CN208847654U - A kind of range switching of transmission-type smoke meter and self-checking device - Google Patents
A kind of range switching of transmission-type smoke meter and self-checking device Download PDFInfo
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- CN208847654U CN208847654U CN201821334530.XU CN201821334530U CN208847654U CN 208847654 U CN208847654 U CN 208847654U CN 201821334530 U CN201821334530 U CN 201821334530U CN 208847654 U CN208847654 U CN 208847654U
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- eyeglass
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Abstract
The utility model discloses a kind of switching of the range of transmission-type smoke meter and self-checking devices, the right side for collimating camera lens is equipped with optical channel, light splitting eyeglass is installed in the middle part of optical channel, the upper left side of light splitting eyeglass is equipped with turntable, the lower section of turntable is embedded with biconvex lens, the right side of turntable is embedded with optical attenuation eyeglass, optical fiber is inserted with above optical attenuation eyeglass, the right end of optical channel is equipped with window lens, the right side of window lens is equipped with measuring cell, the right end of optical fiber is equipped with calibration camera lens, the lower left of calibration camera lens is equipped with measurement camera lens, photelectric receiver is installed on the right side of measurement camera lens, the lower left of photelectric receiver is equipped with reference camera lens, reference photelectric receiver is installed on the right side of reference camera lens, the back lower place of turntable is equipped with stepper motor.The utility model can effectively realize range switching of the smokemetor under different working conditions；Automatic calibration can also be realized by reference according to the operating condition of equipment in continuous monitoring, improve the measurement accuracy of system comprehensively.
Description
Technical field
The utility model relates to range switching and self-checking device field, specially a kind of ranges of transmission-type smoke meter
Switching and self-checking device.
Background technique
Smokemetor is the instrument for measuring smoke intensity in automotive exhaust.It is mainly used for the measurement of diesel engine discharge exhaust gas.With
Piston aspiration pump extracts the exhaust gas of a constant volume from Diesel Engine Exhaust Pipe in required time, and is run through certain face
Long-pending filter paper, the flue dust grain in exhaust are trapped on filter paper and keep filter paper dye black.With the extinction of photoelectric measuring device measurement filter paper
Rate, the absorptance indicate the size of smoke intensity in exhaust.Smokemetor is mainly by piston aspiration pump, sampler and photoelectric measuring device
Composition.Measurement is typically repeated 3 times, acquires arithmetic mean of instantaneous value as the smoke intensity value measured.The numberical range of smoke intensity value is 0-10, empty
The smoke intensity of white filter paper is zero, and the smoke intensity of completely black filter paper is 10.By there are two types of apparatus measures principles point, one is filter paper types, another
Kind is transmission-type.The harmful components contained in diesel engine truck exhaust not only seriously polluted atmosphere, be degrading environment, and direct prestige
Coerce the health of people.Therefore, detection is carried out to emission of diesel engine to have a very important significance to reduce pollution.At present
The range of existing transmission-type smoke meter is fixed on the market, cannot be calibrated automatically according to the operating condition of equipment, is surveyed
It measures low.
Utility model content
The technical issues of the utility model is solved is that the range for providing a kind of transmission-type smoke meter switches and automatic school
Standard apparatus can switch in the range under different working conditions, and automatic calibration can also be realized by reference, improves the survey of system
Accuracy of measurement.
The technical problem solved by the utility model is implemented by the following technical solutions: a kind of amount of transmission-type smoke meter
Journey switching and self-checking device, including laser, collimation camera lens, optical channel, light splitting eyeglass, turntable, biconvex lens, optical attenuation
Eyeglass, optical fiber, window lens, measuring cell, calibration camera lens, measurement camera lens, reference camera lens, photelectric receiver, reference opto-electronic receiver
Device and stepper motor, the collimation camera lens is equipped on the right side of the laser, and the right side of the collimation camera lens is equipped with the light
Channel, the light splitting eyeglass is equipped in the middle part of the optical channel, and the upper left side of the light splitting eyeglass is equipped with the turntable, institute
The lower section of turntable is stated embedded with the biconvex lens, the right side of the turntable is embedded with the optical attenuation eyeglass, the optical attenuation eyeglass
Top be inserted with the optical fiber, the right end of the optical channel is equipped with the window lens, and the right side of the window lens is equipped with
The measuring cell, the right end of the optical fiber are equipped with the calibration camera lens, and the lower left of the calibration camera lens is equipped with the survey
Camera lens is measured, the photelectric receiver is installed, the lower left installation of the photelectric receiver is on the right side of the measurement camera lens
Reference camera lens is stated, the reference photelectric receiver, the calibration camera lens, the measurement mirror are installed on the right side of the reference camera lens
The inside of head and the reference camera lens is embedded with the biconvex lens, and the back lower place of the turntable is equipped with the stepper motor.
