CN206563696U - A kind of Multifunctional particulate matter detector - Google Patents
A kind of Multifunctional particulate matter detector Download PDFInfo
- Publication number
- CN206563696U CN206563696U CN201621191634.0U CN201621191634U CN206563696U CN 206563696 U CN206563696 U CN 206563696U CN 201621191634 U CN201621191634 U CN 201621191634U CN 206563696 U CN206563696 U CN 206563696U
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- sensor
- particulate matter
- filter membrane
- filter
- sealing ring
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Abstract
The utility model essentially discloses a kind of Multifunctional particulate matter detector, its technical scheme：Including plastic casing, screen display device, cell apparatus, three-in-one sensor device, five in one sensor device and main circuit board, including cutter, survey haze device, filter for installation, sound-muffling box and air pump；The cutter is rotatably connected on the survey haze device；Described filter for installation one end is connected with surveying haze device, the filter for installation other end is connected with air pump, the survey haze device includes infrared laser component, surveys haze chamber, particulate matter receiving unit and laser absorption component, the infrared laser component is connected with the survey haze chamber, and the particulate matter receiving unit is connected with the survey haze chamber；The plastic casing includes lower cover and upper casing, and the lower cover is fixedly connected with the upper casing, and the mass figures of the utility model energy quick detection air, fast response time is conducive to grasping air quality in time.
Description
Technical field
The utility model is related to the quick determination techniques field of particulate matter, more particularly to a kind of Multifunctional particulate matter detector.
Background technology
Particulate matter of the particle diameter below 10 microns is generally called PM10, also known as pellet or floating dust.Particle
The diameter of thing is smaller, and the position into respiratory tract is deeper.The particulate matter of 10 micron diameters is usually deposited at the upper respiratory tract, 5 microns
The deep into respiratory tract of diameter, less than 2 microns 100% can be deep into bronchiole and alveolar.
Particle size is small, rich in a large amount of poisonous and harmful substances, and residence time length, fed distance in an atmosphere is remote,
Influence thus to health and atmosphere quality is very big.Nasal cavity, the throat of human body can not stop compared with small particle
Grain thing, can enter tracheae, and bronchus rests on lung, causes PUD D, and malignant bacteria and virus can be mounted in particulate matter and enter
Enter human respiratory tract depths, cause infection, induce the diseases such as angiocarpy.Therefore how quick detection air quality numerical value is current
The theme of research.
When the concentration of Atmospheric particulates is detected with Atmospheric particulates detector, it is necessary to sampled, the particle after cutting
Thing is collected by Atmospheric particulates detector endoparticle thing collector, and when atmospheric temperature is relatively low, the moisture content in air is also larger,
Moisture content is collected into together with particulate matter on the particle collection device in monitoring device, and the precision of current detector detection is not high.
Utility model content
The utility model purpose is above-mentioned technical problem present in solution prior art, and there is provided a kind of multifunctional particle
Analyte detection instrument, the mass figures of energy quick detection air, fast response time is conducive to grasping air quality in time.
In order to solve the above-mentioned technical problem, the utility model is adopted the following technical scheme that：A kind of multifunctional particle analyte detection
Instrument, including plastic casing, screen display device, cell apparatus, three-in-one sensor device, five in one sensor device and main line
Road plate, including cutter, survey haze device, filter for installation, sound-muffling box and air pump；The cutter is rotatably connected in the survey haze
On device；Described filter for installation one end is connected with surveying haze device, and the filter for installation other end is connected with air pump, described to survey
Haze device includes infrared laser component, surveys haze chamber, particulate matter receiving unit and laser absorption component, the infrared laser component with
The survey haze chamber connection, the particulate matter receiving unit is connected with the survey haze chamber；The plastic casing includes lower cover and upper casing,
The lower cover is fixedly connected with the upper casing.
The utility model is further arranged to：The filter for installation include two the first sealing rings, filter membrane box, filter membrane,
Filter membrane lid, filter membrane cover plate, second spring and screw, two the first sealing rings are respectively arranged in survey haze device and filter membrane cover plate,
The filter membrane box, filter membrane and filter membrane lid are connected to filter membrane cover plate top in turn, the filter membrane be installed on filter membrane box and filter membrane lid it
Between, the screw is inserted in second spring and is connected with filter membrane cover plate bottom.The utility model is cased with second spring outside screw,
Realize that filter for installation is locked on survey haze chamber, filter for installation is withstood by second spring, because when filter for installation crosses one section
Between just need to change, directly open filter membrane cover plate with regard to filter for installation can be changed from the hole surveyed on haze chamber with professional thimble top.
