CN107305177A - A kind of particulate matter visualization device and portable particulate matter detecting system - Google Patents
A kind of particulate matter visualization device and portable particulate matter detecting system Download PDFInfo
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- CN107305177A CN107305177A CN201610252322.4A CN201610252322A CN107305177A CN 107305177 A CN107305177 A CN 107305177A CN 201610252322 A CN201610252322 A CN 201610252322A CN 107305177 A CN107305177 A CN 107305177A
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- 239000013618 particulate matter Substances 0.000 title claims abstract description 169
- 238000012800 visualization Methods 0.000 title claims abstract description 60
- 239000012530 fluid Substances 0.000 claims abstract description 143
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims description 56
- 238000003384 imaging method Methods 0.000 claims description 33
- 230000003287 optical effect Effects 0.000 claims description 30
- 238000004891 communication Methods 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 16
- 239000007789 gas Substances 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 10
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- 238000012372 quality testing Methods 0.000 description 3
- 239000012491 analyte Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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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
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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
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means
- G01N15/0227—Investigating particle size or size distribution by optical means using imaging; using holography
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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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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a kind of particulate matter visualization device and portable particulate matter detecting system, the device includes：Fluid passage and laser module；Flowed through for fluid the fluid passage；The laser module is used to produce laser beam so that the laser beam is incident in the fluid passage on the fluid of designated area, the scattered light of the particulate matter formed in fluid, to reflect the characteristic of the particulate matter in fluid.According to this programme, the detection to the particulate matter in fluid can be realized whenever and wherever possible, program clear principle, configuration is reasonable, cost is low, weight is small, operating process is convenient, it is easy to carry, it is especially suitable for family, school, office, hospital, workshop, building site, particulate matter in the vehicles etc. in the air in place is detected, it also is adapted for detecting the particulate matter in various other gases or liquid, under the social trend that current environmental attention rate is increasingly improved, reduction of this programme for testing cost, whole people's universalness of detection means has great importance.
Description
Technical field
The present invention relates to particulate matter detection technique field, and in particular to a kind of particulate matter visualization device and just
Take a quality testing examining system that declines.
Background technology
Social economy continues to develop the particulate that huge challenge, air and water body are brought to environmental protection
Thing pollution constantly deteriorates in recent years, especially the highly developed gathering area of mankind's activity, automobile burning
Produced in the smokeshade thing that is produced in the discharge particulate matter of tail gas, industrial processes, urban construction
It is micro- that building castoff stacks airborne dust particulate matter, house refuse stacking ground airborne dust particulate matter, urban surface airborne dust
Grain thing, these particulate matters are mixed, and accumulation forms complicated contaminated with particles, can not only give people
Life make troubles, the body that can more seriously give people causes damage.At the same time, with life
The accurate continuous improvement of running water, the current social public is increasingly lifted to the concern temperature of ecological environment, especially closed
The contaminated with particles in air and water body is noted, makes every effort to make improvement to current contaminated with particles present situation.
But in the prior art, the big multi-configuration of device detected to the particulate matter in air and water body is answered
Miscellaneous, cost is high, volume is big, weight is big, is unsuitable for applying in daily production and living place, it is impossible to complete
Face, effectively public's scope popularize and develop particulate analyte detection, be unfavorable for controlling contaminated with particles
Reason.
The content of the invention
In view of the above problems, it is proposed that the present invention overcomes above mentioned problem or at least part to provide one kind
Particulate matter visualization device and portable particulate matter detecting system that ground solves the above problems.
According to one aspect of the present invention there is provided a kind of particulate matter visualization device, the device includes：
Fluid passage and laser module；
Flowed through for fluid the fluid passage；
The laser module is used to produce laser beam so that the laser beam is incident on the fluid and led to
In road on the fluid of designated area, the scattered light of the particulate matter formed in fluid is micro- in fluid to reflect
The characteristic of grain thing.
Alternatively, the laser beam vertical incidence that the laser module is produced is specified in the fluid passage
On the fluid in region, in the direction of propagation and the fluid passage of the laser beam that the laser module is produced
The flow direction of fluid be mutually perpendicular to.
