CN110036278A - The measuring device and method for micronic dust measurement for motor vehicle - Google Patents
The measuring device and method for micronic dust measurement for motor vehicle Download PDFInfo
- Publication number
- CN110036278A CN110036278A CN201780076868.1A CN201780076868A CN110036278A CN 110036278 A CN110036278 A CN 110036278A CN 201780076868 A CN201780076868 A CN 201780076868A CN 110036278 A CN110036278 A CN 110036278A
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- light source
- laser light
- measuring chamber
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4785—Standardising light scatter apparatus; Standards therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/51—Scattering, i.e. diffuse reflection within a body or fluid inside a container, e.g. in an ampoule
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- Chemical & Material Sciences (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)
- Dispersion Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The measuring device for micronic dust measurement for motor vehicle, it is at least one laser light source, at least one lenticular body for being associated with the laser light source, at least one calibrating installation, at least one measuring chamber and at least one optical receiver assembly for being associated with the laser light source, the present invention importantly proposes, the measuring device has at least two measuring chambers, at least one laser light source is associated at least two measuring chambers, and each measuring chamber has at least one optical receiver assembly, and the optical receiver assembly is used for exploring laser light.In addition, the motor vehicle has measuring device according to the present invention the invention further relates to a kind of method for measuring micronic dust in a motor vehicle.
Description
Technical field
The present invention relates to a kind of measuring devices for micronic dust measurement for motor vehicle, have at least one laser light
Source, at least one lenticular body for being associated with the laser light source, at least one calibrating installation for being associated with the laser light source and
At least one measuring chamber.
Background technique
Measuring device for micronic dust measurement is frequently used for automotive field.It can for example be checked by the measuring device
The ambient air of the motor vehicle whether there is dust particale.In this case, measuring method is used mostly, in institute
It states in measuring method, by the volume of air that laser irradiation is to be checked in measuring chamber, and is received and filled by means of optics
Set the change of detection laser beam.In such devices disadvantageously, it is necessary to for each measuring chamber provide laser light source, lenticular body and
Calibrating installation for the laser light source.Especially, use multiple lasers that the measurement is filled in multiple measurement spaces
The production set becomes with high costs.
Summary of the invention
The task that the present invention is based on is, it is proposed that a kind of measuring device for the type being initially mentioned, wherein cost of implementation
Advantageous manufacture.
Task of the invention is solved by the measuring device of the feature with claim 1.It gives in the dependent claims
Advantageous configuration scheme and expansion scheme out.
In the measuring device for micronic dust measurement for motor vehicle, which has at least one laser light
Source, at least one lenticular body for being associated with the laser light source, at least one calibrating installation for being associated with the laser light source, extremely
A few measuring chamber and at least one optical receiver assembly, essentially propose, the measuring device has according to the present invention
At least two measuring chambers, at least one laser light source is associated at least two measuring chambers, and each measuring chamber has at least one
A optical receiver assembly, the optical receiver assembly are used for exploring laser light.
Different volume of air, such as the ambient enviroment of the motor vehicle can be concurrently checked by using two measuring chambers
The volume of air of the inner space air of the volume of air and motor vehicle of air.Thus, it is possible to for example judge in the motor vehicle
Whether the air exchange between inner space and ambient enviroment is significant.In this case, described two measuring chambers are associated with
One laser light source, the laser light source is using two measuring chambers of laser irradiation to be checked.By only utilizing a laser light source
Laser can concurrently check the volume of air in described two measuring chambers to irradiate two measuring chambers, swash without two
Radiant.In order to detect the laser after laser passes through corresponding volume of air to be checked, each measuring chamber has light
Reception device is learned, the optics receiving device is for detecting the laser.
In a kind of expansion scheme of the invention, the measuring device has lucky two measuring chambers, the measuring device
With at least one mirror body, the mirror body is associated with described two measuring chambers, the mirror body tool there are two mirror surface, the mirror surface with
The mode mutually deviated from arranges, the mirror surface opens an angle, one seamed edge of mirror surface jointly constructs, and by the laser light
The optical path for the laser that source is launched is directed at the seamed edge.In order to divide the laser of laser light source, the measuring device, which has, to be had
The mirror body of two reflectings surface.Preferably, the mirror body is so constructed herein, so that described two mirror surfaces are in a manner of mutually deviating from
It arranges and is respectively provided at least one straight seamed edge.Preferably, described two mirror surfaces are in the straight rib for passing through the mirror surface
The corner Xiang Hui that side is constituted.Two mirror surfaces of the mirror body are arranged to an angle, and open an angle.By the laser light source
The optical path for the laser launched is directed at the seamed edge of the mirror body.Therefore, the laser launched scatters in two directions, so that
The laser is used for the inspection in two measuring chambers.