The utility model is further arranged to：The three-in-one sensor device includes three-in-one sensor body and three and closed
One sensor stand, three-in-one sensor body described in the three-in-one sensor support cross-brace.
The utility model is further arranged to：The five in one sensor device includes five in one sensor body and pentahapto
One sensor stand, five in one sensor body described in the five in one sensor stand cross-brace.
The utility model is further arranged to：The cutter uses plastic inlet cover PM2.5 cutters.
The utility model is further arranged to：The infrared laser component includes first line plate, laser fixation kit, red
Outer laser tube, radiating aluminum pipe, the first spring, the first lens, lens fixed seat, the 4th sealing ring and sealing ring fixture, it is described
Infrared laser tube head is connected through laser fixation kit with first line plate, the infrared laser pipe afterbody and radiating aluminum pipe one
End connection, first spring, lens fixed seat and sealing ring fixture are installed in inside the radiating aluminum pipe other end, described
First lens are connected with lens fixed seat, and the 4th sealing ring is connected with sealing ring fixture.Infrared laser pipe passes through laser
It is welded in after fixation kit on first line plate, the screw thread of the screw thread on laser fixation kit and radiating aluminum pipe is spun on together, first
Spring is put into radiating aluminum pipe from opposite side, and the first lens are put into lens fixed seat, and gluing is fixed, and then pass through spiral shell
Line is screwed into radiating aluminum pipe, and the 4th sealing ring is enclosed on sealing ring fixture, is placed on radiating aluminum pipe, is then inserted together
To surveying in the hole of haze chamber, it is inserted into behind position, radiation aluminium tube top is lived with hexagon socket head cap screw without a head sideways.
The utility model is further arranged to：The particulate matter receiving unit includes the second wiring board, receives sensor, two
The lens of piece second, two panels lens fastener and the second sealing ring, second wiring board, receive sensor, the lens of two panels second and
Second sealing ring is connected with each other successively, and second wiring board is with receiving sensor welding.By infrared laser tube entrance
Survey haze intracavitary irradiation and come out and amplified again by the second lens of particulate matter receiving unit, then receive meter by receiving sensor
Calculate, computational methods are the projected areas irradiated by laser, be weighed as auxiliary.
The utility model is further arranged to：The laser absorption component includes heat absorbing glass, sponge support, the 3rd sealing
Circle and glass cover-plate.Glass is put into survey haze intracavitary, places into sponge support and heat absorbing glass is propped up, in order to avoid rocking, place into
3rd sealing ring, finally covers glass cover-plate and is screwed.
The utility model is further arranged to：The main circuit board includes main circuit board body, pressure sensor, pressure difference and passed
Sensor and Temperature Humidity Sensor, the pressure sensor, differential pressure pickup and Temperature Humidity Sensor are installed in main circuit board sheet
On body, the pressure sensor and differential pressure pickup are mutually corresponded to.Main circuit board is exactly to allow whole detector energization normal work,
The flow velocity of air-flow is controlled by pressure sensor, and differential pressure pickup, it is uniformly entered detector.
The utility model is by adopting the above-described technical solution, have the advantages that：
The utility model produces air-flow by air pump operation, and the particulate matter in air is sent into plastic inlet cover, passes through two
The cutting in individual stage, the granular absorption more than PM2.5 in cutting sheet, below PM2.5 enters survey haze device containing PM2.5
It is interior.Then infrared laser component irradiates particulate matter, and particulate matter receiving unit amplification particulate matter simultaneously receives calculating, specifically by
Infrared laser pipe irradiates the particulate matter entered in survey haze device to come, then is put by the second lens of particulate matter receiving unit
Greatly, calculating then is received by receiving sensor, computational methods are the projected areas irradiated by laser, is weighed as auxiliary.So
It can be adsorbed after particle analyte detection is complete afterwards on the filter, the filter membrane in filter is removable to unload the weight for claiming particulate matter down.In addition
Can also play does not allow particulate matter to enter in air pump, protects air pump, three-in-one sensor device device and five in one sensor
Device device is connected on main circuit board by socket, detects the parameter of various gases, finally detects data display to display screen.