Alternatively, the device further comprises：Amplifying lens group；
The amplifying lens group includes one or more lens, enters for the scattered light to particulate matter in fluid
Line convergence.
Alternatively, the primary optical axis of the amplifying lens group passes through the center of the designated area, the amplification
The distance between center of the optical centre of lens group and the designated area is not more than the amplifying lens group
Focal length.
Alternatively, the flow direction of the primary optical axis of the amplifying lens group and the fluid in the fluid passage
It is mutually perpendicular to, the propagation for the laser beam that the primary optical axis of the amplifying lens group is produced with the laser module
Direction is mutually perpendicular to.
Alternatively, the device further comprises：Fluid actuator；
The fluid actuator is used for the stable flow velocity for maintaining the fluid in the fluid passage.
Alternatively, the fluid actuator includes：Ventilating fan or fluid pump.
Alternatively, ripple of the wavelength for the laser beam that the laser module is produced in visible ray near visible
In long scope.
According to another aspect of the present invention, there is provided a kind of portable particulate matter detecting system, the system
Including：As above the particulate matter visualization device described in any one, and, image is obtained and processing unit；
The light of the particulate matter visualization device output is entered to be located in image acquisition and processing unit
Reason.
Alternatively, described image is obtained and processing unit includes：Imaging lens group, imaging sensor, figure
As processing module and display；
The imaging lens group includes one or more lens, for by the particulate matter visualization device
The particulate matter that scattered light is sent in fluid is imaged onto in described image sensor；
Described image sensor has pel array, for the optical signal received to be converted into electric signal,
The image of the particulate matter formed in fluid；
Described image processing module is used to analyze and process the image of the particulate matter in fluid, is flowed
The characteristic of particulate matter in body；
The display be used for show described image sensor formation fluid in particulate matter image and
The characteristic of particulate matter in the fluid that the analysis of described image processing module is obtained.
Alternatively, the characteristic of the particulate matter in the fluid includes following one or more：It is micro- in fluid
The size of grain thing, the characteristics of luminescence of particulate matter in fluid, the density of particulate matter in fluid.
Alternatively, the particulate matter visualization device is obtained with described image and processing unit is arranged on two
In independent separable shell, or, the particulate matter visualization device is obtained and handled with described image
Device is arranged in a shell；
Exist between the particulate matter visualization device and described image acquisition and processing unit wired or wireless
The communications conduit of mode, or, the particulate matter visualization device is obtained and processing unit with described image
Between be not present wired or wireless way communications conduit.
Alternatively, the particulate matter visualization device further comprises：One or more center calibration marks；
The particulate matter visualization device is obtained with described image and processing unit is according to the central campus fiducial mark
Note calibration relative position so that the center that the primary optical axis of the imaging lens group passes through the designated area.
Alternatively, the central campus fiducial mark is designated as being arranged on the housing face-plate of the particulate matter visualization device
On light-transparent pattern.
Alternatively, described image is obtained and processing unit is the mobile terminal with shoot function.
