CN107063959A - Portable type electronic product and its microparticle thing sensing device - Google Patents
Portable type electronic product and its microparticle thing sensing device Download PDFInfo
- Publication number
- CN107063959A CN107063959A CN201710452815.7A CN201710452815A CN107063959A CN 107063959 A CN107063959 A CN 107063959A CN 201710452815 A CN201710452815 A CN 201710452815A CN 107063959 A CN107063959 A CN 107063959A
- Authority
- CN
- China
- Prior art keywords
- sensing device
- gas channel
- microparticle thing
- wind wheel
- thing sensing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011859 microparticle Substances 0.000 title claims abstract description 54
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 239000002245 particle Substances 0.000 claims abstract description 10
- 230000001419 dependent effect Effects 0.000 claims 1
- 230000006698 induction Effects 0.000 claims 1
- 238000007689 inspection Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000012491 analyte Substances 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 210000000621 bronchi Anatomy 0.000 description 1
- 206010006451 bronchitis Diseases 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/075—Investigating concentration of particle suspensions by optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N2015/0042—Investigating dispersion of solids
- G01N2015/0046—Investigating dispersion of solids in gas, e.g. smoke
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
The invention discloses a kind of portable type electronic product and its microparticle thing sensing device, microparticle thing sensing device includes body part (1) and is arranged in the gas channel of the body part (1), for the detection unit of detection of particles content, in addition to the Miniature brushless motor (8) that the miniature wind wheel (2) being arranged in the gas channel and the driving miniature wind wheel (2) rotate.The microparticle thing sensing device that the present invention is provided, by setting miniature wind wheel and Miniature brushless motor, relative to fan of the prior art and motor, effectively reduces its volume, is easy to be integrated in the product carried with；Also, it is low in energy consumption and reduce production cost.
Description
Technical field
The present invention relates to microparticle analyte detection equipment technical field, more particularly to a kind of portable type electronic product and its micro-
Grain thing sensing device.
Background technology
Atmospheric environment has the pellet in vital influence, air to be always air on the health of people
The emphasis of environmental monitoring.PM2.5 sensing device extensive uses in microparticle thing sensing device.Wherein, PM2.5 refers in air
Diameter is less than or equal to 2.5 microns of particulate matter, also referred to as lung particulate matter, very easy to carry a large amount of because its particle diameter is small
The harmful substance such as virus, bacterium, and be not easy precipitation, the residence time is long in atmosphere, and fed distance is remote, is inhaled into after human body
Bronchus can be directly entered, the gas exchanges of lung are disturbed, initiation includes the disease in terms of asthma, bronchitis and cardiovascular disease
Disease.
Illustrated by taking PM2.5 sensing devices as an example：
At present, due to needing air to enter sensor, and sensor is allowed to obtain enough pollution particles in the unit interval,
Obtaining in enough semaphores, PM2.5 sensing devices has active air-supply arrangement (fan or other cross-ventilated dresses of generation
Put).Such as Sharp GP2Y1051AU0F, akala PMS5003 etc..
But, due to needing to set the active air-supply arrangements such as fan, and active air-supply arrangement needs have corresponding drive
Dynamic device (such as motor) so that the power consumption of PM2.5 sensing devices is larger, and production cost is higher.Existing active air-supply arrangement
Complicated, volume is big, is not easy to be integrated into portable type electronic product.
Therefore, how to reduce volume, reduction power consumption and production cost, be easy to it is integrally disposed, be those skilled in the art urgently
To be solved the problem of.
The content of the invention
In view of this, the invention provides a kind of microparticle thing sensing device, to reduce volume, reduce power consumption and be produced into
This, is easy to integrally disposed.The invention also discloses a kind of portable type electronic product with above-mentioned microparticle thing sensing device.
To achieve the above object, the present invention provides following technical scheme：
A kind of microparticle thing sensing device, including body part and be arranged in the gas channel of the body part, use
In the detection unit of detection of particles content, in addition to the miniature wind wheel and the driving miniature wind being arranged in the gas channel
Take turns the Miniature brushless motor rotated.
Preferably, in above-mentioned microparticle thing sensing device, the cross-sectional area of the air inlet of the gas channel is more than described
The cross-sectional area of the gas outlet of gas channel.
Preferably, in above-mentioned microparticle thing sensing device, the gas channel is " C " shape passage, the gas channel
Air inlet and its gas outlet are located at the two ends of described " C " shape passage respectively；
The detection zone of the wind wheel and the detection unit is located at the interlude of described " C " shape passage.
Preferably, in above-mentioned microparticle thing sensing device, " C " shape passage by the interlude and with its two ends vertical connection
End run section composition；The width of the interlude is more than the width of end run section.
Preferably, in above-mentioned microparticle thing sensing device, the miniature wind wheel is located at the detection unit and the air-flow
In gas channel section between the air inlet of passage.
Preferably, in above-mentioned microparticle thing sensing device, the axis of the miniature wind wheel leads to the air-flow where it
The interlude in road is vertical.
Preferably, having in above-mentioned microparticle thing sensing device, on the body part is used to avoid the miniature wind wheel
And the holding tank of the Miniature brushless motor.
Preferably, in above-mentioned microparticle thing sensing device, the detection unit includes light sensor and corresponding
Generating laser；The orientation of the light sensor and the generating laser is perpendicular to the gas channel.
Preferably, have in above-mentioned microparticle thing sensing device, on the body part for generating laser insertion
Embedded groove, the embedded groove has the opening that is connected with the gas channel.
Present invention also offers a kind of portable type electronic product, including the microparticle thing sensing dress described in any one as described above
Put.
It can be seen from above-mentioned technical scheme that, the microparticle thing sensing device that the present invention is provided, in the gas of body part
Miniature wind wheel and detection unit are set in circulation road, drive miniature wind wheel to rotate by Miniature brushless motor so that outside air
Gas channel is flowed through with streamer mode, gas flow is drawn according to the rotating speed (rotating speed of miniature wind wheel) of Miniature brushless motor, and
Microparticle thing is detected using detection unit, and then obtains the fraction of particle of unit volume.The microparticle that the present invention is provided
Thing sensing device, by setting miniature wind wheel and Miniature brushless motor, relative to fan of the prior art and motor, effectively contracting
Its small volume, is easy to be integrated in the product carried with；Also, it is low in energy consumption and reduce production cost.
Present invention also offers a kind of portable type electronic product, including any microparticle thing sensing device as described above.By
There is above-mentioned technique effect in above-mentioned microparticle thing sensing device, the portable electronic production with above-mentioned microparticle thing sensing device
Product should also have same technique effect, and no longer meaning is tired herein states.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of microparticle thing sensing device provided in an embodiment of the present invention.
Embodiment
The invention discloses a kind of microparticle thing sensing device, to reduce volume, reduction power consumption and production cost, raising makes
With the life-span and it is easy to integrally disposed.The invention also discloses a kind of portable electronic production with above-mentioned microparticle thing sensing device
Product.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is refer to, Fig. 1 is the structural representation of microparticle thing sensing device provided in an embodiment of the present invention.
The embodiments of the invention provide a kind of microparticle thing sensing device, including body part 1 and it is arranged at body part 1
Gas channel in detection unit, detection unit be used for detection of particles content.Wherein, in addition to it is arranged in gas channel
The Miniature brushless motor 8 that miniature wind wheel 2 and the miniature wind wheel 2 of driving are rotated.
Microparticle thing sensing device provided in an embodiment of the present invention, sets miniature wind in the gas channel of body part 1
Wheel 2 and detection unit, drive miniature wind wheel 2 to rotate so that outside air flows through gas with streamer mode by Miniature brushless motor 8
Circulation road, draws gas flow, and use detection unit pair according to the rotating speed (rotating speed of miniature wind wheel 2) of Miniature brushless motor 8
Microparticle thing is detected, and then obtains the fraction of particle of unit volume.Microparticle thing sensing dress provided in an embodiment of the present invention
Put, by setting miniature wind wheel 2 and Miniature brushless motor 8, relative to fan of the prior art and motor, effectively reduce it
Volume, is easy to be integrated in the product carried with；Also, it is low in energy consumption and reduce production cost.
It is understood that in microparticle thing sensing device provided in an embodiment of the present invention, according to Miniature brushless motor 8
Rotating speed control can reach control gas flow rate effect.It therefore, it can draw gas according to the rotating speed of Miniature brushless motor 8
Flow velocity.
Preferably, the cross-sectional area of the air inlet 6 of gas channel is more than the cross-sectional area of the gas outlet 7 of gas channel.It is logical
Above-mentioned setting is crossed, outside air has been further facilitated and has entered gas channel.
As shown in figure 1, gas channel is " C " shape passage, the air inlet 6 of gas channel and its gas outlet 7 are located at " C " respectively
The two ends of shape passage；The detection zone of wind wheel 2 and detection unit is located at the interlude 5 of " C " shape passage.By the way that gas channel is set
" C " shape passage is set to, and by the air inlet 6 of gas channel and its gas outlet 7 respectively positioned at the two ends of " C " shape passage so that
The gas flow rate of interlude 5 of " C " shape passage is stable, is influenceed smaller by external air flow, and then improves the detection essence of detection unit
Degree.
It is understood that " C " shape passage is made up of three orthogonal channel sections, interlude 5 is positioned at middle
One channel section, two ends are respectively connected with the end run section of perpendicular connection.Wherein, the width of interlude 5 is logical more than end
The width of road section, in order to improve accuracy of detection.
Gas channel only can also be set to " L " shape passage or curved channel etc., no longer tire out one by one herein and state and exist
Within protection domain.
For the ease of arrangement, the air intake air supply mode feature of microparticle thing sensing device provided in an embodiment of the present invention is：
Miniature wind wheel 2 is located at detection unit towards the side of the air inlet 6 of gas channel.That is, miniature wind wheel 2 is located at detection unit and gas
In gas channel section between the air inlet 6 of circulation road.Air-flow first passes through miniature wind wheel 2 and carries out flow detection, then by detection
Unit carries out detection of particulates, further improves effect of the miniature wind wheel 2 to air-flow, improves accuracy of detection.
By above-mentioned gas channel layout and air supply mode, be conducive to the miniaturization of microparticle thing sensing device, be easy to Vcsel
(Vertical Cavity Surface Emitting Laser, vertical cavity surface emitting laser) microlaser is used, made
The miniature PM2.5 sensors of chip-scale that thickness is less than three millimeters can be minimized by obtaining microparticle thing sensing device.
It is of course also possible to make miniature wind wheel 2 be located at side of the detection unit towards the gas outlet 7 of gas channel；Or, it is micro-
Type wind wheel 2 is located at detection unit on the same cross section of gas channel, i.e. air-flow is simultaneously single with detection by miniature wind wheel 2
Member.
As shown in figure 1, in the present embodiment, the interlude 5 of the axis of miniature wind wheel 2 and the gas channel where it hangs down
Directly.By above-mentioned setting, the effect that miniature wind wheel 2 drives air current flow is further increased.The axle of miniature wind wheel 2 can also be made
Angle between line and interlude 5 is acute angle.
Preferably, there is the holding tank for being used for avoiding miniature wind wheel 2 and Miniature brushless motor 8 on body part 1.By upper
State setting so that the part-structure of miniature wind wheel 2 and Miniature brushless motor 8 can be embedded in holding tank, effectively reduce micro-
The thickness of grain thing sensing device.
In the present embodiment, detection unit includes light sensor 4 and corresponding generating laser 3；Light sensor 4
Orientation with generating laser 3 is perpendicular to gas channel.Its principle is that the air-flow that particulate is formed with air is logical along air-flow
Road flows, the diffusing reflection that can be produced into laser-irradiated domain (region between light sensor 4 and generating laser 3), leads to
This diffusing reflection pulse can be captured by crossing light sensor 4 (such as photodiode).By to the unrestrained anti-of certain air velocity
Penetrate the pulse frequency of occurrences to be counted, the particle concentration of unit volume can be calculated.It is of course also possible to use other modes
Detection of particles content.
Preferably, microparticle thing sensing device provided in an embodiment of the present invention, is less than 1.5mm using diameter, and length is less than
5mm generating laser 3, greatly reduces the size of generating laser 3, and then reduces the body of microparticle thing sensing device
Product.
By above-mentioned setting, the volume of microparticle thing sensing device can be controlled within 12mm*12mm*6mm, so that just
In being fabricated to chip-scale SMT surface mount elements, directly microparticle thing sensing device is connected by the mode such as welding or snapping connection
On the circuit board of portable electric appts.Such as, the electronic equipments such as motion bracelet or mobile phone are connected directly between, allow user right
Personal local environment air quality carries out detection and in real time monitoring.
