CN108645771A - A kind of devices and methods therefor of detection atmosphere particle concentration - Google Patents
A kind of devices and methods therefor of detection atmosphere particle concentration Download PDFInfo
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- CN108645771A CN108645771A CN201810910515.3A CN201810910515A CN108645771A CN 108645771 A CN108645771 A CN 108645771A CN 201810910515 A CN201810910515 A CN 201810910515A CN 108645771 A CN108645771 A CN 108645771A
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- 239000002245 particle Substances 0.000 title claims abstract description 70
- 238000001514 detection method Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 239000013618 particulate matter Substances 0.000 claims description 12
- 241000883990 Flabellum Species 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
- 238000000149 argon plasma sintering Methods 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 5
- 210000003128 head Anatomy 0.000 claims description 4
- 230000006837 decompression Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 3
- 239000000443 aerosol Substances 0.000 description 5
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000005427 atmospheric aerosol Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000010269 sulphur dioxide Nutrition 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000003958 fumigation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004291 sulphur dioxide Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- 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
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- 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)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The invention discloses a kind of devices and methods therefors of detection atmosphere particle concentration, including cylindrical detector, one end of the detector offers air inlet, and it is interconnected outside the other end of air inlet and detector, the inside of described detector one end is equipped with particle sensor, and the sense channel of particle sensor is interconnected with air inlet, the one end of the detector far from particle sensor is equipped with air extractor, microprocessor is installed in the side wall of the detector, the output end of the particle sensor and the input terminal of microprocessor are electrically connected, it is connected with data line on the roof of the detector.The present invention designs the atmosphere particle concentration detection device being convenient for carrying by particle sensor, and use is extremely convenient, can not only detect atmosphere particle concentration data in real time, data can be stored simultaneously for use, different power supply modes is designed, meets different situations demand, is simple and efficient.
Description
Technical field
The present invention relates to atmosphere pollution detection technique field more particularly to a kind of devices of detection atmosphere particle concentration
And its method.
Background technology
Atmospheric particulates are the general names of various solid-states present in air and liquid particles shape substance.Various particulate materials
It is evenly dispersed in one metastable huge suspension system of composition, i.e. aerosol system, therefore airborne particulate in air
Object is also referred to as atmospheric aerosol, refers to the particle and drop disperseed in air.Aerosol is multiphase system, by particle and gas group
At usually seen dust, fumigation, cigarette, mist, haze etc. belong to the scope of aerosol, in many documents, Atmospheric particulates
It all refer to the particulate matter in air with atmospheric aerosol.
The ingredient of Atmospheric particulates is very complicated, depends primarily on its source, mainly there is two kinds of natural source and artificial source, the latter
It endangers larger.Atmospheric particulates are divided into two kinds of primary particulate and secondary aerosol species academia, primary particulate be by
Natural pollution source and man-made pollution source, which are discharged into the atmosphere, directly contributes the particulate matter of pollution, for example, soil particle, sea salt particle,
Combustion fumes etc.；Secondary aerosol species are by certain contaminating gaseous components (such as sulfur dioxide, nitrogen oxides, hydrocarbonization in air
Close object etc.) between or these components and the normal components (such as oxygen) in air between reacted by photochemical oxidation, be catalyzed oxygen
Change reaction or other chemically react the particulate matter being converted into, such as Sulphur Dioxide generates sulfate.
The device that many of prior art is detected atmosphere particle concentration, for the assay method of number concentration
There are mainly two types of, chemical miillpore filter microscope count method and light scattering type particle counting method.Both methods pair is used at present
The device volume that atmosphere particle concentration is detected is generally all more huge, and occupied space is more, not readily portable and operation,
Therefore there are many restrictions when in use, the transmission of detection data is also relatively complicated, needs to solve these problems.
Invention content
It is huge convenient for taking that the purpose of the present invention is to solve atmosphere particle concentration detection device volumes in the prior art
The problem of band and use, and a kind of devices and methods therefor of the detection atmosphere particle concentration proposed.