In a kind of expansion scheme of the invention, the mirror surface opens 90 ° of angles, wherein the mirror surface is outwardly directed.The mirror
The mirror surface of body can be arranged so that the mirror surface be at right angles to each other.Therefore, the mirror body of mirror surface constructs right-angled edge there are two having
Side, wherein the mirror surface is outwardly directed.Laser beam can be directed at this seamed edge, so that the laser beam is in two spaces
It is scattered on direction.The mirror body is arranged between two measuring chambers, and can will be described by the preposition seamed edge of the mirror body
Scattered laser beam is mapped in two measuring chambers, so as to carry out parallel survey in two measuring chambers using a laser light source
Amount.Each mirror surface can be associated with lenticular body, so that the laser beam can be accordingly expanded on the measuring chamber.
In a kind of expansion scheme of the invention, the measuring chamber is arranged side by side, and the mirror body is arranged in the measuring chamber
Between, measuring chamber is associated with a mirror surface respectively, and the optical path of the laser is at least partly stretched between described two measuring chambers
Exhibition.
Described two measuring chambers can be arranged side by side, wherein the mirror body is arranged between described two measuring chambers.It is preferred that
Ground, in this case, the mirror surface of the mirror body are arranged in a manner of respectively for a measuring chamber.It is made of described two mirror surfaces
Seamed edge arranged in a manner of towards the laser beam, the i.e. described laser light source.Preferably, the laser beam or the laser beam
Beam axis and mirror surface open 135 ° of angles.The laser beam is incident on the seamed edge and the mirror surface of the mirror body, by described
The angle of opening between laser beam and the mirror surface respectively scatters to the sub-beam of the laser beam in described two measuring chambers.
The optical path of the laser beam can be arranged between described two measuring chambers, until the laser beam be incident in the mirror body and from
There, which is set out, to be scattered in described two measuring chambers.It is achieved in the compact structure of the measuring device.In the laser light source
Measuring unit and optical receiver assembly are respectively disposed in optical path, it is single that the volume of air to be checked is directed to the measurement
In member, the optical receiver assembly is for detecting the laser beam influenced by the volume of air.In addition, described two mirror surfaces are also matched
Category has lenticular body, and the lenticular body is used to focus or be expanded to the volume of air to be checked for corresponding sub-beam.
In one embodiment of the invention, for the measuring device tool there are two mirror body, the mirror body is respectively provided with mirror
Face, the seamed edge that each mirror surface has at least one straight, and the mirror surface mutually paste at least one straight seamed edge
It leans on.The mirror body can be configured to mirror disk and be respectively provided at least one straight seamed edge.The mirror body can be in this pen
It mutually reclines at straight seamed edge, and therefore arranges angulation, wherein the mirror surface is outwardly directed.It can be incited somebody to action by construction seamed edge
The scattered laser beam is mapped in two measuring chambers.
In a kind of alternative embodiment of the invention, the measuring chamber is arranged side by side, swashing with laser exit wound of bullet
Radiant arranges that two measuring chambers have at least one injection injected for the laser in a manner of towards measuring chamber
Mouthful, the measuring chamber towards the laser light source has exit wound of bullet, and the optical path is guided through two measuring chambers.In this hair
In this bright embodiment, described two measuring chambers are arranged side by side, and the laser of the laser source is successively guided through two rooms.
In this case, two measuring chambers have entry portal, and the laser can pass through the entry portal and inject the measuring chamber.This
Outside, the measuring chamber towards the laser source additionally has exit wound of bullet.It therefore, can be real by being arranged side by side the measuring chamber
Now the laser beam injects the first measuring chamber and can be realized the laser beam and projects from first measuring chamber and laser beam
Inject the second measuring chamber.For this purpose, so arranging the entry portal of described two measuring chambers and being associated with the survey of the laser light source
The exit wound of bullet of room is measured, so that the intersection of opening face.Therefore can using a laser light source check two measuring chambers, i.e. inspection two to
The volume of air of inspection.
