 20 ~ 75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520674463.6U CN205003052U (en) | 2015-09-02 | 2015-09-02 | Laser dust sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520674463.6U CN205003052U (en) | 2015-09-02 | 2015-09-02 | Laser dust sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205003052U true CN205003052U (en) | 2016-01-27 |
Family
ID=55159935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520674463.6U Expired - Fee Related CN205003052U (en) | 2015-09-02 | 2015-09-02 | Laser dust sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205003052U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572008A (en) * | 2016-03-03 | 2016-05-11 | 张银虎 | Laser dust sensor |
| CN112748051A (en) * | 2020-12-23 | 2021-05-04 | 天津智易时代科技发展有限公司 | Negative pressure type oil smoke probe and detection method thereof |
-
2015
- 2015-09-02 CN CN201520674463.6U patent/CN205003052U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572008A (en) * | 2016-03-03 | 2016-05-11 | 张银虎 | Laser dust sensor |
| CN112748051A (en) * | 2020-12-23 | 2021-05-04 | 天津智易时代科技发展有限公司 | Negative pressure type oil smoke probe and detection method thereof |
| CN112748051B (en) * | 2020-12-23 | 2023-06-23 | 天津智易时代科技发展有限公司 | Negative pressure type oil smoke probe and detection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20160902 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |