CN209559713U - A kind of sensor of dust concentration and dust concentration detection module - Google Patents
A kind of sensor of dust concentration and dust concentration detection module Download PDFInfo
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- CN209559713U CN209559713U CN201920070074.0U CN201920070074U CN209559713U CN 209559713 U CN209559713 U CN 209559713U CN 201920070074 U CN201920070074 U CN 201920070074U CN 209559713 U CN209559713 U CN 209559713U
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- dust concentration
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Abstract
The utility model provides a kind of sensor of dust concentration and dust concentration detection module, belongs to dust concentration detection technique field.The sensor of dust concentration, including light transmitting module and light receiver module, dust concentration detection zone is formed between light transmitting module and light receiver module, the sensor of dust concentration further includes caliberating device, the caliberating device includes translucent construction part and switching part, the translucent construction part includes a translucent construction or at least two translucent constructions with different light transmittances with certain light transmittance, each translucent construction in the switching part and translucent construction part, which assembles, to be arranged, for by any one translucent construction switching in translucent construction part to the light path between light transmitting module and light receiver module.Not only be able to achieve the measurement of dust concentration using the sensor of dust concentration, but also be able to achieve precision calibration, and precision calibration can real-time perfoming as needed, it is easy to operate simple and direct.
Description
Technical field
The utility model relates to a kind of sensor of dust concentration and dust concentration detection module, belong to dust concentration detection skill
Art field.
Background technique
Application publication number is CN106769718A, the patent of entitled " dust investigating and dust detection method "
Application documents, disclose a kind of dust investigating, including light transmitting module and light receiver module, light transmitting module and
Dust concentration detection zone is formed between light receiver module, is formed with test chamber, test chamber in the dust concentration detection zone
Dust air-flow to be measured is inside flowed through.The dust investigating can effectively detect dust concentration, still, as dust is examined
The growth that device uses the time is surveyed, the measurement accuracy of dust investigating can gradually decrease, when measurement accuracy is reduced to certain journey
When spending, it is necessary to carry out precision calibration to the dust investigating after long-time use.
Current precision calibration mode usually carries out precision to dust investigating using special precision calibration equipment
Calibration, since both equipment needs are used cooperatively, it is therefore desirable to spend longer time in equipment adjustment, test, it can not
Carry out precision calibration immediately when needing to carry out precision calibration, moreover, this mode needs special precision calibration equipment,
Input cost is higher.
Utility model content
The purpose of the utility model is to provide a kind of sensor of dust concentration and dust concentration detection module, to solve benefit
The mode of precision calibration is carried out to dust investigating with special precision calibration equipment, can not need to carry out precision calibration
When the problem of carrying out precision calibration immediately.
To achieve the above object, the utility model provides a kind of sensor of dust concentration, including light transmitting module and
Light receiver module forms dust concentration detection zone, the dust concentration between light transmitting module and light receiver module
Sensor further includes caliberating device, and the caliberating device includes translucent construction part and switching part, the translucent construction part
Translucent construction or at least two translucent constructions with different light transmittances including one with certain light transmittance, the switching
Part and each translucent construction in translucent construction part, which assemble, to be arranged, for by any one light transmission knot in translucent construction part
On structure switching to the light path between light transmitting module and light receiver module.
The beneficial effect of the sensor of dust concentration of the utility model is: since sensor of dust concentration is filled from bandgap calibration
It sets, when needing to carry out precision calibration, that is, passes through switching part for any one translucent construction switching with certain light transmittance
Onto the light path between light transmitting module and light receiver module, simulated using the translucent construction with certain light transmittance
Dust concentration completes a precision calibration, by the translucent construction of switching difference light transmittance, under achievable different dusts concentration
Precision calibration；After the completion of precision calibration, make its do not shut out the light transmitting module and light receiver mould by adjusting caliberating device
Light path between block, that is, can proceed with powder concentration measurement；It can be seen that the dust concentration using the utility model passes
Sensor had not only been able to achieve the measurement of dust concentration, but also was able to achieve precision calibration, and precision calibration can real-time perfoming as needed, behaviour
Work facilitate it is simple and direct, and be not necessarily to special precision calibration equipment, reduce input cost, meanwhile, which is nothing
Dirt calibration, it is environmental clean.