Technique according to the invention scheme, by a particulate matter visualization device to the particulate matter in fluid
Carry out laser irradiation and optical amplifier so that the relevant information of the particulate matter in fluid is with the scattering of particulate matter
The form of light is exported, then the scattered light of particulate matter is obtained by an image acquisition and processing unit,
Imaging and analysis, obtain the relevant information of particulate matter entrained in the scattered light of particulate matter, obtain particulate
The characteristic of thing；According to this programme, the detection to the particulate matter in fluid, the party can be realized whenever and wherever possible
Case clear principle, configuration is reasonable, and cost is low, and weight is small, and operating process is convenient, easy to carry, especially
It is adapted to the air to the place such as in family, school, office, hospital, workshop, building site, the vehicles
In particulate matter detected, also be adapted for detecting the particulate matter in various other gases or liquid,
Under the social trend that current environmental attention rate is increasingly improved, the technical scheme that the present invention is provided is for inspection
The reduction of cost, whole people's universalness of detection means is surveyed to have great importance.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the skill of the present invention
Art means, and can be practiced according to the content of specification, and in order to allow the present invention's above and other
Objects, features and advantages can become apparent, below especially exemplified by the embodiment of the present invention.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit are for this
Field those of ordinary skill will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment,
And it is not considered as limitation of the present invention.And in whole accompanying drawing, be denoted by the same reference numerals
Identical part.In the accompanying drawings：
Fig. 1 shows a kind of structure perspective of particulate matter visualization device according to an embodiment of the invention
Schematic diagram；
Fig. 2 shows a kind of structure section of particulate matter visualization device according to an embodiment of the invention
Schematic diagram；
Fig. 3 shows that a kind of image according to an embodiment of the invention is obtained and the structure of processing unit is broken
Face schematic diagram；
Fig. 4 shows a kind of structure of portable particulate matter detecting system according to an embodiment of the invention
Sectional schematic diagram；
Fig. 5 shows a kind of showing for portable particulate matter detecting system according to an embodiment of the invention
It is intended to；
Fig. 6 shows that one kind according to an embodiment of the invention is entered using portable particulate matter detecting system
The flow chart of the method for row detection；
100, particulate matter visualization device；110, fluid passage；111, the entrance of fluid passage；112,
The outlet of fluid passage；113, designated area；120, laser module；121, laser beam；130,
Amplifying lens group；140, fluid actuator；150, control circuit；160, particulate matter visualization device
Shell；161, image obtains opening；162, center calibration mark；170, power interface；200, figure
As acquisition and processing unit；210, imaging lens group；220, imaging sensor；230, image procossing mould
Block；240, display；250, image obtain and processing unit shell.
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although being shown in accompanying drawing
The exemplary embodiment of the disclosure, it being understood, however, that may be realized in various forms the disclosure without
It should be limited by embodiments set forth here.Conversely it is able to more thoroughly there is provided these embodiments
Understand the disclosure, and can by the scope of the present disclosure completely convey to those skilled in the art.
Fig. 1 shows a kind of structure perspective of particulate matter visualization device according to an embodiment of the invention
Schematic diagram, the particulate matter visualization device uses laser irradiation and the mode of optical amplifier so that fluid
In the characteristic relevant information of particulate matter can be detected.As shown in figure 1, the particulate matter is visually disguised
Put including：Fluid passage 110, laser module 120, amplifying lens group 130.
Fluid passage 110 is flowed through for fluid, shows that the entrance 111 and fluid of fluid passage lead in Fig. 1
The outlet 112 in road, when the particulate matter in fluid is detected, as shown by the arrows in Figure 1 fluid from
The entrance 111 of fluid passage is flowed into, and is flowed out from the outlet 112 of fluid passage, in fluid passage 110
Formed with the fluid stream for stablizing flow velocity.Wherein, when fluid is liquid, fluid passage 110 is closing
, when fluid is gas, fluid passage 110 can not be completely enclosed.
Laser module 120 is used to produce laser beam 121, and laser beam 121 is incident on fluid passage 110
On the fluid of middle designated area, due to including particulate matter in fluid, laser beam 121 is incident on fluid
Had an effect with the particulate matter in fluid, reflection of the particulate matter in the presence of laser beam 121 to light,
Refraction, scattering etc. effect, formed fluid in particulate matter as the particulate matter in the fluid of light source scattering
The scattered light of particulate matter in light, the fluid carries the letter such as size, quantity, luminescence feature of particulate matter
The characteristic of particulate matter in breath, reflection fluid.In the present embodiment, the laser light that laser module 120 is produced
The wavelength of beam 121 is common such as red light wavelength or green glow in the wave-length coverage of visible ray near visible
Wavelength.
It is one that amplifying lens group 130, which includes amplifying lens group 130 in one or more lens, the present embodiment,
Individual unzoned lens, naturally it is also possible to use the other kinds of lens of such as compound lens or diffraction lens, is used
In assemble fluid in particulate matter scattered light, to sent in fluid scattered light particulate matter carry out optics into
Picture, is that follow-up imaging and image are obtained and prepared.In other embodiments, particulate matter visualization device
In the scattered light that sends of the particulate matter that can be not provided with amplifying lens group 130, fluid subsequently directly entering
Row imaging, can be selected depending on real needs.