In the utility model, the optical channel is located at the lower section of the turntable, and the light splitting eyeglass tilting is mounted on institute
State the middle part of optical channel.
In the utility model, the turntable is disc, and the upper surface of the turntable is equipped with a circle circular insertion grooves, described
Optical attenuation eyeglass is in circular insertion grooves.
In the utility model, the biconvex lens shares four pieces, and the optical attenuation eyeglass is located at the left side biconvex lens
Surface.
In the utility model, the measuring cell is tetragonal body structure, and the center of the measuring cell is opened equipped with cylinder
Mouthful.
In the utility model, the measurement camera lens is located at the top of the reference camera lens, and the photelectric receiver is located at institute
State the top of reference photelectric receiver.
The utility model has the beneficial effects that
1. range switching of the smokemetor under different working conditions can be realized effectively；
2. can realize automatic calibration by reference according to the operating condition of equipment in continuous monitoring, system is improved comprehensively
Measurement accuracy.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the utility model；
Fig. 2 is the backsight structural representation of the utility model.
In figure: 1, laser；2, camera lens is collimated；3, optical channel；4, it is divided eyeglass；5, power supply；6, lenticular
Mirror；7, optical attenuation eyeglass；8, optical fiber；9, window lens；10, measuring cell；11, camera lens is calibrated；12, camera lens is measured；13, reference mirror
Head；14, photelectric receiver；15, reference photelectric receiver；16, stepper motor.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is further described.
As depicted in figs. 1 and 2, a kind of range switching of transmission-type smoke meter and self-checking device, including laser 1,
Collimate camera lens 2, optical channel 3, light splitting eyeglass 4, turntable 5, biconvex lens 6, optical attenuation eyeglass 7, optical fiber 8, window lens 9, measurement
Pond 10, calibration camera lens 11, measurement camera lens 12, reference camera lens 13, photelectric receiver 14, reference photelectric receiver 15 and stepping electricity
Machine 16, the right side of the laser 1 are equipped with the collimation camera lens 2, and the right side of the collimation camera lens 2 is equipped with the optical channel 3,
The middle part of the optical channel 3 is equipped with the light splitting eyeglass 4, and the upper left side of the light splitting eyeglass 4 is equipped with the turntable 5, institute
The lower section of turntable 5 is stated embedded with the biconvex lens 6, the right side of the turntable 5 is embedded with the optical attenuation eyeglass 7, the optical attenuation
The top of eyeglass 7 is inserted with the optical fiber 8, and the right end of the optical channel 3 is equipped with the window lens 9, the window lens 9
Right side is equipped with the measuring cell 10, and the right end of the optical fiber 8 is equipped with the calibration camera lens 11, the lower-left of the calibration camera lens 11
Side is equipped with the measurement camera lens 12, and the right side of the measurement camera lens 12 is equipped with the photelectric receiver 14, and the photoelectricity connects
The lower left for receiving device 14 is equipped with the reference camera lens 13, and the right side of the reference camera lens 13 is equipped with the reference opto-electronic receiver
The inside of device 15, the calibration camera lens 11, the measurement camera lens 12 and the reference camera lens 13 is embedded with the biconvex lens 6,
The back lower place of the turntable 5 is equipped with the stepper motor 16.The optical channel 3 is located at the lower section of the turntable 5, the light splitting
4 tilting of eyeglass is mounted on the middle part of the optical channel 3.The turntable 5 is disc, and the upper surface of the turntable 5 is equipped with one
Circular insertion grooves are enclosed, the optical attenuation eyeglass 7 is in circular insertion grooves.The biconvex lens 6 shares four pieces, the optical attenuation
Eyeglass 7 is located at the surface of the left side biconvex lens 6.The measuring cell 10 is tetragonal body structure, in the measuring cell 10
Heart position is equipped with cylinder open.The measurement camera lens 12 is located at the top of the reference camera lens 13, the photelectric receiver 14
Positioned at the top of the reference photelectric receiver 15.