To achieve the goals above, present invention employs following technical solutions：
A kind of device of detection atmosphere particle concentration, including cylindrical detector, it is characterised in that：The detector
One end offer air inlet, and be interconnected outside the other end of air inlet and detector, the inside peace of described detector one end
Equipped with particle sensor, and the sense channel of particle sensor is interconnected with air inlet, and the detector is sensed far from particle
One end of device is equipped with air extractor, and microprocessor, the output end of the particle sensor are equipped in the side wall of the detector
It is electrically connected with the input terminal of microprocessor, data line is connected on the roof of the detector, the data line is far from detection
One end of device is connected with USB plug, and the receipts being mutually matched with USB plug and data line are offered on the lateral wall of the detector
It receives slot, display screen, the output end of the microprocessor and the input terminal electricity of display screen is installed on the lateral wall of the detector
Property connection, the bottom end of the detector offer it is portable for electrical outlet, it is described portable for being connected with for plug in electrical outlet.
Preferably, the air extractor includes micro motor and the flabellum in micro motor drive shaft, it is described
The one end of detector far from particle sensor offers installing port, symmetrical there are two mounting plate on the madial wall of the installing port,
The micro motor is mounted on two mounting plates.
Preferably, the bottom end of the detector offers and for the mutually matched mounting hole of plug, the mounting hole
Madial wall on symmetrically open up there are two fixture block groove, the inside of two fixture block grooves is mounted on the first spring, described in two
The opposite one end of first spring is mounted on fixture block, symmetrically opened up on the lateral wall for plug there are two with fixture block it is mutual
The card slot of cooperation, the top for plug are arranged with two contact electrodes, on the roof inside the mounting hole
It is symmetrical to open up there are two spring eye, it is mounted on second spring on the roof inside two spring eyes, two described second
The bottom end of spring is mounted on copper sheet, and copper sheet cooperates with contact electrode, is symmetrically set on the lateral wall for plug
There are two positive stop strip, offered and the mutually matched limiting slot of positive stop strip on the madial wall of the mounting hole.
Preferably, the bottom end for plug is connected with power supply handle, being internally provided with for handle of power supply can fill
Electric lithium battery is equipped with power-on button on the lateral wall of the power supply handle, and the bottom end of the power supply handle offers charging and inserts
Mouthful.
Preferably, the bottom end for plug is electrically connected with power cord, the power cord is far from for the another of plug
One end is connected with decompression plug.
Preferably, two opposite one end of the fixture block are hemispherical dome structure, the card slot is similarly hemispherical-shaped aperture.
A kind of method of detection atmosphere particle concentration is as follows：It powers to detector, air extractor is taken out from left side air inlet
Gas, particle sensor to by gas particles object concentration be detected, when laser irradiation to the particulate matter by test position
When will produce faint light scattering, the scattering waveform of light is changed by particulate matter diameter, is united by the waveform separation of different-grain diameter
Meter and reduction formula obtain the number concentration of the real-time particulate matter of different-grain diameter, are obtained according to scaling method unified with official's unit
Mass concentration, detection data is sent to microprocessor in real time, and detection data is sent to display screen by microprocessor, you can in real time
Detection data is observed, USB plug is connect with computer and detection data can be downloaded, will be inserted into mounting hole for plug
Fixture block is first squeezed into inside fixture block groove for plug upper end, is then fully entered in mounting hole by portion, and fixture block springs into right in card slot
Simply fixed, two contact electrodes and two copper sheets close contact realization circuit turn-ons are carried out for plug.
Compared with prior art, the invention has the beneficial effects that：
1, the present invention is improved using existing particle sensor, is synthesized on small and exquisite device, can be realized
The basic function that Atmospheric particulates are detected, while detection data can be processed and displayed in time, conveniently take
Band is not limited by space and geographical location, highly effective；
2, provided with convenient hand-held handle and the plug being attached with 220V alternating currents, portable need can be met
It seeks and can ensure when working long hours power supply abundance, cope with different operating demand, flexibility is high, reliable and stable；
3, power supply interface is completely embedded and powered stable, it is ensured that detector can steady operation, while for plug side
Just it is attached and dismantles, simple operation, usage experience is good.
In terms of comprehensive, the present invention designs the atmosphere particle concentration detection device being convenient for carrying by particle sensor,
Using extremely convenient, atmosphere particle concentration data can not only be detected in real time, while data can be stored to for use, design
Go out different power supply modes, meets different situations demand, be simple and efficient.
