CN107356565A - Portable visibility transilluminator - Google Patents
Portable visibility transilluminator Download PDFInfo
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- CN107356565A CN107356565A CN201710768067.3A CN201710768067A CN107356565A CN 107356565 A CN107356565 A CN 107356565A CN 201710768067 A CN201710768067 A CN 201710768067A CN 107356565 A CN107356565 A CN 107356565A
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- 230000003287 optical effect Effects 0.000 claims abstract description 42
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 239000013307 optical fiber Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- 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
- G01N21/59—Transmissivity
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a kind of portable visibility transilluminator.The air inlet (15) connected with air pump (14) or gas outlet (16) are equipped with its closed box (17)；Light source is the laser (1) of output visible ray；Optical antenna in casing (17) receives integrating sphere (11) for light-intensity test integrating sphere (3), collimation microscope group (5), the speculum (7), optical filter (10) and light intensity positioned at light path echo area (8) both ends being equipped with successively on light source optical path, and light intensity detector (4) and photodetector (12) are equipped with respectively on the inwall of two integrating spheres therein；Observing and controlling part (13) is made up of computer and control, acquisition module, and it is electrically connected with air pump (14), laser (1), light intensity detector (4) and photodetector (12) respectively.Its small volume, portable and working service are convenient, can be widely used in the accurate measurement to atmospheric visibility.
Description
Technical field
The present invention relates to a kind of visibility transilluminator, especially a kind of portable visibility transilluminator.
Background technology
Atmospheric visibility initially using the visual observation estimated distance of people as definition meteorological parameter, be in air molecule and
The expression directly perceived of scattering and absorption of the particle to light.Visibility is defined as meteorological optical range (MOR) in meteorology, initially with people
Based on work observation, as the development of photoelectric technology has progressively developed into the photoelectric measurement equipment of automation, meteorological and traffic at present
The most-often used atmospheric visibility measuring instrument of department is forward scattering visibility meter and transmission-type visibility meter.Forward scattering energy
View degree instrument designs according to light scattering principle, fixed spot measurement, by the scattering system for measuring air a direction sample region air
Number calculates atmospheric visibility value；The cheap, easy for installation of this equipment, maintenance are simple, but the precision measured is not high, simultaneously
Mobility is poor.Transmission-type visibility measurement is based on the theoretical directly acquisition atmospheric extinction system of the delustring that light transmits in an atmosphere
Number, comprising absorption coefficient and scattering coefficient sum, and then calculates atmospheric visibility value, therefore the degree of accuracy measured is higher.In the recent period,
People are made that unremitting effort, such as entitled " one kind is real to obtain the transmission-type visibility measuring instrument compared with high measurement accuracy
With the development of type atmospheric transmission visibility meter ",《Photoelectric project》The 2nd the 144-150 pages of phase of volume 38, the text of 2 months 2011
Chapter.The atmospheric transmission visibility meter referred in this article mainly includes the optical antenna in casing, light source and its light path, Yi Jiyu
Light source and the observing and controlling part of optical antenna electrical connection；Wherein, light source is the LED to emit white light, optical antenna by light transmitting antenna and
Light receiver aerial forms, and smooth transmitting antenna therein is optical lens, and light receiver aerial is the optical lens of concatenation, bandpass filter
Mirror and photodetector, and follow-up amplifier, wave filter, detector and A/D converter etc., observing and controlling part by computer and
The control that is connected electrically, communication module composition, light modulating signal source of the light source control module therein for electrical connection, optical drive
Circuit and optical power control circuit.When measuring visibility, the light signal of stable light intensity is sent through the big qi leel in optical antenna
After the decay of son and particle, electric signal is converted into by light receiver aerial, being sent to computer through communication module draws air
Visibility value.Though this atmospheric transmission visibility meter has higher accuracy of measurement, but also there is weak point, it is first
First, to ensure the degree of accuracy of measurement, the installation baseline between its light transmitting antenna and light receiver aerial need to be more than 30 meters, and some is very
To rice up to a hundred are needed, so long installation baseline not only land occupation resource also greatly increases the difficulty that light path is aligned, led
Cause it at present only in the place application high to visibility measurement required precision such as airport；Secondly, immovability, the transmitting of instrument
End and receiving terminal all must be arranged on huge pedestal on, once installation just it is not easily shifted, it is pinpointed measure and can see
Degree；Finally, after installing or safeguard, be both needed to compensate it calibration and light path alignment calibration, add installation and use into
This.
The content of the invention
The technical problem to be solved in the present invention is overcomes weak point of the prior art, there is provided a kind of small volume, portable
With the convenient portable visibility transilluminator of working service.
To solve the technical problem of the present invention, used technical scheme is, portable visibility transilluminator include casing,
Optical antenna on light source and its light path, and the observing and controlling part electrically connected with light source and optical antenna, particularly：
The casing is closed, and air inlet and gas outlet, the air inlet or outlet are equipped with the closed casing
Mouth connects with air pump；
The light source is the laser of output visible ray；
The optical antenna is placed in casing, and the optical antenna being placed in casing is what is be equipped with successively on light source optical path
Light-intensity test integrating sphere, collimation microscope group, speculum, optical filter and light intensity positioned at light path echo area both ends receive integrating sphere, its
In, the incident optical port and outgoing optical port of light-intensity test integrating sphere are coaxial, and itself and light intensity are received and put respectively on the inwall of integrating sphere
There are light intensity detector and photodetector；
The observing and controlling part is made up of computer and control, acquisition module, wherein, the output end of computer respectively with air pump
With electrically connected through control module with the control terminal of laser, input distinguishes acquired module and light intensity detector and photodetection
The output end electrical connection of device.
Further improvement as portable visibility transilluminator：
Preferably, the output wavelength of laser is 525nm.
Preferably, the single length of reflected light path is 100cm in light path echo area.
Preferably, speculum is more than 29, and the upper and lower both sides at its light path echo area both ends that are placed in；It is beneficial into one
Step ground reduces volume.
Preferably, the light input end of optical filter is serially connected with vacuum tube；For accurately compensating for light path, measured in favor of improving
Precision.
Preferably, connected between laser and light-intensity test integrating sphere through optical fiber；It is easily installed debugging.
Preferably, light modulating signal generator, light of the control module electrically connected with the control terminal of laser for electrical connection
Source drive and light intensity control.
Preferably, it is the preceding storing that concatenates with the acquisition module of the output end of light intensity detector and photodetector electrical connection
Big device and data acquisition unit.
It is relative to the beneficial effect of prior art：
After such structure, both due to multi-disc speculum to be placed in the both ends of light path echo area, and because of optical antenna
It is disposed thereon to be equipped with the closed box of air inlet and gas outlet, and air inlet or gas outlet connect with air pump, due also to light source
To export the laser of visible ray, more because light-intensity test integrating sphere and light intensity receive the use of integrating sphere, and make the present invention not only
Installation baseline is greatly have compressed, so as to the pole under the atmospheric environment in ensureing optical antenna with extraneous identical condition
The earth have compressed volume and avoid the interference of bias light, and the coherence and collimation for also making light source are improved, and also make inspection
The optical signal surveyed and received is the uniform hot spot of light distribution.And then the present invention is set to be provided with small volume, portable and use
The advantages of easy to maintenance, survey by contrast, the visibility error that the present invention determines is less than 5% in 2km, approached in 100m
0.2%, it can be widely used in the accurate measurement to atmospheric visibility.
Brief description of the drawings
Fig. 1 is a kind of basic structure schematic diagram of the present invention.
Embodiment
The preferred embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, the composition of portable visibility transilluminator is as follows：
The present invention includes the optical antenna in casing 17, light source and its light path, and is electrically connected with light source and optical antenna
Observing and controlling part 13, wherein：
Casing 17 is closed, and air inlet 15 and gas outlet 16, air inlet 15 therein are equipped with the closed casing 17
(or gas outlet 16) connects with air pump 14.
Light source is the laser 1 of output visible ray, and its wavelength exported is 525nm.
Optical antenna is placed in casing 17.Optical antenna in casing 17 is the light-intensity test being equipped with successively on light source optical path
Integrating sphere 3, collimation microscope group 5, the speculum 7 positioned at the both ends of light path echo area 8, vacuum tube 9, optical filter 10 and light intensity receive integration
Ball 11；Wherein, the incident optical port of light-intensity test integrating sphere 3 and outgoing optical port are coaxial, and itself and light intensity receive the interior of integrating sphere 11
Light intensity detector 4 and photodetector 12 are equipped with wall respectively.The single length of reflected light path is 100cm in light path echo area 8,
Speculum 7 is 29 (or more than 29), and the upper and lower both sides at its both ends of light path echo area 8 that are placed in.
Connected between laser 1 and light-intensity test integrating sphere 3 through optical fiber 2.
Observing and controlling part 13 is made up of computer and control, acquisition module, wherein, the output end of computer respectively with air pump 14
With electrically connected through control module with the control terminal of laser 1, input distinguishes acquired module and light intensity detector 4 and photoelectricity spy
Survey the output end electrical connection of device 12；Control module therein is light modulating signal generator, light source drive and the light of electrical connection
Strong controller, acquisition module are the preamplifier and data acquisition unit of concatenation.
When measuring visibility, under the control of computer of the air pump 14 in observing and controlling part 13, by the air source outside casing 17
Source is continuously fed in case.Meanwhile the control of computer and control module of the laser 1 in observing and controlling part 13 as light source
Under, send the light output after modulation.The modulation light is through light-intensity test integrating sphere 3 and collimation microscope group 5, and the He of light intensity detector 4
After the synergy of light intensity control in control module, turn into the uniform directional light of light distribution in stabilized intensity and hot spot
Beam 6.This collimated light beam 6 between the speculum 7 at the both ends of light path echo area 8 through multiple reflections, by big qi leel in light path echo area 8
The absorption and scattering of son and particle are influenceed, and in the case of its intensity gradually decays, light is reached via vacuum tube 9 and optical filter 10
It is strong to receive in integrating sphere 11.The photodetector 12 being equipped with the inwall of integrating sphere 11 is received by light intensity to be converted by air to be disappeared
The electric signal after beam intensity change is received caused by light change.The acquired module of electric signal after this change is sent to calculating
Machine, by computer reference and compare the light intensity electric signal without atmospheric extinction decay sent by light intensity detector 4, draw current
Atmospheric visibility value.
Obviously, those skilled in the art can carry out various changes and change to the portable visibility transilluminator of the present invention
Type is without departing from the spirit and scope of the present invention.So, if belonging to right of the present invention to these modifications and variations of the present invention
It is required that and its within the scope of equivalent technologies, then the present invention be also intended to comprising these change and modification including.
Claims (8)
1. a kind of portable visibility transilluminator, including the optical antenna in casing (17), light source and its light path, and and light source
With the observing and controlling part (13) of optical antenna electrical connection, it is characterised in that：
The casing (17) is closed, and air inlet (15) and gas outlet (16) are equipped with the closed casing (17), described
Air inlet (15) or gas outlet (16) connect with air pump (14)；
The light source is the laser (1) of output visible ray；
The optical antenna is placed in casing (17), and the optical antenna being placed in casing (17) is to be put successively on light source optical path
Some light-intensity test integrating spheres (3), collimation microscope group (5), the speculum (7) positioned at light path echo area (8) both ends, optical filter (10)
Integrating sphere (11) is received with light intensity, wherein, the incident optical port and outgoing optical port of light-intensity test integrating sphere (3) are coaxial, and itself and light
Light intensity detector (4) and photodetector (12) are equipped with respectively on the strong inwall for receiving integrating sphere (11)；
The observing and controlling part (13) is made up of computer and control, acquisition module, wherein, the output end of computer respectively with air pump
(14) and through control module with the control terminal of laser (1) electrically connect, input distinguishes acquired module and light intensity detector (4)
Electrically connected with the output end of photodetector (12).