As shown in figure 1, particulate matter visualization device also includes fluid actuator 140, for maintaining fluid
The stable flow velocity of fluid in passage 110, such as ventilating fan or fluid pump；Particulate matter visualization device is also
Including a control circuit 150, for controlling laser module 120 and fluid actuator 140, circuit is controlled
150 can include starting switch, can also include timer circuit, for closing laser module 120 automatically
With fluid actuator 140, one or more light emitting diodes can also be included, for showing that particulate matter can
Put and whether start depending on makeup, and timing circuit state etc..Particulate matter visualization device in the present embodiment
In a shell 160, the entrance 111 of fluid passage and the outlet 112 of fluid passage are set respectively
Put and be additionally provided with power interface 170 on two relative sides of shell 160, shell 160, at it
In his embodiment, particulate matter visualization device can use internal battery, can also use external cell or
External power source, can also support other power supply modes, in the case where using external cell or external power source,
Particulate matter visualization device has one or more power interfaces 170.
Fig. 2 shows a kind of structure section of particulate matter visualization device according to an embodiment of the invention
Schematic diagram, for the position relationship between each part in more precisely bright particulate matter visualization device.As schemed
Shown in 2, the vertical incidence of laser beam 121 that laser module 120 is produced is specified in fluid passage 110
On the fluid in region 113, the flow direction of fluid is perpendicular to paper, the direction of propagation of laser beam 121
It is mutually perpendicular to the flow direction of fluid, the scattered light of the particulate matter formed in fluid.Amplifying lens group 130
The top of fluid passage 110 is arranged on, the primary optical axis of amplifying lens group 130 passes through designated area 113
The distance between center, the optical centre of amplifying lens group 130 and center of designated area 113 are not more than
The focal length of amplifying lens group 130, to realize optical imagery enlarging function；The key light of amplifying lens group 130
The direction of propagation of axle and laser beam 121 is mutually perpendicular to, the primary optical axis of amplifying lens group 130 and fluid
Flow direction is mutually perpendicular to.
In the present embodiment, particulate matter visualization device uses stand-alone shell 160, in leaning on for shell 160
Image is set to obtain on nearly amplifying lens group 130 and the panel of the primary optical axis perpendicular to amplifying lens group 130
Opening 161 so that after the amplified lens group 130 of scattered light of the particulate matter in fluid is assembled, formed
Fluid in particulate matter amplification the virtual image from the image obtain opening 161 export；Further, exist
In the remote amplifying lens group 130 and the panel of the primary optical axis perpendicular to amplifying lens group 130 of shell 160
Setting center calibration mark 162, is such as set in the panel and the primary optical axis intersection of amplifying lens group 130
Light-transparent pattern constitutes center calibration mark 162.
Fig. 3 shows that a kind of image according to an embodiment of the invention is obtained and the structure of processing unit is broken
Face schematic diagram, the image is obtained and processing unit forms corresponding image for obtaining input light, by right
Acquired image carries out analyzing and processing the information calculated entrained by input light.As shown in figure 3, the figure
As acquisition and processing unit include：Imaging lens group 210, imaging sensor 220, image processing module
230 and display 240.
Imaging lens group 210 includes one or more lens, by adjusting imaging lens group 210 and image
The distance between sensor 220 so that input light incides image sensing after imaging lens group 210
On device 220；Imaging sensor 220 has two-dimensional array, for by optical signal incident thereon
Electric signal is converted into, corresponding two dimensional image is formed；Image processing module 230 can include special integrated
The parts such as circuit, microprocessor, operational software, the image for handling the formation of imaging sensor 220,
Calculate the corresponding information that the image is reflected；Display 240 is formed for image sensor 220
Image and the result that calculates of image processing module 230, realize the interactive interface with user.This implementation
In example, the image is obtained and processing unit is arranged in a shell 250.
Fig. 4 shows a kind of structure of portable particulate matter detecting system according to an embodiment of the invention
Sectional schematic diagram.As shown in figure 4, the portable particulate matter detecting system includes：Particulate matter is visually disguised
100 and image acquisition and processing unit 200 are put, its Cleaning Principle is：
The specific embodiment of particulate matter visualization device 100 can with the particulate matter above shown in Fig. 1-Fig. 2
The embodiment put depending on disguising is identical, in the presence of fluid actuator 140, includes the fluid of particulate matter
Flowed through from fluid passage 110, the vertical incidence of laser beam 121 that laser module 120 is produced is in fluid
In passage 110 on the fluid of designated area 113, the scattered light of the particulate matter formed in fluid, in fluid
Particulate matter scattered light by amplifying lens group 130 convergence after, formed fluid in particulate matter amplification
The virtual image, be output to image obtain and processing unit 200 in handled；Image is obtained and processing unit
200 specific embodiment is obtained with image above shown in Fig. 3 and the embodiment of processing unit is identical,
The light that particulate matter visualization device 100 is exported incides imaging sensor after imaging lens group 210
On 220 so that the amplification of the particulate matter in the fluid that imaging len 210 forms amplifying lens group 130
The virtual image be further imaged onto on imaging sensor 220, imaging sensor 220 is by optical signal to telecommunications
Number conversion obtain the image of particulate matter in fluid, particulate matter in 230 pairs of fluids of image processing module
Image carries out analysis calculating, obtains the characteristic of the particulate matter in fluid；By the image of the particulate matter obtained
And the feature of particulate matter shows on display 240 to interact with user so that user, which is known, to be worked as
The characteristic of particulate matter in the fluid of preceding detection.Wherein, the characteristic of the particulate matter in fluid is included as next
Plant or a variety of：In the size of particulate matter in fluid, the characteristics of luminescence of the particulate matter in fluid, fluid
Density of particulate matter etc.；Image processing module 230 can have network function, be taken by network with outside
Business device connection, carries out partial data computing and store function, can also be realized by network on the server
The function of data sharing is carried out with other particulate matter detection means.
It is portable to decline during the particulate matter in fluid is detected based on above-mentioned Cleaning Principle
Between particulate matter visualization device 100 and image acquisition and processing unit 200 in grain quality testing examining system
Relative position is required, specifically, in order that the light that particulate matter visualization device 100 is exported is effective
Ground enters in image acquisition and processing unit 200, it is necessary to ensure that the primary optical axis of imaging lens group 210 passes through
The immediate vicinity of designated area 113, in the present embodiment, the primary optical axis of imaging lens group 210 and amplification
The primary optical axis of lens group 130 is conllinear.
Particulate matter visualization device 100 and image are obtained and processing unit 200 can be separately mounted to two
In independent shell, it can also be commonly mounted in a unified shell, when particulate matter visualization device
100 and image is obtained and processing unit 200 is when being separately mounted in two independent shells, in order to ensure
Relative position between particulate matter visualization device 100 and image acquisition and processing unit 200 meets the requirements,
, it is necessary to shell 160 by being arranged on particulate matter visualization device 100 before particulate analyte detection is carried out
On center calibration mark 162 to obtain and processing unit particulate matter visualization device 100 and image
Relative position between 200 is calibrated.In the present embodiment, center calibration mark 162 is to be opened in
In the remote amplifying lens group 130 and the panel of the primary optical axis perpendicular to amplifying lens group 130 of shell 160
Multiple apertures, the light in external environment enters particulate matter visualization device 100 by the aperture opened up
In, incided after amplifying lens group 130 in imaging lens group 210, imaging lens group 210 will enter
Photoimaging thereon is mapped to imaging sensor 220, imaging sensor 220 obtains center calibration mark
162 image simultaneously shows on display 240, adjustment image obtain and processing unit 200 position and
Direction is until meet above-mentioned requirements.After calibration terminates, center calibration mark 162 is covered, extraneous ring is blocked
Interference of the light to detection process in border.
In one embodiment of the invention, when particulate matter visualization device 100 and image are obtained and are handled
When device 200 is respectively mounted in a separate housing, the particulate matter in portable particulate matter detecting system can
100 are put depending on makeup and image is obtained and processing unit 200 can use wired or wireless way connection communication,
Can also be without using wired or wireless way connection communication.
In one embodiment of the invention, when particulate matter visualization device 100 and image are obtained and are handled
When device 200 is respectively mounted in a separate housing, image is obtained and processing unit 200 can be one
Mobile terminal with shoot function.Fig. 5 shows that one kind according to an embodiment of the invention is portable
Decline a schematic diagram for quality testing examining system, it can be seen that in the present embodiment, image is obtained and located
It is a smart mobile phone to manage device 200.
Fig. 6 shows that one kind according to an embodiment of the invention is entered using portable particulate matter detecting system
The flow chart of the method for row detection, the present embodiment uses portable particulate matter detecting system as shown in Figure 4,
Its structure has hereinbefore been described in detail.As shown in fig. 6, this method includes：
Step S1, image is obtained and processing unit 200 is placed on the upper of particulate matter visualization device 100
Side；Specifically, image is obtained and the imaging lens group 210 of processing unit 200 is visual towards particulate matter
100 amplifying lens group 130 is put in makeup.
Step S2, particulate matter visualization device 100 and image are obtained by center calibration mark 162 and
The relative position of processing unit 200 is adjusted；Specifically, extraneous light is allowed to pass through center calibration mark
162 enter in particulate matter visualization device 100, and the center calibration mark 162 from display 240 is adjusted
Whole image acquisition and the position and direction of processing unit 200 so that the primary optical axis pair of imaging lens group 210
The primary optical axis of quasi- amplifying lens group 130 so that the long side of the rectangle diagram picture shown on display 240 with
The direction of propagation of laser beam 121 is parallel.
Step S3, calibration is finished, and portable particulate matter detecting system is placed on platform, covers center
Calibration mark 162.
Step S4, starts the laser module 120 and fluid actuator 140 of particulate matter visualization device 100,
So that the fluid comprising particulate matter passes through from fluid passage 110.
The user control interface shown on step S5, trigger scope obtains testing result to start detection；
Start after detection, image is obtained and processing unit 200 obtains the image of one or more particulate matter, and is led to
Cross and the image of one or more particulate matter of acquisition is handled, calculate the characteristic of particulate matter, aobvious
Show and result of calculation is shown on device.
If necessary to test again, above-mentioned steps S4 is may return to, can if need not test again
With manual-lock laser module 120 and fluid actuator 140, it can also utilize and control in circuit 150
Delay control circuit closes laser module 120 and fluid actuator 140 automatically.
In summary, the technical scheme that the present invention is provided is by a particulate matter visualization device in fluid
Particulate matter carry out laser irradiation and optical amplifier so that the relevant information of the particulate matter in fluid is with particulate
The form output of the scattered light of thing, then obtained by image and processing unit is to the scattered light of particulate matter
Obtained, be imaged and analyzed, obtain the relevant information of particulate matter entrained in the scattered light of particulate matter,
Obtain the characteristic of particulate matter；According to this programme, the inspection to the particulate matter in fluid can be realized whenever and wherever possible
Survey, program clear principle, configuration is reasonable, and cost is low, and weight is small, and operating process is convenient, carrying side
Just, it is especially suitable for the field such as in family, school, office, hospital, workshop, building site, the vehicles
Air in particulate matter detected, also be adapted for entering the particulate matter in various other gases or liquid
Row detection, under the social trend that current environmental attention rate is increasingly improved, the technical side that the present invention is provided
Case has great importance for the reduction of testing cost, whole people's universalness of detection means.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the protection model of the present invention
Enclose.Any modification, equivalent substitution and improvements made within the spirit and principles of the invention etc.,
Comprising within the scope of the present invention.
Claims (15)
1. a kind of particulate matter visualization device, it is characterised in that the device includes：Fluid passage and laser
Module；
Flowed through for fluid the fluid passage；
The laser module is used to produce laser beam so that the laser beam is incident on the fluid and led to
In road on the fluid of designated area, the scattered light of the particulate matter formed in fluid is micro- in fluid to reflect
The characteristic of grain thing.
2. device as claimed in claim 1, it is characterised in that
The stream for laser beam vertical incidence designated area in the fluid passage that the laser module is produced
On body, the direction of propagation and the fluid in the fluid passage of the laser beam that the laser module is produced
Flow direction is mutually perpendicular to.
3. device as claimed in claim 1 or 2, it is characterised in that the device further comprises：Put
Big lens group；
The amplifying lens group includes one or more lens, enters for the scattered light to particulate matter in fluid
Line convergence.
4. system as claimed in claim 3, it is characterised in that the primary optical axis of the amplifying lens group leads to
Cross the center of the designated area, the optical centre of the amplifying lens group and the center of the designated area
The distance between be not more than the amplifying lens group focal length.
5. system as claimed in claim 4, it is characterised in that the primary optical axis of the amplifying lens group with
The flow direction of fluid in the fluid passage is mutually perpendicular to, the primary optical axis of the amplifying lens group and institute
The direction of propagation for stating the laser beam of laser module generation is mutually perpendicular to.
6. device as claimed in claim 1, it is characterised in that the device further comprises：Fluid is caused
Dynamic device；
The fluid actuator is used for the stable flow velocity for maintaining the fluid in the fluid passage.
7. system as claimed in claim 6, it is characterised in that the fluid actuator includes：Air draft
Fan or fluid pump.
8. the system as claimed in claim 1, it is characterised in that the laser light that the laser module is produced
The wavelength of beam is in the wave-length coverage of visible ray near visible.
9. a kind of portable particulate matter detecting system, it is characterised in that the system includes：Such as claim
Particulate matter visualization device any one of 1-8, and, image is obtained and processing unit；
The light of the particulate matter visualization device output is entered to be located in image acquisition and processing unit
Reason.
10. system as claimed in claim 9, it is characterised in that described image is obtained and processing unit
Including：Imaging lens group, imaging sensor, image processing module and display；
The imaging lens group includes one or more lens, for by the particulate matter visualization device
The particulate matter that scattered light is sent in fluid is imaged onto in described image sensor；
Described image sensor has pel array, for the optical signal received to be converted into electric signal,
The image of the particulate matter formed in fluid；
Described image processing module is used to analyze and process the image of the particulate matter in fluid, is flowed
The characteristic of particulate matter in body；
The display be used for show described image sensor formation fluid in particulate matter image and
The characteristic of particulate matter in the fluid that the analysis of described image processing module is obtained.
11. system as claimed in claim 10, it is characterised in that the spy of the particulate matter in the fluid
Property include it is following one or more：The luminous spy of the size of particulate matter in fluid, the particulate matter in fluid
Property, the density of particulate matter in fluid.
12. system as claimed in claim 10, it is characterised in that
The particulate matter visualization device is obtained with described image and processing unit is arranged on two independences and can divided
From shell in, or, the particulate matter visualization device and described image are obtained and processing unit is installed
In a shell；
Exist between the particulate matter visualization device and described image acquisition and processing unit wired or wireless
The communications conduit of mode, or, the particulate matter visualization device is obtained and processing unit with described image
Between be not present wired or wireless way communications conduit.
13. system as claimed in claim 12, it is characterised in that the particulate matter visualization device enters
One step includes：One or more center calibration marks；
The particulate matter visualization device is obtained with described image and processing unit is according to the central campus fiducial mark
Note calibration relative position so that the center that the primary optical axis of the imaging lens group passes through the designated area.
14. system as claimed in claim 13, it is characterised in that
The central campus fiducial mark is designated as the printing opacity being arranged on the housing face-plate of the particulate matter visualization device
Pattern.
15. the system as any one of claim 9-14, it is characterised in that described image is obtained
And processing unit is the mobile terminal with shoot function.
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