In a kind of expansion scheme of the invention, the exit wound of bullet of the measuring chamber towards the laser light source and deviate from the laser light
The entry portal of the measuring chamber in source at least partly intersects.By the entry portals of described two measuring chambers and it is associated with the laser
The intersection of the exit wound of bullet of the measuring chamber of light source enables to the laser beam to pass through two measuring chambers.It therefore can be at two side by side
Two volume of air are checked in the measuring chamber of arrangement.
In a kind of expansion scheme of the invention, at least one reception device is with the side of the beam axis perpendicular to the laser
Formula is arranged at least one measuring chamber, at least one beam splitting devices, and institute are disposed at least one measuring chamber
It states beam splitting devices and is associated at least one reception device.In order to check the volume of air in described two measuring chambers, and
Row arranges the measuring chamber in ground.The laser beam penetrates to be checked in the measuring chamber towards the laser light source first
Then one volume of air invades in second measuring chamber, check the second volume of air in second measuring chamber.In order to
It is checked, the laser beam is injected into the measuring chamber towards the laser light source, and is incident on is arranged in institute herein
It states on the beam splitter in optical path.By the beam splitter by the laser beam splitting, wherein a sub-beam follows defeated
The beam axis of incident beam is further directed in second measuring chamber, and another sub-beam with the input preferably to penetrate
The beam axis mode at right angle of beam is deflected.Deflected laser beam is diverted by the first volume of air to be checked.
It is disposed with optical receiver assembly at the first volume of air rear to be checked in the optical path of the deflected laser beam, is led to
Cross the variation for the laser beam that the optical receiver assembly can be checked across the volume of air.Deflected sub-beam can not
It invades in second measuring chamber.In this case, the second volume of air to be checked can be arranged in the laser of intake
In the beam axis of beam, and accordingly optics can be disposed in the optical path of the laser beam at the volume of air rear and connect
By device.In addition it can also propose, beam splitter can be also arranged in second measuring chamber or for beam deflection
Device (such as mirror), the device for beam deflection by with the laser beam of injection it is at right angle in a manner of deflect it is described swash
Light beam.Second volume of air to be checked and optical receiver assembly can be accordingly arranged in deflected laser beam.
In a kind of expansion scheme of the invention, the measuring chamber is respectively provided at least one reception device, and each
Reception device is all associated with laser attenuation device.The optical receiver assembly (such as can be configured to semiconductor diode, especially
Can be configured to photodiode or homologue) it is associated with a laser attenuation device respectively.Especially, the laser attenuation dress
It sets in the optical path for being arranged in corresponding laser beam at the rear of the reception device.The laser attenuation device can for example pass through
Concave mirror is constructed also by multiple concave mirrors, and the laser beam is incident on the concave mirror and passes through multiple reflections
Decay always the intensity of the laser beam, until the laser beam is no longer scattered back in the measuring chamber.Prevent as a result, the measurement by
The interference of laser beam reflected to not controlled system or scattering.Preferably, each reception device is associated with laser attenuation
Device.
In addition, the motor vehicle has root the invention further relates to a kind of method for measuring micronic dust in a motor vehicle
According to measuring device of the invention, wherein volume of air to be checked is directed at least one measuring chamber, wherein using extremely
The laser irradiation volume of air of a few laser light source, and wherein, the laser is passing through the volume of air to be checked
It is detected later, the present invention is importantly proposed in the method, measurement is concurrently executed at least two measuring chambers, benefit
The measurement is executed with the laser of same laser light source.In order to measure two volume of air, such as the week of the motor vehicle in parallel
The volume of air can be imported into corresponding measuring chamber by collarette border volume of air and inner space volume of air.Pass through
The laser light source is attached to two measuring chambers, and by arranging that detection device, especially optics are examined in each measuring chamber
Device is surveyed, can check volume of air simultaneously.For this purpose, the light of the laser light source is for example guided through two rooms or so logical
The scattering of at least one mirror body is crossed, so that the laser is injected into two measuring chambers.The air being directed in the measuring chamber
Volume is by the laser irradiation, and the laser is detected after passing through the volume of air by optical receiver assembly.It comments
Estimate the measurement result of the optical receiver assembly.
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings shown in embodiment the present invention is further explained.It is shown specifically:
Fig. 1: there are two the measuring devices for the measuring chamber being arranged side by side for tool；
Fig. 2: there are two the measuring devices of beam splitter for tool；
Fig. 3: there are two the measuring devices of measuring chamber and a mirror body for tool.
Specific embodiment
Fig. 1 shows the measuring device 1 with laser light source 2 and measuring chamber 3,4.Laser light source 2 is with the side towards measuring chamber 3
Formula is arranged.The exit wound of bullet 6 that measuring chamber 3 has the entry portal 5 for laser injection and projects for laser.To deviate from laser
The measuring chamber 4 that the mode of light source 2 is arranged has entry portal 7, and the laser beam for having already passed through measuring chamber 3 can pass through the entry portal
It is injected into measuring chamber 4.Lenticular body 8,9 is arranged at entry portal 5 and 7, the lenticular body be used for the laser beam focus or
Person is expanded in volume of air 10,11 to be checked.Measuring chamber 3,4, which has, is guided through volume of air 10,11 for assessing
Laser beam reception device 12,13.Reception device 12,13 is associated with laser attenuation device 14,15, the laser attenuation device
It can for example be constructed by concave mirror and can be used in after laser beam is incident in reception device 12,13 making laser beam
Do not reflect back into corresponding measuring chamber 3,4.Laser light source 2 is associated with calibrating installation 16.Pass through being arranged side by side for measuring chamber 3,4
And the intersection for passing through entry portal 5,7 and exit wound of bullet 6, enables to laser beam to be injected into measuring chamber 3,4 from laser light source 2.
The lenticular body 8 that the laser beam passes through at entry portal 5 is injected into measuring chamber 3, and passes through beam splitting devices 17, described
Laser beam is divided into two sub-beams by the beam splitting devices.Sub-beam continues along the beam axis of the laser beam of injection
It is stretched in measuring chamber 4 across entry portal 7.Sub-beam by with normal deflection and pass through volume of air 10, until the sub-beam
It is incident in reception device 12.Deflected laser beam does not pass through volume of air 11 and is diverted into reception device 13.It is logical
Two volume of air 10,11 can be checked in parallel using laser light source 2 by crossing this arrangement.
Fig. 2 shows tool there are two reception device 14,15 the measuring device according to Fig. 1, the reception device with laser
The optical path of the laser of the injection of light source 2 mode at right angle is arranged.By in the volume of air 10,11 in measuring chamber 3,4
Scattering can detect the laser by reception device 14,15.
Fig. 3 shows another embodiment of the invention.Measuring chamber 3,4 is arranged side by side, wherein the laser of laser light source 2
The optical path of beam at least partly stretches between measuring chamber 3,4.The mirror with mirror surface 20,21 is disposed between measuring chamber 3,4
Body 18,19.Mirror surface 20,21 flare up right angles.On the laser beam focus of laser light source 2 to seamed edge 22, the seamed edge by mirror surface 20,
21 are constituted.By arranging mirror surface 20,21, the laser beam is imported into measuring chamber 3,4.In the laser in measuring chamber 3,4
Be disposed in the optical path of beam volume of air 10,11 and optical receiver assembly 12,13 and laser attenuation device 14 to be checked,
15.In addition, laser light source 2 is associated with calibrating installation 16.By arrangement mirror body 18,19 and pass through the measuring chamber 3,4 that is arranged side by side
Volume of air 10,11 can be concurrently checked merely with laser light source 2.In addition to by the laser beam focus to construction in mirror surface
20, on the seamed edge 22 between 21, can so expand the laser beam, make it possible to preferably completely irradiate mirror surface 20,21 and
Therefore bigger volume of air 10,11 can be checked.
All features mentioned in the foregoing specification and in the claims can be in a manner of optional and only
The feature of vertical claim is combined.Therefore, the disclosure is not limited to spy illustrated or claimed
Sign combination, more precisely, all feature combinations significant within the framework of the invention can be viewed as disclosing.
Claims (10)
1. there is at least one laser light source (2), be associated with for the measuring device (1) for micronic dust measurement of motor vehicle
At least one lenticular body (8) of the laser light source (2), at least one calibrating installation for being associated with the laser light source (2)
(16), at least one measuring chamber (3,4) and at least one optical receiver assembly (12,13),
It is characterized in that,
The measuring device (1) has at least two measuring chambers (3,4),
At least one laser light source (2) is associated at least two measuring chambers (3,4), and
Each measuring chamber (3,4) has at least one optical receiver assembly (12,13), and the optical receiver assembly is sharp for detecting
Light.
2. measuring device according to claim 1, which is characterized in that the measuring device (1) has lucky two measurements
Room (3,4), the measuring device (1) have at least one mirror body, and the mirror body is associated with described two measuring chambers (3,4), institute
Mirror body is stated at least two mirror surfaces (20,21), the mirror surface (20,21) is arranged in a manner of mutually deviating from, the mirror surface
(20,21) angle, mirror surface (20,21) the jointly constructs seamed edge (22) are opened, and launched by the laser light source
The optical path of laser is directed at the seamed edge (22).
3. measuring device according to claim 2, which is characterized in that the mirror surface (20,21) opens 90 ° of angles, wherein institute
It is outwardly directed to state mirror surface (20,21).
4. measuring device according to any one of claim 1 to 3, which is characterized in that the measuring chamber (3,4) is simultaneously arranged
It sets, the mirror body is arranged between the measuring chamber (3,4), and measuring chamber (3,4) is associated with a mirror surface (20,21) respectively, and
The optical path of the laser at least partly stretches between described two measuring chambers (3,4).
5. measuring device according to any one of claim 1 to 4, which is characterized in that the measuring device (1) has two
A mirror body (18,19), the mirror body (18,19) are respectively provided with mirror surface (20,21), and each mirror surface (20,21) has at least one
A straight seamed edge, and the mirror surface mutually reclines at least one straight seamed edge.
6. measuring device according to claim 1, which is characterized in that the measuring chamber is arranged side by side, and there is laser to project
The laser light source (2) of mouth arranges that two measuring chambers (3,4) have penetrates for the laser in a manner of towards measuring chamber (3)
At least one entry portal (5,7) entered, the measuring chamber (3) towards the laser light source have exit wound of bullet, and the optical path quilt
It is directed across two measuring chambers (3,4).
7. measuring device according to claim 6, which is characterized in that the measuring chamber towards the laser light source (2)
(3) entry portal (5,7) of exit wound of bullet (6) and the measuring chamber (4) away from the laser light source (2) at least partly intersects.
8. the measuring device according to any one of claim 6 or 7, which is characterized in that at least one described reception dress
(12,13) are set to be arranged in a manner of the beam axis perpendicular to the laser at least one corresponding measuring chamber (3,4),
At least one beam splitting devices (17), and the beam splitting devices (17) are disposed at least one measuring chamber (3,4)
It is associated at least one reception device (12,13).
9. measuring device according to any one of claim 1 to 8, which is characterized in that the measuring chamber (3,4) has respectively
There is at least one reception device (12,13), and each reception device (12,13) is associated with laser attenuation device (15).
10. the method for measuring micronic dust in a motor vehicle, the motor vehicle have according to any one of the claims
The measuring device, wherein volume of air to be checked is directed at least one measuring chamber (3,4), wherein using extremely
The laser irradiation volume of air (10,11) of a few laser light source (2), and wherein, the laser is across described to be checked
Volume of air (10,11) after be detected,
It is characterized in that,
Measurement is concurrently executed at least two measuring chambers (3,4), and executes institute using the laser of same laser light source (2)
State measurement.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016124068.0A DE102016124068A1 (en) | 2016-12-12 | 2016-12-12 | Measuring device and method for fine dust measurement for a motor vehicle |
| DE102016124068.0 | 2016-12-12 | ||
| PCT/EP2017/081613 WO2018108650A1 (en) | 2016-12-12 | 2017-12-06 | Measuring device and method for fine dust measuring for a motor vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110036278A true CN110036278A (en) | 2019-07-19 |
| CN110036278B CN110036278B (en) | 2022-05-03 |
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ID=61148160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780076868.1A Active CN110036278B (en) | 2016-12-12 | 2017-12-06 | Measuring device and method for measuring motes for motor vehicles |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN110036278B (en) |
| DE (1) | DE102016124068A1 (en) |
| WO (1) | WO2018108650A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10776643B1 (en) * | 2019-08-28 | 2020-09-15 | Robert Bosch Gmbh | Vehicular airborne particulate matter detection system |
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| CN110036278B (en) | 2022-05-03 |
| DE102016124068A1 (en) | 2018-06-14 |
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