Description of the drawings
Fig. 1 is a kind of front section view of the device of detection atmosphere particle concentration proposed by the present invention；
Fig. 2 is a kind of positive structure schematic of the device of detection atmosphere particle concentration proposed by the present invention；
Fig. 3 is a kind of right side view of the device of detection atmosphere particle concentration proposed by the present invention；
Fig. 4 is the front view and vertical view of a kind of power supply handle of the device of detection atmosphere particle concentration proposed by the present invention
Figure；
Fig. 5 is a kind of enlarged drawing of the part A structure of the device of detection atmosphere particle concentration proposed by the present invention；
Fig. 6 is a kind of structural representation of another embodiment of the device of detection atmosphere particle concentration proposed by the present invention
Figure.
In figure：1 detector, 2 air inlets, 3 particle sensors, 4 microprocessors, 5 data lines, 6USB plugs, 7 are for electric mortiser
Head, 8 positive stop strips, 9 contact electrodes, 10 power supply handles, 11 collets, 12 rechargeable lithium batteries, 13 charging sockets, 14 power-on buttons,
15 installing ports, 16 micro motors, 17 flabellums, 18 mounting plates, 19 display screens, 20 power cords, 21 mounting holes, 22 fixture block grooves, 23 cards
Block, 24 first springs, 25 copper sheets, 26 second springs.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-5, a kind of device of detection atmosphere particle concentration, including cylindrical detector 1, detector 1
One end offers air inlet 2, and air inlet 2 is interconnected with outside the other end of detector 1, the inside installation of 1 one end of detector
There is particle sensor 3, and the sense channel of particle sensor 3 is interconnected with air inlet 2, particle sensor 3 is swashed using PM2.5
Optical sensor SDS011 types, which employs light scattering type particle counting methods, can directly obtain measurement data, in time efficiently.
The one end of detector 1 far from particle sensor 3 is equipped with air extractor, and microprocessor is equipped in the side wall of detector 1
Device 4, the output end of particle sensor 3 are electrically connected with the input terminal of microprocessor 4, and microprocessor 4 is using Modicon M171
Type has data storage function, can preserve detection data, remain post-processing, be connected on the roof of detector 1
Data line 5, the one end of data line 5 far from detector 1 are connected with USB plug 6, offer on the lateral wall of detector 1 and are inserted with USB
First 6 and the accommodating groove that is mutually matched of data line 5, it is packed up when data line 5 need not be used, avoids that pendant is dragged to influence to use,
Display screen 19 is installed on the lateral wall of detector 1, the output end of microprocessor 4 is electrically connected with the input terminal of display screen 19,
The bottom end of detector 1 offer it is portable for electrical outlet, it is portable for being connected in electrical outlet for plug 7, it is portable in electrical outlet
It can be inserted into different for electric installation, portable operation or long continuation of the journey power supply of the realization to detector 1.
A kind of device of detection atmosphere particle concentration, detection method are as follows：Give detector 1 power, air extractor from
Left side air inlet 2 be evacuated, particle sensor 3 to by gas particles object concentration be detected, when laser irradiation to pass through examine
It will produce faint light scattering when the particulate matter that location is set, the scattering waveform of light is changed by particulate matter diameter, passes through different grains
The waveform separation statistics and reduction formula of diameter obtain the number concentration of the real-time particulate matter of different-grain diameter, are obtained according to scaling method
With the mass concentration that official's unit is unified, detection data is sent to microprocessor 4 in real time, and microprocessor 4 sends detection data
To display screen 19, you can detection data is observed in real time, and USB plug 6 is connect with computer and detection data can be downloaded, it will be for
Plug 7 be inserted into mounting hole 21 inside, first fixture block 23 is squeezed into inside fixture block groove 22 for 7 upper end of plug, then all into
Enter in mounting hole 21, fixture block 23 is sprung into card slot to simply being fixed for plug 7, two contact electrodes 9 and two copper sheets
25 are in close contact realization circuit turn-on.
As a preferred embodiment of this case, air extractor includes micro motor 16 and is driven mounted on micro motor 16
Flabellum 17 on moving axis, the one end of detector 1 far from particle sensor 3 offer installing port 15, on the madial wall of installing port 15
Mounting plate 18 there are two symmetrical, micro motor 16 are mounted on two mounting plates 18, utilize 16 He of micro motor being available anywhere
Flabellum 17 can aspirate air, and detected air is made to enter into and through particle sensor 3 from air inlet 2 to tested
Particle concentration is measured, is simple and efficient, it is of low cost but be fully able to realize required effect.