In order to provide the implementation of the translucent construction with certain light transmittance, so as to simulating dust concentration, to realize
The precision calibration of sensor of dust concentration, as a kind of improvement to above-mentioned sensor of dust concentration, the translucent construction is
Mirror or optical filter.
It is improved as the another kind to above-mentioned sensor of dust concentration, the switching part includes turntable, and edge turns on turntable
Disk circumferentially offers light passing region and translucent construction identical with translucent construction number dress for penetrating the light path
Distribution, each translucent construction are fixedly mounted in corresponding translucent construction pilot hole.
It, can be by the translucent construction switching with different light transmittances by rotating turntable when needing to carry out precision calibration
Onto the light path between light transmitting module and light receiver module, to realize sensor of dust concentration in different dusts
Precision calibration under concentration；After the completion of precision calibration, by rotate turntable, by light passing region switching to light transmitting module with
In light path between light receiver module, light path is enable not reached light receiver mould directly by the obstruction of other structures
Block, to carry out the measurement of dust concentration.It can be seen that the structure of the switching part is simple, easy to use.
In order to realize the Fast Calibration of sensor of dust concentration precision, as another to above-mentioned sensor of dust concentration
It improves, the switching part further includes motor and assembles the shaft being arranged to drive turntable to rotate with turntable, the motor
The output shaft transmission connection shaft.
In order to realize the fixation of shaft, as another improvement to above-mentioned sensor of dust concentration, the switching part
It further include the Bearning mechanism for fixed rotating shaft.
Since the light of light transmitting module transmitting can generate scattering light after dust, in order to which the scattering light that will be generated converges
It gathers to be received by light receiver module, as the further improvement to above-mentioned sensor of dust concentration, the dust is dense
Lens group is provided in light path between degree detection zone and the light receiver module.
In order to realize the quantitative detection of dust concentration, as the further improvement to above-mentioned sensor of dust concentration, institute
Stating sensor of dust concentration further includes data processing module, and the output end of the light receiver module connects the data processing mould
Block.
The utility model additionally provides a kind of dust concentration detection module, which includes calibration dress
It sets, the caliberating device includes translucent construction part and switching part, and the translucent construction part, which includes one, to be had centainly thoroughly
The translucent construction of light rate or at least two translucent constructions with different light transmittances, the switching part and translucent construction part
In each translucent construction assemble setting, for by any one translucent construction switching in translucent construction part to light transmitting mould
In light path between block and light receiver module.
The beneficial effect of the dust concentration detection module of the utility model is: since dust concentration detection module includes calibration
Device is thrown any one translucent construction with certain light transmittance by switching part when needing to carry out precision calibration
It switches in the light path between light transmitting module and light receiver module, utilizes the translucent construction mould with certain light transmittance
Quasi- dust concentration, completes a precision calibration, by the translucent construction of switching difference light transmittance, under achievable different dusts concentration
Precision calibration so that precision calibration can real-time perfoming as needed, it is easy to operate simple and direct, and be not necessarily to special precision calibration
Equipment reduces input cost, meanwhile, which is dustless calibration, environmental clean.
In order to provide the implementation of the translucent construction with certain light transmittance, so as to simulating dust concentration, to realize
Precision calibration, as a kind of improvement to above-mentioned dust concentration detection module, the translucent construction is lens or optical filter.
It is improved as the another kind to above-mentioned dust concentration detection module, the switching part includes turntable, edge on turntable
Turntable circumferentially offers light passing region and translucent construction identical with translucent construction number for penetrating the light path
Pilot hole, each translucent construction are fixedly mounted in corresponding translucent construction pilot hole.