Working principle: the light issued by transmitting light source laser 1, by entering optical channel 3 after collimation camera lens 2 and beating
On the light splitting eyeglass 4 being fitted into, the light reflected through light splitting eyeglass 4 enters the calibrated channel without flue gas, through lenticular
Mirror 6 enters the optical attenuation eyeglass 7 for the different ratios being mounted on turntable 5, and turntable 5 is controlled by stepper motor 16, by optical attenuation mirror
The light of piece outgoing enters calibration camera lens 11 through optical fiber 8, finally gets on photelectric receiver 14, and transmitted by light splitting eyeglass 4
Light enters measuring cell 10 through window lens 9, is refracted into measurement camera lens 12 via dust in measuring cell, finally also gets to photoelectricity
On receiver 14, realizes measurement and calibrate a shared receiver, and the light a part transmitted by light splitting eyeglass 4 is by measuring cell
It is directly entered reference camera lens 13 after 10, finally gets on reference photocell receiver 15, so that equipment be made to monitor different operating conditions
Under the conditions of different dust concentrations when according to reference signal control stepper motor switch different optical attenuation pieces to complete the amount of equipment
Journey switching, controls the automatic calibration that stepper motor completes equipment according to reference signal equally in continuous monitoring process.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above, current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention, the utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (6)
1. a kind of range of transmission-type smoke meter switches and self-checking device, it is characterized in that: including laser (1), collimating mirror
Head (2), optical channel (3), light splitting eyeglass (4), turntable (5), biconvex lens (6), optical attenuation eyeglass (7), optical fiber (8), window mirror
Piece (9), measuring cell (10), calibration camera lens (11), measurement camera lens (12), reference camera lens (13), photelectric receiver (14), reference light
Electric receiver (15) and stepper motor (16) are equipped with the collimation camera lens (2), the collimation on the right side of the laser (1)
The right side of camera lens (2) is equipped with the optical channel (3), is equipped with the light splitting eyeglass (4) in the middle part of the optical channel (3), described
The upper left side of light splitting eyeglass (4) is equipped with the turntable (5), and the lower section of the turntable (5) is embedded with the biconvex lens (6), institute
The right side for stating turntable (5) is embedded with the optical attenuation eyeglass (7), is inserted with the optical fiber (8) above the optical attenuation eyeglass (7),
The right end of the optical channel (3) is equipped with the window lens (9), and the right side of the window lens (9) is equipped with the measuring cell
(10), the right end of the optical fiber (8) is equipped with the calibration camera lens (11), and the lower left installation of calibration camera lens (11) is
Measurement camera lens (12) is stated, the photelectric receiver (14), the photelectric receiver are installed on the right side of the measurement camera lens (12)
(14) lower left is equipped with the reference camera lens (13), is equipped with the reference photoelectricity on the right side of the reference camera lens (13) and connects
It receives device (15), the inside of calibration camera lens (11), measurement camera lens (12) and the reference camera lens (13) is embedded with described
The back lower place of biconvex lens (6), the turntable (5) is equipped with the stepper motor (16).
2. a kind of range of transmission-type smoke meter according to claim 1 switches and self-checking device, it is characterized in that: institute
The lower section that optical channel (3) are located at the turntable (5) is stated, light splitting eyeglass (4) tilting is mounted in the optical channel (3)
Portion.
3. a kind of range of transmission-type smoke meter according to claim 1 switches and self-checking device, it is characterized in that: institute
Stating turntable (5) is disc, and the upper surface of the turntable (5) is equipped with a circle circular insertion grooves, and the optical attenuation eyeglass (7) is embedded in
In circular insertion grooves.
4. a kind of range of transmission-type smoke meter according to claim 1 switches and self-checking device, it is characterized in that: institute
It states biconvex lens (6) and shares four pieces, the optical attenuation eyeglass (7) is located at the surface of the left side biconvex lens (6).
5. a kind of range of transmission-type smoke meter according to claim 1 switches and self-checking device, it is characterized in that: institute
Stating measuring cell (10) is tetragonal body structure, and the center of the measuring cell (10) is equipped with cylinder open.
6. a kind of range of transmission-type smoke meter according to claim 1 switches and self-checking device, it is characterized in that: institute
The top that measurement camera lens (12) is located at the reference camera lens (13) is stated, the photelectric receiver (14) is located at the reference photoelectricity and connects
Receive the top of device (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821334530.XU CN208847654U (en) | 2018-08-19 | 2018-08-19 | A kind of range switching of transmission-type smoke meter and self-checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821334530.XU CN208847654U (en) | 2018-08-19 | 2018-08-19 | A kind of range switching of transmission-type smoke meter and self-checking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208847654U true CN208847654U (en) | 2019-05-10 |
Family
ID=66356172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821334530.XU Active CN208847654U (en) | 2018-08-19 | 2018-08-19 | A kind of range switching of transmission-type smoke meter and self-checking device |
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| CN (1) | CN208847654U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111562204A (en) * | 2020-03-03 | 2020-08-21 | 河南省计量科学研究院 | Calibration method of light-tight smoke meter optical filter |
| CN113048891A (en) * | 2021-03-26 | 2021-06-29 | 佛山翰创检测仪器有限公司 | Effective length measuring device of transmission-type smoke meter light channel |
-
2018
- 2018-08-19 CN CN201821334530.XU patent/CN208847654U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111562204A (en) * | 2020-03-03 | 2020-08-21 | 河南省计量科学研究院 | Calibration method of light-tight smoke meter optical filter |
| CN113048891A (en) * | 2021-03-26 | 2021-06-29 | 佛山翰创检测仪器有限公司 | Effective length measuring device of transmission-type smoke meter light channel |
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