2. portable visibility transilluminator according to claim 1, it is characterized in that the output wavelength of laser (1) is
525nm。
3. portable visibility transilluminator according to claim 1, it is characterized in that reflected light path in light path echo area (8)
Single length is 100cm.
4. portable visibility transilluminator according to claim 3, it is characterized in that speculum (7) is more than 29, and its
The upper and lower both sides at the light path that is placed in echo area (8) both ends.
5. portable visibility transilluminator according to claim 1, it is characterized in that the light input end concatenation of optical filter (10)
There is vacuum tube (9).
6. portable visibility transilluminator according to claim 1, it is characterized in that laser (1) and light-intensity test integrating sphere
(3) connected between through optical fiber (2).
7. portable visibility transilluminator according to claim 1, it is characterized in that being electrically connected with the control terminal of laser (1)
Control module for electrical connection light modulating signal generator, light source drive and light intensity control.
8. portable visibility transilluminator according to claim 1, it is characterized in that with light intensity detector (4) and photodetection
The acquisition module of the output end electrical connection of device (12) is the preamplifier and data acquisition unit of concatenation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710768067.3A CN107356565A (en) | 2017-08-31 | 2017-08-31 | Portable visibility transilluminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710768067.3A CN107356565A (en) | 2017-08-31 | 2017-08-31 | Portable visibility transilluminator |
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| Publication Number | Publication Date |
|---|---|
| CN107356565A true CN107356565A (en) | 2017-11-17 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710768067.3A Pending CN107356565A (en) | 2017-08-31 | 2017-08-31 | Portable visibility transilluminator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187437A (en) * | 2018-09-11 | 2019-01-11 | 安徽省大气探测技术保障中心 | forward scattering visibility meter linearity detection device |
| CN109580623A (en) * | 2018-12-07 | 2019-04-05 | 丁向峰 | Mechanical meteorological optical range measuring instrument |
| CN110793945A (en) * | 2019-10-28 | 2020-02-14 | 北京空间机电研究所 | Synthetic white light atmospheric visibility meter and visibility measuring method |
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| CN1651904A (en) * | 2005-02-07 | 2005-08-10 | 北京交通大学 | Method and apparatus for testing low visibility of at mosphere |
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2017
- 2017-08-31 CN CN201710768067.3A patent/CN107356565A/en active Pending
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| CN1651904A (en) * | 2005-02-07 | 2005-08-10 | 北京交通大学 | Method and apparatus for testing low visibility of at mosphere |
| CN101738384A (en) * | 2010-01-26 | 2010-06-16 | 中国气象局气象探测中心 | Double reflector transmission visibility device and measuring method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187437A (en) * | 2018-09-11 | 2019-01-11 | 安徽省大气探测技术保障中心 | forward scattering visibility meter linearity detection device |
| CN109187437B (en) * | 2018-09-11 | 2023-12-22 | 安徽省大气探测技术保障中心 | Forward scattering visibility meter linearity detection device |
| CN109580623A (en) * | 2018-12-07 | 2019-04-05 | 丁向峰 | Mechanical meteorological optical range measuring instrument |
| CN109580623B (en) * | 2018-12-07 | 2021-06-18 | 深圳凯鸿欣电子科技有限公司 | Mechanical meteorological visibility measuring instrument |
| CN110793945A (en) * | 2019-10-28 | 2020-02-14 | 北京空间机电研究所 | Synthetic white light atmospheric visibility meter and visibility measuring method |
| CN110793945B (en) * | 2019-10-28 | 2022-09-27 | 北京空间机电研究所 | Synthetic white light atmospheric visibility meter and visibility measuring method |
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Application publication date: 20171117 |