CN207181297U - Portable visibility transilluminator - Google Patents
Portable visibility transilluminator Download PDFInfo
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- CN207181297U CN207181297U CN201721103434.XU CN201721103434U CN207181297U CN 207181297 U CN207181297 U CN 207181297U CN 201721103434 U CN201721103434 U CN 201721103434U CN 207181297 U CN207181297 U CN 207181297U
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Abstract
The utility model 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
A kind of visibility transilluminator is the utility model is related to, 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.
Utility model content
The technical problems to be solved in the utility model is to overcome weak point of the prior art, there is provided a kind of small volume,
The convenient portable visibility transilluminator of portable and working service.
To solve technical problem of the present utility model, used technical scheme is that portable visibility transilluminator includes
Optical antenna in casing, 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 utility model
Not only greatly have compressed installation baseline, so as to the atmospheric environment in optical antenna is ensured and the identical condition in the external world it
Under greatly have compressed and volume and avoid the interference of bias light, the coherence and collimation for also making light source are improved, also
The optical signal for making detection and receiving is the uniform hot spot of light distribution.And then the utility model is set to be provided with small volume, just
Take the advantages of facilitating with working service, survey by contrast, the utility model measure visibility error in 2km be less than 5%,
Close to 0.2% during 100m, the accurate measurement to atmospheric visibility can be widely used in.
Brief description of the drawings
Fig. 1 is a kind of basic structure schematic diagram of the present utility model.
Embodiment
Preferred embodiment of the present utility model 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 utility model includes the optical antenna in casing 17, light source and its light path, and electric with light source and optical antenna
The observing and controlling part 13 of connection, 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 to portable visibility transilluminator of the present utility model
With modification without departing from spirit and scope of the present utility model.So, if to these modifications and variations category of the present utility model
Within the scope of the utility model claims and its equivalent technologies, then the utility model is also intended to comprising these changes and become
Including type.
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 |
|---|---|---|---|
| CN201721103434.XU CN207181297U (en) | 2017-08-31 | 2017-08-31 | Portable visibility transilluminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721103434.XU CN207181297U (en) | 2017-08-31 | 2017-08-31 | Portable visibility transilluminator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207181297U true CN207181297U (en) | 2018-04-03 |
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ID=61739610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721103434.XU Active CN207181297U (en) | 2017-08-31 | 2017-08-31 | Portable visibility transilluminator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761577A (en) * | 2018-05-22 | 2018-11-06 | 中国科学院合肥物质科学研究院 | Forward scattering visibility meter outfield calibrating installation based on integrating sphere and method |
| 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 |
-
2017
- 2017-08-31 CN CN201721103434.XU patent/CN207181297U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761577A (en) * | 2018-05-22 | 2018-11-06 | 中国科学院合肥物质科学研究院 | Forward scattering visibility meter outfield calibrating installation based on integrating sphere and method |
| CN108761577B (en) * | 2018-05-22 | 2021-03-26 | 中国科学院合肥物质科学研究院 | Forward scattering visibility meter external field calibrating device and method based on integrating sphere |
| 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 |
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