It, can be by the translucent construction switching with different light transmittances by rotating turntable when needing to carry out precision calibration
Onto the light path between light transmitting module and light receiver module, to realize the precision mark under different dusts concentration
It is fixed；After the completion of precision calibration, by rotating turntable, by light passing region switching to light transmitting module and light receiver module it
Between light path on, so that light path is not reached light receiver module directly by the obstruction of other structures, to carry out powder
The measurement of dust concentration.It can be seen that the structure of the switching part is simple, easy to use.
Detailed description of the invention
Fig. 1 is the sensor of dust concentration structural schematic diagram of the utility model；
Fig. 2 is the side view of Fig. 1 turntable；
In figure, 1 is shell, and 2 be light transmitting module, and 3 be motor, and 4 be turntable, and 5 be light receiver module, and 6 be shaft,
7 be Bearning mechanism, and 8 be the lens that light transmittance is 20%, and 9 be the lens that light transmittance is 50%, 10 be light transmittance be 80% it is saturating
Mirror, 11 be the light path between light transmitting module and light receiver module, and 12 be lens group, and 13 be light passing region.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and specifically
The present invention will be further described in detail for embodiment.
Sensor of dust concentration embodiment:
The sensor of dust concentration of the present embodiment combined with Figure 1 and Figure 2, including shell 1 are provided with light transmitting in shell 1
Module 2, light receiver module 5 and dust concentration detection module, form powder between light transmitting module 2 and light receiver module 5
Dust concentration detection zone.In the present embodiment, light transmitting module 2 is laser, and light receiver module 5 is detector.
Dust concentration detection module includes caliberating device, and caliberating device includes translucent construction part and switching part.Wherein,
Translucent construction part includes three translucent constructions with different light transmittances, respectively lens 8, light transmittance of the light transmittance for 20%
The lens 10 that lens 9 and light transmittance for 50% are 80%.In the present embodiment, translucent construction is with the saturating of certain light transmittance
Mirror simulates dust concentration using the lens with certain light transmittance, three kinds have different light transmittances when carrying out precision calibration
Three kinds of different dust concentrations of lens analog, to realize precision mark of the sensor of dust concentration under three kinds of dust concentrations
It is fixed.As other embodiments, translucent construction can also be optical filter, light transmission block or light transmission column with certain light transmittance
Deng, wherein the light transmittance of translucent construction, which can according to need, to be adjusted.
Switching part includes turntable 4, circumferentially offers on turntable 4 along turntable and connects for transmitted light transmitting module and light
The light passing region 13 of the light path 11 (hereinafter referred to as light path 11) between module is received, light passing region 13 is for directly passing through
Light path 11 enables light path 11 not reached light receiver module 5 directly by the obstruction of other structures；Edge turns on turntable 4
Disk is circumferentially also provided with three translucent construction pilot holes, lens 9 that lens 8 that light transmittance is 20%, light transmittance are 50% and thoroughly
The lens 10 that light rate is 80% are respectively and fixedly installed in corresponding translucent construction pilot hole.When needing to carry out precision calibration,
By rotating turntable 4, switching part can lead on any one lens switching to light path 11 in translucent construction part
The lens that switching has different light transmittances are crossed, can be achieved with precision calibration of the sensor of dust concentration under different dusts concentration；
After completing precision calibration, by rotating turntable 4, switching part can make on 13 switching to light path 11 of light passing region
Light path 11 can not directly be reached light receiver module 5 by the obstruction of other structures, to carry out the measurement of dust concentration.
As other embodiments, switching part can also be using other structure types, such as each lens are along detection
Optical path 11 is sequentially arranged, and when needing to put into some lens, other lenses are cut away from light path 11；When not needing
When putting into lens, all lens are all cut away from light path 11.
A kind of precision calibration as other embodiments, under sensor of dust concentration only needs to realize dust concentration
When, the lens with certain light transmittance can be only arranged in translucent construction part, and correspondingly a light transmission is only arranged in switching part
Standard hole；When sensor of dust concentration needs to realize the precision calibration under a variety of dust concentrations, translucent construction part can
At least two lens with different light transmittances are set, and correspondingly translucent construction identical with lens number need to be arranged in switching part
Pilot hole, wherein the lens number with different light transmittances is more, and the precision calibration of sensor of dust concentration is more accurate.
In the present embodiment, in order to realize the Fast Calibration of sensor of dust concentration precision, switching part further include motor 3 with
And the shaft 6 being arranged to drive turntable 4 to rotate is assembled with turntable 4, wherein the output shaft transmission connection shaft 6 of motor 3.
In the present embodiment, in order to realize the fixation of shaft 6, switching part further includes the Bearning mechanism for fixed rotating shaft 6
7, wherein Bearning mechanism 7 includes bearing and bearing block.
In order to realize the quantitative detection of dust concentration, in the present embodiment, sensor of dust concentration further includes data processing mould
Block, the output end of light receiver module 5 connect data processing module, such as data processing module is CPU.
In the present embodiment, lens are provided in the light path between dust concentration detection zone and light receiver module 5
Group 12.Wherein, lens group 12 is made of two plano-convex lens, and each plano-convex lens are equipped in centre bore and centre bore and are equipped with
Light-blocking nut.When carrying out dust concentration detection, if having dust in light path 11, then the light emitted by light transmitting module 2
Line can generate scattering light after dust, and scattering light is beaten in lens group 12, converge to photosensitive area for light is scattered by lens group 12
Domain is received by the light receiver module 5 in photosensitive region, then, is converted to the optical signal received by light receiver module 5
The electric signal proportional to optical signal, and electric signal is sent to the calculating that data processing module carries out dust concentration, thus real
The quantitative detection of existing dust concentration；If there is no dust in light path 11, then the light emitted by light transmitting module 2 can be beaten
On light-blocking nut, scattering light is not generated at this time, the dust concentration detected is 0.
As other embodiments, lens group 12 can also be using other structure types in the prior art, such as apply
Publication No. is the lens group two in the application for a patent for invention file of CN106769718A, and lens group two is aspherical mirror and its center
Position is placed with light blocking medium.
It describes in detail below to the course of work of sensor of dust concentration:
(1) sensor of dust concentration carries out the process of dust concentration detection.
When carrying out dust concentration detection, first ensure that the light passing region 13 in turntable 4 in light path 11, makes detection light
Road 11 can not directly be reached light receiver module 5 by the obstruction of other structures, at this point, swashing when having dust in light path 11
The laser of light device transmitting can occur scattering and form scattering light, and scattering light is received by a detector after being got up by the convergence of lens group 12, visits
It surveys device and the optical signal received is converted to the electric signal proportional to optical signal, and electric signal is sent to data processing mould
Dust concentration is calculated by data processing module in block, to realize dust concentration detection.
(2) sensor of dust concentration carries out the process of precision calibration.
When needing to carry out precision calibration (such as when reaching the precision calibration time of setting or artificial control carries out essence
Scale timing), it is instructed firstly, electric machine controller is sent to motor 3, control motor 3 drives turntable 4 to rotate certain angle, makes
The one of lens (such as light transmittance is 20% lens 8, hereinafter referred to as lens 8) for obtaining translucent construction part are exactly in inspection
It surveys among optical path 11；Then, laser emits laser, and laser is received by a detector after lens 8, lens group 12, detector
The optical signal received is converted to the electric signal proportional to optical signal, and electric signal is sent to data processing module, by
Data processing module calculates dust concentration；Then, it by the calculated dust concentration of data processing module, is represented with lens 8
Dust concentration (data are stored in data processing module) is compared, and when the two is inconsistent, illustrates that dust concentration senses
Detection accuracy decline of the device under the dust concentration that lens 8 represent, is subject to the data being stored in data processing module at this time,
The calculated data of data processing module are modified, complete sensor of dust concentration under the dust concentration that lens 8 represent
Precision calibration；Then, control motor 3 drives turntable 4 to rotate a new angle, another lens is made to be exactly in detection
Among optical path 11, precision calibration of the sensor of dust concentration under the dust concentration that the lens represent is completed；It is all when completing
After precision calibration under the dust concentration that mirror represents, control motor 3 drives turntable 4 to rotate, and the light passing region 13 in turntable 4 is made to exist
In light path 11, guarantee that light path 11 can not directly be reached light receiver module 5, dust concentration by the obstruction of other structures
Sensor can re-start dust concentration detection.