In order to ensure the area of laser-irradiated domain, improving on accuracy of detection, body part 1 has for generating laser 3
Embedded embedded groove, embedded groove has the opening connected with gas channel.Pass through above-mentioned setting so that light sensor 4 is with swashing
Region between optical transmitting set 3 is larger, and then facilitates the detection to particulate.
Wherein, the laser-irradiated domain between light sensor 4 and generating laser 3 is located at the interlude 5 of gas channel.
The embodiment of the present invention additionally provides a kind of portable type electronic product, including any microparticle thing sensing dress as described above
Put.Because above-mentioned microparticle thing sensing device has above-mentioned technique effect, with the portable of above-mentioned microparticle thing sensing device
Electronic product should also have same technique effect, and no longer meaning is tired herein states.
Above-mentioned portable type electronic product can be mobile phone or bracelet etc..
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of microparticle thing sensing device, including body part (1) and the gas channel for being arranged at the body part (1)
It is interior, the detection unit for detection of particles content, it is characterised in that the also miniature wind wheel including being arranged in the gas channel
And the Miniature brushless motor (8) that rotates of the driving miniature wind wheel (2) (2).
2. microparticle thing sensing device as claimed in claim 1, it is characterised in that the air inlet (6) of the gas channel
Cross-sectional area is more than the cross-sectional area of the gas outlet (7) of the gas channel.
3. microparticle thing sensing device as claimed in claim 1, it is characterised in that the gas channel is " C " shape passage, institute
The air inlet (6) and its gas outlet (7) of stating gas channel are located at the two ends of described " C " shape passage respectively；
The detection zone of the wind wheel (2) and the detection unit is located at the interlude (5) of described " C " shape passage.
4. microparticle thing sensing device as claimed in claim 3, it is characterised in that " C " shape passage by the interlude (5) and
Constituted with the end run section of its two ends vertical connection；The width of the interlude (5) is more than the width of end run section.
5. microparticle thing sensing device as claimed in claim 1, it is characterised in that the miniature wind wheel (2) is located at the inspection
Survey in the gas channel section between unit and the air inlet (6) of the gas channel.
6. microparticle thing sensing device as claimed in claim 1, it is characterised in that the axis of the miniature wind wheel (2) and its
The interlude (5) of the gas channel at place is vertical.
7. microparticle thing sensing device as claimed in claim 1, it is characterised in that having on the body part (1) is used for
Avoid the holding tank of the miniature wind wheel (2) and the Miniature brushless motor (8).
8. the microparticle thing sensing device as described in claim any one of 1-7, it is characterised in that the detection unit includes light
Dependent sensor (4) and corresponding generating laser (3)；The light sensor (4) and the row of the generating laser (3)
Column direction is perpendicular to the gas channel.
9. microparticle thing sensing device as claimed in claim 8, it is characterised in that have on the body part (1) and supply institute
The embedded embedded groove of generating laser (3) is stated, the embedded groove has the opening connected with the gas channel.
10. a kind of portable type electronic product, it is characterised in that passed including the microparticle thing as described in claim any one of 1-9
Induction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710452815.7A CN107063959A (en) | 2017-06-15 | 2017-06-15 | Portable type electronic product and its microparticle thing sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710452815.7A CN107063959A (en) | 2017-06-15 | 2017-06-15 | Portable type electronic product and its microparticle thing sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107063959A true CN107063959A (en) | 2017-08-18 |
Family
ID=59595561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710452815.7A Pending CN107063959A (en) | 2017-06-15 | 2017-06-15 | Portable type electronic product and its microparticle thing sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107063959A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307680A (en) * | 2020-03-10 | 2020-06-19 | 深圳市宇驰环境技术有限公司 | Wearable device |