The bottom end of detector 1 offer with for 7 mutually matched mounting hole 21 of plug, it is right on the madial wall of mounting hole 21
Title is opened up there are two fixture block groove 22, and the inside of two fixture block grooves 22 is mounted on the first spring 24, and two the first springs 24 are opposite
One end be mounted on fixture block 23, for symmetrically opened up on the lateral wall of plug 7 there are two with 23 mutually matched card slot of fixture block,
Two opposite one end of fixture block 23 are hemispherical dome structure, and card slot is similarly hemispherical-shaped aperture.
When to being inserted for plug 7, its position alignment is directly inserted into mounting hole 21, due to 23 end of fixture block
Head is hemispherical dome structure, therefore can first be squeezed into fixture block 23 in fixture block groove 22 until card slot and 23 position of fixture block weight for plug 7
It closes, fixture block 23, which is sprung into card slot, to be realized to the simple fixation for plug 7, similarly, when extracting for plug 7, is only needed slightly
Firmly outside drawing.
Two contact electrodes 9 are arranged with for the top of plug 7, two are symmetrically offered on the roof inside mounting hole 21
A spring eye is mounted on second spring 26 on the roof inside two spring eyes, and the bottom end of two second springs 26 is respectively mounted
There is copper sheet 25, and copper sheet 25 cooperates with contact electrode 9, for being arranged with two positive stop strips 8 on the lateral wall of plug 7,
It is offered on the madial wall of mounting hole 21 and utilizes limit when being inserted into for plug 7 with 8 mutually matched limiting slot of positive stop strip
8 alignment orientation of item and angle will be fixed for plug 7, and two contact electrodes 9 and copper sheet 25 are in close contact, and realize that electric current is led
It is logical.
For the powerup issue of detector 1, this programme is provided with two different embodiments, has their own advantages：
1, the bottom end for plug 7 is connected with power supply handle 10, and power supply handle 10 is internally provided with rechargeable lithium battery 12,
Power-on button 14 is installed, the bottom end of power supply handle 10 offers charging socket 13 on the lateral wall of power supply handle 10.
Detector 1 is powered using the first embodiment, can greatly promote the portability of detector 1, no
It is limited by geographical location, can be used everywhere, and is easy to operate, battery is reusable.
2, the bottom end for plug 7 is electrically connected with power cord 20, and power cord 20 is connected with far from the other end for plug 7
It is depressured plug, decompression plug is common mobile phone charging head, is the prior art, can 220 alternating currents be reduced to particle sensor 3
The voltage that can be used.
Detector 1 is powered using second of embodiment, it can be ensured that the electricity of detector 1 will not be used up, more
Add the stability improved when detector 1 works, is suitble to use under the state of working long hours.
Although detector 1, air inlet 2, particle sensor 3, microprocessor 4, data line 5, USB is used more herein
Plug 6, for plug 7, positive stop strip 8, contact electrode 9, power supply handle 10, collet 11, rechargeable lithium battery 12, charging socket
13, power-on button 14, installing port 15, micro motor 16, flabellum 17, mounting plate 18, display screen 19, power cord 20, mounting hole 21,
The terms such as fixture block groove 22, fixture block 23, the first spring 24, copper sheet 25, second spring 26, but be not precluded using other terms can
Energy property is construed as any one the use of these items is only for more easily describing and explaining the essence of the present invention
The additional limitation of kind is all disagreed with spirit of that invention.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Claims (7)
1. a kind of device of detection atmosphere particle concentration, including cylindrical detector (1), it is characterised in that：The detection
One end of device (1) offers air inlet (2), and air inlet (2) is interconnected with outside the other end of detector (1), the detection
The inside of device (1) one end is equipped with particle sensor (3), and the sense channel of particle sensor (3) is mutually interconnected with air inlet (2)
Logical, the one end of the detector (1) far from particle sensor (3) is equipped with air extractor, is installed in the side wall of the detector (1)
There are microprocessor (4), the output end of the particle sensor (3) to be electrically connected with the input terminal of microprocessor (4), the detection
Data line (5) is connected on the roof of device (1), the one end of the data line (5) far from detector (1) is connected with USB plug
(6), the accommodating groove being mutually matched with USB plug (6) and data line (5) is offered on the lateral wall of the detector (1), it is described
Display screen (19), the input of the output end and display screen (19) of the microprocessor (4) are installed on the lateral wall of detector (1)
End is electrically connected, the bottom end of the detector (1) offer it is portable for electrical outlet, it is described portable for being connected with power supply in electrical outlet
Plug (7).