It can be seen that the sensor of dust concentration, it can real-time perfoming precision calibration, and entire precision calibration mistake as needed
Journey is rapid and simple, and is not necessarily to special precision calibration equipment, reduces input cost, meanwhile, which is nothing
Dirt calibration, it is environmental clean.
Dust concentration detection module embodiment:
The difference of the dust concentration detection module and sensor of dust concentration of the utility model is: the detection module does not wrap
Transmitting module containing light and light receiver module, the specific structure of the detection module are shown in sensor of dust concentration embodiment, herein
It repeats no more.
Claims (10)
1. a kind of sensor of dust concentration, including light transmitting module and light receiver module, light transmitting module and light connect
It receives and forms dust concentration detection zone between module, which is characterized in that the sensor of dust concentration further includes caliberating device, institute
Stating caliberating device includes translucent construction part and switching part, and the translucent construction part, which includes one, has certain light transmittance
Translucent construction or at least two with different light transmittances translucent constructions, the switching part with it is each in translucent construction part
Translucent construction assembly setting, for by any one translucent construction switching in translucent construction part to light transmitting module and light
In light path between line receiving module.
2. sensor of dust concentration according to claim 1, which is characterized in that the translucent construction is lens or optical filtering
Piece.
3. sensor of dust concentration according to claim 1, which is characterized in that the switching part includes turntable, turntable
On circumferentially offered along turntable for through the light path light passing region and light transmission identical with translucent construction number
Standard hole, each translucent construction are fixedly mounted in corresponding translucent construction pilot hole.
4. sensor of dust concentration according to claim 3, which is characterized in that the switching part further include motor and
The shaft being arranged to drive turntable to rotate, the output shaft transmission connection shaft of the motor are assembled with turntable.
5. sensor of dust concentration according to claim 4, which is characterized in that the switching part further includes for fixing
The Bearning mechanism of shaft.
6. sensor of dust concentration according to claim 1, which is characterized in that the dust concentration detection zone with it is described
Lens group is provided in light path between light receiver module.
7. sensor of dust concentration according to claim 1, which is characterized in that the sensor of dust concentration further includes number
According to processing module, the output end of the light receiver module connects the data processing module.
8. a kind of dust concentration detection module, which is characterized in that the dust concentration detection module includes caliberating device, the calibration
Device includes translucent construction part and switching part, and the translucent construction part includes the light transmission knot with certain light transmittance
Structure or at least two translucent constructions with different light transmittances, the switching part and each light transmission knot in translucent construction part
Structure assembly setting, for by any one translucent construction switching in translucent construction part to light transmitting module and light receiver
In light path between module.
9. dust concentration detection module according to claim 8, which is characterized in that the translucent construction is lens or optical filtering
Piece.
10. dust concentration detection module according to claim 8, which is characterized in that the switching part includes turntable, is turned
It is circumferentially offered along turntable on disk for light passing region through the light path and identical with translucent construction number
Photo structure pilot hole, each translucent construction are fixedly mounted in corresponding translucent construction pilot hole.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920070074.0U CN209559713U (en) | 2019-01-16 | 2019-01-16 | A kind of sensor of dust concentration and dust concentration detection module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920070074.0U CN209559713U (en) | 2019-01-16 | 2019-01-16 | A kind of sensor of dust concentration and dust concentration detection module |
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| CN209559713U true CN209559713U (en) | 2019-10-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612894A (en) * | 2019-01-16 | 2019-04-12 | 光力科技股份有限公司 | Sensor of dust concentration and dust concentration detection module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612894A (en) * | 2019-01-16 | 2019-04-12 | 光力科技股份有限公司 | Sensor of dust concentration and dust concentration detection module |
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