The utility model is to the quick measure of air, fast response time；It is convenient for carrying, simple to operate to understand, one hand just can be controlled easily, with
When carry out detection work everywhere, according to different degrees of environmental pollution, the residence row suggestion to oneself reasonably healthy；And charge more
Convenient, longevity of service is applied widely with good environmental suitability.It is another after the irradiation of the utility model infrared laser
End heat absorbing glass falls light absorbs, in case light is fired back, if light, which is reflected, will influence the detection of particulate matter.
Brief description of the drawings
Explanation is further arranged to as the utility model to the utility model below in conjunction with the accompanying drawings：
Fig. 1 is a kind of explosive view of Multifunctional particulate matter detector of the utility model；
Fig. 2 is a kind of structural representation of Multifunctional particulate matter detector of the utility model；
Fig. 3 is the structural representation of survey haze device in the utility model；
Fig. 4 is the structural representation of filter for installation in the utility model；
Fig. 5 is the structural representation of three-in-one sensor device in the utility model；
Fig. 6 is the structural representation of main circuit board in the utility model；
Fig. 7 is laser absorption component in the utility model with surveying the structural representation that haze chamber is connected；
Fig. 8 is the explosive view of the utility model mid-infrared laser component；
Fig. 9 is the explosive view of particulate matter receiving unit in the utility model；
Figure 10 is the structural representation of particulate matter receiving unit in the utility model；
Figure 11 is filter for installation in the utility model with surveying the structural representation that haze device is connected.
In figure, 1, cutter；2nd, haze device is surveyed；3rd, filter for installation；4th, three-in-one sensor body；5th, three-in-one sensing
Device support；6th, five in one sensor body；7th, main circuit board；10th, upper casing；14th, airscoop shroud；15th, stainless steel substrates；16th, nozzle；
17th, the first filtering film magazine；18th, the second filtering film magazine；19th, large sealing circle；20th, glass cover-plate；21st, the first sealing ring；22nd, survey
Haze chamber；23rd, filter membrane box；24th, filter membrane；25th, filter membrane lid；26th, particulate matter receiving unit；27th, infrared laser component；28th, screw；
281st, second spring；29th, filter membrane cover plate；30th, sound-muffling box；31st, air pump；32nd, five in one sensor stand；33rd, heat absorbing glass；
34th, sponge support；35th, lower cover；36th, cell apparatus；37th, screen display device；48th, laser absorption component；49th, first line
Plate；50th, laser fixation kit；51st, infrared laser pipe；52nd, radiate aluminum pipe；53rd, the first spring；54th, the first lens；55th, lens
Fixed seat；56th, the 4th sealing ring；57th, sealing ring fixture；58th, the second wiring board；59th, sensor is received；60th, the second lens；
601st, lens fastener；61st, the second sealing ring；71st, main circuit board body；72nd, pressure sensor；73rd, differential pressure pickup；74th, it is wet
Spend sensor.
Embodiment
As shown in Figure 1 to 11, it is a kind of Multifunctional particulate matter detector of the utility model, including cutter 1, survey haze dress
2, filter for installation 3, screen display device 37, main circuit board 7, sound-muffling box 30, three-in-one sensor device 5, five in one is put to pass
Sensor arrangement 6, cell apparatus 36, air pump 31 and plastic casing.
Cutter 1 is rotatably connected in surveying on haze device 2, and cutter 1 was used for the particulate matter in air using two stages
Cutting.Cutter 1 uses plastic inlet cover PM2.5 cutters.Plastic inlet cover PM2.5 cutters include component：Plastics enter
Gas hood 14, stainless steel substrates 15, the filtering film magazine 17 of nozzle 16, first (the PM4.0 first stage cuts), the second filtering film magazine 18
(cutting of PM2.5 second stage) and large sealing circle 19.
The one end of filter for installation 3 is connected with surveying haze device 2, and the other end of filter for installation 3 is connected with air pump 31.Survey haze device
2 include infrared laser component 27, survey haze chamber 22, particulate matter receiving unit 26 and laser absorption component 48, infrared laser component 27
It is connected with surveying haze chamber 22, particulate matter receiving unit 26 is connected with surveying haze chamber 22.Filter for installation 3 includes two the first sealing rings
21st, filter membrane box 23, filter membrane 24, filter membrane lid 25, filter membrane cover plate 29, second spring 281 and screw 28, two 21 points of the first sealing rings
It is not installed in survey haze device 2 and filter membrane cover plate 29, filter membrane box 23, filter membrane 24 and filter membrane lid 25 are connected to filter membrane cover plate 29 in turn
Top, filter membrane 24 is installed between filter membrane box 23 and filter membrane lid 25, and screw 28 is inserted in second spring 281 and the bottom of filter membrane cover plate 29
Connection.Without tearing main circuit board 7 open when changing filter for installation 3, without tearing filter membrane cover plate 29 open, it is only necessary to surveyed from fixed on haze chamber 22
Two holes insertion contact pin turn down, the bottom screw 28 of filter membrane cover plate 29 is flexible due to having covered second spring 281, can backward
Pine, so that it may take out filter for installation 3, be very convenient to.
Infrared laser component 27 includes first line plate 49, laser fixation kit 50, infrared laser pipe 51, radiating aluminum pipe
52nd, the first spring 53, the first lens 54, lens fixed seat 55, the 4th sealing ring 56 and sealing ring fixture 57, infrared laser pipe
51 heads are connected through laser fixation kit 50 with first line plate 49, and the afterbody of infrared laser pipe 51 connects with radiating aluminum pipe 52 one end
Connect, the first spring 53, lens fixed seat 55 and sealing ring fixture 57 are installed in inside the radiating other end of aluminum pipe 52, first
Lens 54 are connected with lens fixed seat 55, and the 4th sealing ring 56 is connected with sealing ring fixture 57.Infrared laser pipe 51 is used to shine
Project particulate matter.Infrared laser pipe 51 is welded on first line plate after passing through laser fixation kit 50, on laser fixation kit 50
Screw thread and radiating aluminum pipe 52 screw thread be spun on together, the first spring 53 from opposite side be put into radiating aluminum pipe 52 in, first is saturating
Mirror 54 is put into lens fixed seat 55, and gluing is fixed, then by being threaded into radiating aluminum pipe, the 4th sealing ring 56
It is enclosed on sealing ring fixture 57, is placed on radiating aluminum pipe 52, is then inserted into and is surveyed in the hole of haze chamber together, is inserted into behind position,
Radiation aluminium tube top is lived with hexagon socket head cap screw without a head in side.
Particulate matter receiving unit 26 includes the second wiring board 58, receives sensor 59, the second lens of two panels 60, two panels lens
The sealing ring 61 of fastener 601 and second, the second wiring board 58, reception sensor 59, two panels the second lens 60 and the second sealing ring 61
It is connected with each other successively, the second wiring board 58 is welded with receiving sensor 59.Second lens 60 are used to amplify particulate matter, receive sensing
Device 59, which is used to receive, to be calculated.
Laser absorption component 48 includes heat absorbing glass 33, sponge support 34, the 3rd sealing ring 38 and glass cover-plate 20, absorbs
Glass 33 is used to absorb infrared laser.Glass is put into survey haze intracavitary, places into sponge support 34 and heat absorbing glass 33 is propped up, with
Exempt to rock, place into the 3rd sealing ring 38, finally cover glass cover-plate 20 and fixed with normal screws.
Three-in-one sensor device includes three-in-one sensor body 4 and three-in-one sensor support 5, three-in-one sensor
The cross-brace three-in-one sensor body 4 of support 5.Three-in-one sensor can measure nitrogen dioxide and sulfur dioxide, with property
Can high, the highly reliable advantage of stable, precision.Five in one sensor device includes five in one sensor body 6 and five in one is passed
Sensor bracket 32, the cross-brace five in one sensor body 6 of five in one sensor stand 32, can detect that formaldehyde, volatility are organic
Thing, carbon dioxide, with sturdy and durable, the features such as performance is stable.
Plastic casing includes lower cover 35 and upper casing 10, and lower cover 35 is fixedly connected with upper casing 10.
Main circuit board 7 includes main circuit board body 71, pressure sensor 72, differential pressure pickup 73 and Temperature Humidity Sensor
74, pressure sensor 72, differential pressure pickup 73 and Temperature Humidity Sensor 74 are installed on main circuit board body 71, pressure sensing
Device 72 and differential pressure pickup 73 mutually correspondence.Main circuit board 7 is exactly to allow whole detector energization normal work, passes through pressure sensing
Device 72 and differential pressure pickup 73 control the flow velocity of air-flow, it is uniformly entered in detector.
The utility model produces air-flow by the operation of air pump 31, and the particulate matter in air is sent into plastic inlet cover PM2.5
Cutter, by the cutting in two stages, the granular absorption more than PM2.5 in cutting sheet, below PM2.5 enters containing PM2.5
Enter into survey haze device.Then infrared laser component 27 irradiates particulate matter, and the amplification particulate matter of particulate matter receiving unit 26 simultaneously connects
Receive and calculate, the particulate matter entered in survey haze device is irradiated specifically by infrared laser pipe 51, then connect by particulate matter
The second lens 60 for receiving component 26 amplify, and then receive calculating by receiving sensor 59, computational methods are irradiated by laser
Projected area, be weighed as auxiliary.Then it can be adsorbed after particle analyte detection is complete on the filter, the filter membrane in filter is detachable
Get off to claim the weight of particulate matter.Do not allow particulate matter to enter in air pump 31 it can in addition contain play, protect air pump 31.It is three-in-one to pass
Sensor arrangement device and five in one sensor device device are connected on main circuit board by socket, finally detect data display to show
In display screen.
The mass figures of the utility model energy quick detection air, fast response time is conducive to grasping air quality in time,
So as to effectively improve furniture environment, or protected working is carried out, with ageing and operability.Cutting of the present utility model
Device is fixed on the mode of rotation and is stuck on survey haze device, and the fixed screw on survey haze chamber is unclamped slightly, then that cutter is suitable
Hour hands are screwed into fixed screw, be screwed into behind position and fixed screw is locked again, in order to avoid gas leakage.The utility model infrared laser irradiates
Other end heat absorbing glass falls light absorbs afterwards, in case light is fired back, if light, which is reflected, will influence the inspection of particulate matter
Survey.The utility model is cased with second spring outside screw, realizes that filter for installation is locked on survey haze chamber, by second spring handle
Filter for installation is withstood, because filter for installation just needs to change after a while, directly the top from the hole specialty surveyed on haze chamber
Filter membrane cover plate is opened with regard to filter for installation can be changed in pin top.
Specific embodiment of the utility model is these are only, but technical characteristic of the present utility model is not limited thereto.Appoint
How based on the utility model, to solve essentially identical technical problem, essentially identical technique effect is realized, it is made
Simple change, equivalent substitution or modification etc., are all covered by among protection domain of the present utility model.
Claims (9)
1. a kind of Multifunctional particulate matter detector, including plastic casing, cell apparatus (36), screen display device (37), three conjunctions
One sensor device, five in one sensor device and main circuit board (7), it is characterised in that：Including cutter (1), survey haze device
(2), filter for installation (3), sound-muffling box (30) and air pump (31)；The cutter (1) is rotatably connected in the survey haze device (2)
On；Described filter for installation (3) one end is connected with surveying haze device (2), and filter for installation (3) other end connects with air pump (31)
Connect, the survey haze device (2) includes infrared laser component (27), surveys haze chamber (22), particulate matter receiving unit (26) and laser suction
Receive component (48), the infrared laser component (27) with it is described survey haze chamber (22) be connected, the particulate matter receiving unit (26) and
Survey haze chamber (22) connection；The plastic casing includes lower cover (35) and upper casing (10), the lower cover (35) and the upper casing
(10) it is fixedly connected.
2. a kind of Multifunctional particulate matter detector according to claim 1, it is characterised in that：The filter for installation (3)
Including two the first sealing rings (21), filter membrane box (23), filter membrane (24), filter membrane lid (25), filter membrane cover plate (29), second spring
(281) and screw (28), two the first sealing rings (21) are respectively arranged in survey haze device (2) and filter membrane cover plate (29) is interior, described
Filter membrane box (23), filter membrane (24) and filter membrane lid (25) are connected to filter membrane cover plate (29) top in turn, and the filter membrane (24) is installed on
Between filter membrane box (23) and filter membrane lid (25), the screw (28) is inserted in second spring (281) and connected with filter membrane cover plate (29) bottom
Connect.