| CN112577863A (en) * | 2019-09-27 | 2021-03-30 | 研能科技股份有限公司 | Gas detection module |
| CN112630114A (en) * | 2020-12-31 | 2021-04-09 | 金民 | Dust concentration detection equipment for environmental air detection and detection method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266947A (en) * | 2014-09-15 | 2015-01-07 | 中国科学院上海光学精密机械研究所 | Aerosol particle concentration sensor and detection method thereof |
| CN204302153U (en) * | 2014-10-20 | 2015-04-29 | 崔海林 | Particulate matter sensors |
| CN104749075A (en) * | 2014-10-16 | 2015-07-01 | 北京汉王蓝天科技有限公司 | Air particle detecting device and method |
| CN105021501A (en) * | 2014-04-25 | 2015-11-04 | 周志斌 | Sensor and detection method for mass concentration of suspended particulate matters in air |
| CN105572008A (en) * | 2016-03-03 | 2016-05-11 | 张银虎 | Laser dust sensor |
| CN206235536U (en) * | 2016-11-22 | 2017-06-09 | 武汉四方光电科技有限公司 | Suspended particulate substance detection means in a kind of air |
| CN207318290U (en) * | 2017-06-15 | 2018-05-04 | 中国科学技术大学 | Portable electronic product and its microparticle thing sensing device |
-
2017
- 2017-06-15 CN CN201710452815.7A patent/CN107063959A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021501A (en) * | 2014-04-25 | 2015-11-04 | 周志斌 | Sensor and detection method for mass concentration of suspended particulate matters in air |
| CN104266947A (en) * | 2014-09-15 | 2015-01-07 | 中国科学院上海光学精密机械研究所 | Aerosol particle concentration sensor and detection method thereof |
| CN104749075A (en) * | 2014-10-16 | 2015-07-01 | 北京汉王蓝天科技有限公司 | Air particle detecting device and method |
| CN204302153U (en) * | 2014-10-20 | 2015-04-29 | 崔海林 | Particulate matter sensors |
| CN105572008A (en) * | 2016-03-03 | 2016-05-11 | 张银虎 | Laser dust sensor |
| CN206235536U (en) * | 2016-11-22 | 2017-06-09 | 武汉四方光电科技有限公司 | Suspended particulate substance detection means in a kind of air |
| CN207318290U (en) * | 2017-06-15 | 2018-05-04 | 中国科学技术大学 | Portable electronic product and its microparticle thing sensing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577863A (en) * | 2019-09-27 | 2021-03-30 | 研能科技股份有限公司 | Gas detection module |
| CN111307680A (en) * | 2020-03-10 | 2020-06-19 | 深圳市宇驰环境技术有限公司 | Wearable device |
| CN111307680B (en) * | 2020-03-10 | 2022-10-21 | 深圳市宇驰环境技术有限公司 | Wearable device |
| CN112630114A (en) * | 2020-12-31 | 2021-04-09 | 金民 | Dust concentration detection equipment for environmental air detection and detection method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107063959A (en) | Portable type electronic product and its microparticle thing sensing device | |
| CN105680717B (en) | A kind of vane type composite wind pwoer energy harvester | |
| US20150136997A1 (en) | Air blowing device and air blowing method | |
| CN207318290U (en) | Portable electronic product and its microparticle thing sensing device | |
| CN206369141U (en) | A kind of Novel anti-mist haze LED street lamp | |
| CN205749212U (en) | A kind of portable high-accuracy PM2.5 detector | |
| CN107421858A (en) | Portable type electronic product and its microparticle thing sensing device | |
| CN206945489U (en) | Portable type electronic product and its microparticle thing sensing device | |
| CN201331480Y (en) | Mining dust concentration sensor | |
| CN104437859B (en) | Rotating disc type runoff battery lead plate deduster | |
| CN207655349U (en) | Device for atomizing liquid | |
| CN205606765U (en) | Anion air purification and detection device | |
| CN108856153B (en) | The positive and negative wind pressure automatic cleaning method of optical device | |
| CN208750844U (en) | Air conditioner | |
| WO2023130525A1 (en) | Hydrated plasma generator, air disinfection device, and air disinfection control system and control method | |
| CN103883567A (en) | Intelligent blade-less air caring system | |
| CN206786915U (en) | Fresh-air fan electrostatic precipitation system | |
| CN206430275U (en) | Air purification equipment | |
| CN103673135A (en) | Portable air purifier | |
| CN213446219U (en) | Ozone generator in nitrogen oxide on-line measuring equipment | |
| CN203929458U (en) | Wind gathering cover and there is the PM2.5 tester of this wind gathering cover | |
| CN209590820U (en) | A kind of dust-protection type capacitive touch screen | |
| CN204219986U (en) | A kind of particle aggregation treating apparatus | |
| CN202111367U (en) | Ion converter | |
| CN207231964U (en) | A kind of monitoring device of powder-like waste being used in air |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |