CN201628805U - Calibration system for atmospheric visibility meter - Google Patents
Calibration system for atmospheric visibility meter Download PDFInfo
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- CN201628805U CN201628805U CN2009203121746U CN200920312174U CN201628805U CN 201628805 U CN201628805 U CN 201628805U CN 2009203121746 U CN2009203121746 U CN 2009203121746U CN 200920312174 U CN200920312174 U CN 200920312174U CN 201628805 U CN201628805 U CN 201628805U
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- visibility meter
- clean
- optical attenuation
- transmitting terminal
- atmosphere
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Abstract
The utility model aims at solving the technical problem of providing a system capable of quickly, conveniently and accurately calibrating the visibility meter. The calibration system for the atmospheric visibility meter comprises an optical attenuation lens with gradual change ratio, wherein the optical attenuation lens with gradual change ratio is arranged on an optical channel between a transmitting terminal and a receiving terminal of the visibility meter, and the optical attenuation lens with gradual change ratio, the transmitting terminal and the receiving terminal are arranged in the clean airspace. The calibration system for the atmospheric visibility meter can take the influences of environment, temperature, weather change, and the like fully into account, and can simply, conveniently and quickly calibrate the visibility meter; generally speaking, only 4 to 8 hours are needed by the system for calibrating one visibility meter; and the calibration system for the atmospheric visibility meter has the advantages of low energy consumption and convenient and quick operation and control, causes no environmental pollution, overcomes the difficulties caused by humans, weather, environment, temperature, humidity, time and other factors, and can scientifically, objectively and quickly calibrate various types of visibility meters.
Description
Technical field
The utility model relates to a kind of scaling system of atmosphere visibility meter.
Background technology
Since the 1980s, fast development along with photoelectron technology, promoted the development of weather monitorings such as automatic meteorology, traffic meteorology, aviation, the hydrology, forest, airport, corresponding monitoring system and product also arise at the historic moment, and various visiometers provide practical application in a large number.
Development at present and the visiometer of producing mainly contain transmission-type, scatter-type, image pick-up type, laser radar etc.To so far, that the visiometer of known domestic and international development and production does not also have is simple and direct, scaling system or device easily.Generally adopt in physical environment at present, go to operate the distance of several measured points by the people, and be divided into several ladders, as: 1000 meters, 3000 meters, 5000m etc., remove to demarcate earlier a machine tool in this way, again by this machine tool go to demarcate next machine, more next machine,,,,, this just usually said " TRANSFER METHOD ".But the error that TRANSFER METHOD is brought is many-sided, as: people's subjectivity; The optical characteristics of target itself; The directivity of target range; The Changes in weather reason; Airborne temperature, humidity, wind, cigarette, dirt etc., and there are shortcomings such as the calibration time is long, general spended time in ten days was, these cause great difficulty all for the calibration of visiometer, the visiometer of being demarcated in this manner, the error of its degree of accuracy well imagines that its confidence level also must be to have a greatly reduced quality, thereby causes very big trouble for development and production visiometer.
The utility model content
Technical problem to be solved in the utility model provides a kind of system quick and easy and that accurately atmosphere visibility meter is calibrated.
The technical scheme that the utility model technical solution problem is adopted is: the scaling system of atmosphere visibility meter, comprise the fade rate optical attenuation camera lens that simulation atmosphere light decay rate is made, described fade rate optical attenuation camera lens places on the transmitting terminal and the path channels between the receiving end of visiometer, and described fade rate optical attenuation camera lens, transmitting terminal and receiving end place clean airspace.
Further, the cleanliness factor of the airspace of described cleaning is more than 10,000 grades.
Further, the airspace of described cleaning is the clean workplace of carrying out the cleaningization processing with clean degree of purification treatment facility.
Further, the airspace of described cleaning comprises 2 clean rooms and closed conduit, described transmitting terminal and receiving end place respectively in 2 clean rooms, described closed conduit communicates and airtight the connection with 2 clean rooms, and described 2 clean rooms and closed conduit adopt clean degree of purification treatment facility to carry out the cleaning processing.
The beneficial effects of the utility model are: the utility model is according to the basic optical principle and Bouguer (ripple lattice) the delustring law of visibility, fully take into account environment, temperature, many influences such as Changes in weather, can be easy, quickly visiometer is calibrated, adopt visiometer of system calibration of the present utility model, generally only need 4-8 hour, system of the present utility model provides productive rate to the development and the production of visiometer, quality, the strong guarantee of precision, system energy consumption of the present utility model is little, non-environmental-pollution, operation, it is convenient to control, artificial and weather have been stopped, environment, temperature, humidity, all multifactor difficulties that calibration is brought to visiometer such as time, the energy science, objective, quickly various types of visiometers are made demarcation.
Description of drawings
Fig. 1 is the synoptic diagram that adopts the transmission measurement extinction coefficient.
Fig. 2 is a synoptic diagram of the present utility model.
Fig. 3 is the synoptic diagram of another kind of form of the present utility model.
Embodiment
In atmosphere, the decay of light mainly is to be caused by scattering and absorption.At visible light wave range, absorption can be ignored, and is to constitute the principal element that visibility reduces via the scattering phenomenon that particle in the atmosphere produces, and therefore extinction coefficient and scattering coefficient can be considered equal on engineering.
The ultimate principle of measuring visibility goes out extinction coefficient δ by apparatus measures exactly, and the r=-ln ξ/δ that derives according to KoschM:eder (Coase is very graceful) law calculates atmospheric visibility and meteorological optical range again.
Bouguer delustring law is:
I＝I
oexp(-δL) (1)
Wherein: δ is an extinction coefficient; I
oBe incident intensity; I is a transmitted intensity; L is an optical path length.
The synoptic diagram that adopts the transmission measurement extinction coefficient as shown in Figure 1, the variation of the transmitance that takes place when being based on transmission in the atmosphere of different qualities is by the emission light I of measurement light source 1
oCalculate extinction coefficient δ through the I value that light path L decay back receiver 2 receives.
Therefore above-mentioned (1) formula can be:
δ＝-lnI/I
o/L (2)
The extinction coefficient δ of scatter-type visiometer is by the scattering of big gasoloid and molecule and absorption and the decay of the light that causes, so δ equals scattering coefficient b and absorption coefficient C sum:
δ＝b+c (3)
Generally, atmosphere much smaller than to scattering of light, therefore, when light path has in limited time, can be ignored the absorption of atmosphere to light to the absorption of light.So scattering of light coefficient b is estimated the extinction coefficient δ of atmosphere by measuring the limited bulk air.So, when C=0, δ=b, just can apply mechanically above-mentioned (2) formula δ=-lnI/I
o/ L.
Scaling system of the present utility model must use the fade rate optical attenuation camera lens 4 of a cover simulation atmosphere light decay rate, and this fade rate optical attenuation camera lens 4 can be simulated under the different atmospheric conditions decay of scattering of light or absorption is made.When visiometer is calibrated, above-mentioned fade rate optical attenuation camera lens 4 is placed on the transmitting terminal 3 and the path channels between the receiving end 6 of the visiometer that needs calibration, change different fade rate optical attenuation camera lenses 4 and debug the visiometer calibration coefficient, to conform to visibility in the real atmosphere environment.The transmitting terminal 3 of above-mentioned visiometer all is arranged in the clean workplace 5, as shown in Figure 2 with receiving end 6 and path channels.
Above-mentioned transmitting terminal 3 can place on the test desk at two ends with receiving end 6, above-mentioned fade rate optical attenuation camera lens 4 can be simulated atmosphere light decay rate division system and be made a set of shots, also can be according to dissimilar visiometers, make different fade rate optical attenuation camera lenses, fade rate optical attenuation camera lens 4 also can require to select different optical materials according to optics.
Above-mentioned clean workplace 5 can adopt common clean room, generally adopts about 10 square metres to get final product.
Before visiometer is calibrated, earlier clean workplace 5 is carried out the cleaning processing with clean degree of purification treatment facility, reach the test request of calibration environment when clean workplace 5 after, the visiometer of needs calibration is calibrated, the cleanliness factor of above-mentioned clean workplace 5 needs more than 10,000 grades again.
Calibration to visiometer is measured, and key is to measure the attenuation rate of parallel beam by atmosphere sampling thickness L.The attenuation rate of light intensity is more little in the high more air ambient of cleanliness factor, and the measured value of its visibility is big more.We can reach the cleanliness factor of system some degree, so that F=F
o(F is the luminous power of receiving end; F
oLuminous power for transmitting terminal).This system just can provide the calibration of the visiometer of routine to measure fully, reliably like this.
As long as the utility model places clean airspace, add one group of fade rate optical attenuation camera lens 4 and just can realize the purpose of this utility model.The utility model also can place transmitting terminal 3 and receiving end 6 respectively in 2 clean rooms 8, path channels adopts one section closed conduit 7, communicate and airtight the connection with 2 clean rooms 8, as shown in Figure 3, adopt clean degree of purification treatment facility to carry out the cleaning processing 2 clean rooms 8 and closed conduit 7 before the calibration, the visiometer of needs calibration is calibrated again, such structural design can be saved the space more, because these 2 clean rooms 8 can be very little, as long as transmitting terminal 3 and receiving end 6 can be put down.
Claims (4)
1. the scaling system of atmosphere visibility meter, it is characterized in that: comprise the fade rate optical attenuation camera lens (4) that simulation atmosphere light decay rate is made, described fade rate optical attenuation camera lens (4) places on the transmitting terminal (3) and the path channels between the receiving end (6) of visiometer, and described fade rate optical attenuation camera lens (4), transmitting terminal (3) and receiving end (6) place clean airspace.
2. the scaling system of atmosphere visibility meter as claimed in claim 1, it is characterized in that: the cleanliness factor of the airspace of described cleaning is more than 10,000 grades.
3. the scaling system of atmosphere visibility meter as claimed in claim 1, it is characterized in that: the airspace of described cleaning is the clean workplace (5) of carrying out the cleaningization processing with clean degree of purification treatment facility.
4. the scaling system of atmosphere visibility meter as claimed in claim 1, it is characterized in that: the airspace of described cleaning comprises 2 clean rooms (8) and closed conduit (7), described transmitting terminal (3) places respectively in 2 clean rooms (8) with receiving end (6), described closed conduit (7) communicates and airtight the connection with 2 clean rooms (8), and described 2 clean rooms (8) and closed conduit (7) adopt clean degree of purification treatment facility to carry out the cleaning processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203121746U CN201628805U (en) | 2009-08-31 | 2009-10-10 | Calibration system for atmospheric visibility meter |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920309304 | 2009-08-31 | ||
| CN200920309304.0 | 2009-08-31 | ||
| CN2009203121746U CN201628805U (en) | 2009-08-31 | 2009-10-10 | Calibration system for atmospheric visibility meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201628805U true CN201628805U (en) | 2010-11-10 |
Family
ID=41789276
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910308141A Pending CN101661155A (en) | 2009-08-31 | 2009-10-09 | Calibration system of atmosphere visibility meter and calibration method thereof |
| CN2009203121746U Expired - Fee Related CN201628805U (en) | 2009-08-31 | 2009-10-10 | Calibration system for atmospheric visibility meter |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910308141A Pending CN101661155A (en) | 2009-08-31 | 2009-10-09 | Calibration system of atmosphere visibility meter and calibration method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN101661155A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879359B (en) * | 2012-09-26 | 2015-03-25 | 中国科学院合肥物质科学研究院 | Atmospheric visibility measuring system |
| CN104198443B (en) * | 2014-09-02 | 2016-08-24 | 四川鼎林信息技术有限公司 | The visibility Calibration System Calibration Method to product machine |
| CN104237173A (en) * | 2014-10-16 | 2014-12-24 | 四川鼎林信息技术有限公司 | Transmission type visibility meter capable of extending length of base line |
| CN104713852A (en) * | 2015-02-05 | 2015-06-17 | 中国民航大学 | Controllable visibility atmosphere simulation system |
| CN104713854B (en) * | 2015-02-05 | 2020-10-09 | 中国民航大学 | Movable visibility calibration system and calibration method |
| CN104713853B (en) * | 2015-02-05 | 2020-05-01 | 中国民航大学 | Variable-strength movable visibility calibration system and calibration method |
| CN104777527B (en) * | 2015-04-20 | 2018-09-28 | 深圳大舜激光技术有限公司 | A kind of visibility caliberating device |
| CN112345497B (en) * | 2020-11-24 | 2024-03-15 | 河南省计量测试科学研究院 | Atmospheric visibility meter calibration system and calibration method thereof |
-
2009
- 2009-10-09 CN CN200910308141A patent/CN101661155A/en active Pending
- 2009-10-10 CN CN2009203121746U patent/CN201628805U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101661155A (en) | 2010-03-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20131010 |