2. a kind of device of detection atmosphere particle concentration according to claim 1, it is characterised in that：The air extractor
Flabellum (17) including micro motor (16) and in micro motor (16) drive shaft, the detector (1) is far from particle
One end of sensor (3) offers installing port (15), symmetrical there are two mounting plate (18) on the madial wall of the installing port (15),
The micro motor (16) is mounted on two mounting plates (18).
3. a kind of device of detection atmosphere particle concentration according to claim 1, it is characterised in that：The detector
(1) bottom end offer with for plug (7) mutually matched mounting hole (21), it is symmetrical on the madial wall of the mounting hole (21)
It opens up there are two fixture block groove (22), the inside of two fixture block grooves (22) is mounted on the first spring (24), two described the
The opposite one end of one spring (24) is mounted on fixture block (23), symmetrically opened up on the lateral wall for plug (7) there are two
With fixture block (23) mutually matched card slot, the top for plug (7) is arranged with two contact electrodes (9), institute
Spring eye there are two symmetrically being opened up on the internal roof of mounting hole (21) is stated, is respectively mounted on the roof inside two spring eyes
Have a second spring (26), the bottom ends of two second springs (26) is mounted on copper sheet (25), and copper sheet (25) with contact electricity
Pole (9) cooperates, and two positive stop strips (8) are arranged on the lateral wall for plug (7), the mounting hole (21)
It is offered on madial wall and positive stop strip (8) mutually matched limiting slot.
4. a kind of device of detection atmosphere particle concentration according to claim 1, it is characterised in that：It is described for plug
(7) bottom end is connected with power supply handle (10), and the power supply handle (10) is internally provided with rechargeable lithium battery (12), the confession
Power-on button (14) is installed, the bottom end of the power supply handle (10) offers charging socket on the lateral wall of electric hand handle (10)
(13)。
5. a kind of device of detection atmosphere particle concentration according to claim 1, it is characterised in that：It is described for plug
(7) bottom end is electrically connected with power cord (20), and the power cord (20) is connected with decompression far from the other end for plug (7) and inserts
Head.
6. a kind of device of detection atmosphere particle concentration according to claim 3, it is characterised in that：Two fixture blocks
(23) opposite one end is hemispherical dome structure, and the card slot is similarly hemispherical-shaped aperture.
7. a kind of method of detection atmosphere particle concentration, which is characterized in that include the following steps：It powers, takes out to detector (1)
Device of air from left side air inlet (2) be evacuated, particle sensor (3) to by gas particles object concentration be detected, work as laser
It will produce faint light scattering when being irradiated to the particulate matter by test position, the scattering waveform of light is changed by particulate matter diameter
Become, the number concentration of the real-time particulate matter of different-grain diameter is obtained by the waveform separation statistics and reduction formula of different-grain diameter, is pressed
It is obtained with the unified mass concentration of official's unit according to scaling method, detection data is sent to microprocessor (4), microprocessor in real time
(4) detection data is sent to display screen (19), you can observe detection data in real time, USB plug (6) is connect with computer can be right
Detection data is downloaded, and mounting hole (21) inside will be inserted into for plug (7), for plug (7) upper end first by fixture block
(23) it is internal to squeeze into fixture block groove (22), then fully enters in mounting hole (21), fixture block (23) is sprung into card slot to for plug
(7) it carries out simply fixing, two contact electrodes (9) are in close contact with two copper sheets (25) realizes circuit turn-on.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810910515.3A CN108645771A (en) | 2018-08-11 | 2018-08-11 | A kind of devices and methods therefor of detection atmosphere particle concentration |
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| CN201810910515.3A CN108645771A (en) | 2018-08-11 | 2018-08-11 | A kind of devices and methods therefor of detection atmosphere particle concentration |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916694A (en) * | 2019-04-10 | 2019-06-21 | 重庆交通大学 | A kind of ultralow wall damage sub-micron terminal virtual impactor |
| CN110243742A (en) * | 2019-07-29 | 2019-09-17 | 上海和璞电子技术有限公司 | A kind of device and method of engine air filter rear end powder concentration measurement |
| CN112945816A (en) * | 2021-01-29 | 2021-06-11 | 湖北境晨环境科技有限公司 | Portable atmospheric particulates on-line monitoring equipment |
| CN113324885A (en) * | 2021-05-21 | 2021-08-31 | 河南建筑职业技术学院 | Gardens greenery patches air particulate matter detects and early warning device |
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