3. a kind of Multifunctional particulate matter detector according to claim 1, it is characterised in that：The three-in-one sensor dress
Put including three-in-one sensor body (4) and three-in-one sensor support (5), the three-in-one sensor support (5) is laterally propped up
Support the three-in-one sensor body (4).
4. a kind of Multifunctional particulate matter detector according to claim 1, it is characterised in that：The five in one sensor dress
Put including five in one sensor body (6) and five in one sensor stand (32), the five in one sensor stand (32) is laterally
Support the five in one sensor body (6).
5. a kind of Multifunctional particulate matter detector according to claim 1, it is characterised in that：The cutter (1) uses
Plastic inlet cover PM2.5 cutters.
6. a kind of Multifunctional particulate matter detector according to claim 1, it is characterised in that：The infrared laser component
(27) first line plate (49), laser fixation kit (50), infrared laser pipe (51), radiating aluminum pipe (52), the first spring are included
(53), the first lens (54), lens fixed seat (55), the 4th sealing ring (56) and sealing ring fixture (57), it is described infrared sharp
Light pipe (51) head is connected through laser fixation kit (50) with first line plate (49), infrared laser pipe (51) afterbody with
The connection of radiating aluminum pipe (52) one end, first spring (53), lens fixed seat (55) and sealing ring fixture (57) are pacified
Inside radiating aluminum pipe (52) other end, first lens (54) are connected with lens fixed seat (55), the 4th sealing
Circle (56) is connected with sealing ring fixture (57).
7. a kind of Multifunctional particulate matter detector according to claim 1, it is characterised in that：The particulate matter receiving unit
(26) include the second wiring board (58), receive sensor (59), the lens of two panels second (60) and the second sealing ring (61), described the
Two wiring boards (58), reception sensor (59), the lens of two panels second (60) and the second sealing ring (61) are connected with each other successively, described
Second wiring board (58) is welded with receiving sensor (59).
8. a kind of Multifunctional particulate matter detector according to claim 1, it is characterised in that：The laser absorption component
(48) heat absorbing glass (33), sponge support (34), the 3rd sealing ring (38) and glass cover-plate (20) are included.
9. a kind of Multifunctional particulate matter detector according to claim 1, it is characterised in that：Main circuit board (7) bag
Main circuit board body (71), pressure sensor (72), differential pressure pickup (73) and Temperature Humidity Sensor (74) are included, the pressure is passed
Sensor (72), differential pressure pickup (73) and Temperature Humidity Sensor (74) are installed on main circuit board body (71), the pressure
Sensor (72) and differential pressure pickup (73) mutually correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621191634.0U CN206563696U (en) | 2016-10-28 | 2016-10-28 | A kind of Multifunctional particulate matter detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621191634.0U CN206563696U (en) | 2016-10-28 | 2016-10-28 | A kind of Multifunctional particulate matter detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206563696U true CN206563696U (en) | 2017-10-17 |
Family
ID=60029614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621191634.0U Expired - Fee Related CN206563696U (en) | 2016-10-28 | 2016-10-28 | A kind of Multifunctional particulate matter detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206563696U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765156A (en) * | 2019-02-22 | 2019-05-17 | 北京英视睿达科技有限公司 | Air total suspended particles monitoring device based on Internet of Things |
| CN115266507A (en) * | 2022-08-23 | 2022-11-01 | 内蒙古华质检测技术有限公司 | Air particulate matter monitoring devices |
-
2016
- 2016-10-28 CN CN201621191634.0U patent/CN206563696U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765156A (en) * | 2019-02-22 | 2019-05-17 | 北京英视睿达科技有限公司 | Air total suspended particles monitoring device based on Internet of Things |
| CN109765156B (en) * | 2019-02-22 | 2024-06-07 | 北京英视睿达科技股份有限公司 | Air total suspended particle monitoring equipment based on Internet of things |
| CN115266507A (en) * | 2022-08-23 | 2022-11-01 | 内蒙古华质检测技术有限公司 | Air particulate matter monitoring devices |
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Granted publication date: 20171017 |