CN105548071B - A kind of high-altitude vertical section Laser Modulation absorbs humidity measuring instrument and method - Google Patents
A kind of high-altitude vertical section Laser Modulation absorbs humidity measuring instrument and method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000005259 measurement Methods 0.000 claims abstract description 31
- 230000008878 coupling Effects 0.000 claims abstract description 12
- 238000010168 coupling process Methods 0.000 claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000000041 tunable diode laser absorption spectroscopy Methods 0.000 claims abstract description 9
- 239000013307 optical fiber Substances 0.000 claims description 13
- 238000009499 grossing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 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 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 4
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- 239000000523 sample Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- G—PHYSICS
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- 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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
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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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
- G01N2021/391—Intracavity sample
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Abstract
The invention discloses a kind of high-altitude vertical section Laser Modulation to absorb humidity measuring instrument and method, including a measurement storehouse, measurement is provided with the light fibre humidity transducer being connected with TDLAS systems and Wireless data transmission module in storehouse, the humidity data of reception is transferred to grounded receiving station by Wireless data transmission module, being horizontally disposed with the measurement storehouse has a light path gas chamber, light fibre humidity transducer is arranged in light path gas chamber, light path gas chamber front end is connected with free surrounding space, an air-negative-pressure storehouse is connected with light path gas chamber rear end, the gas measured outside storehouse is flowed into by the negative pressure that air flow in negative pressure cabin produces from the front end of light path gas chamber.The present invention uses a kind of light optical coupling long light path gas chamber of anti-vibration of cascaded structure, there is the kuppe by negative pressure suction air outside gas chamber, avoid the air frontal impact sensor of high-speed flight, sensor number passes the GPS information that program module reads aircraft, by positional information and weather information synchronous acquisition, realize that geography information is merged with weather information.
Description
Technical field
The invention belongs to high-altitude moisture measurement technology, more particularly to a kind of high-altitude vertical section Laser Modulation absorbs humidity and surveys
Measure device and method.
Background technology
China's meteorological field at present, carries out high-altitude humidity detection using UAV flight's humidity sensor, but only makees
For experiment.According to literature survey, technical solution is used as payload platform by small drone at present, thus for sensor weight,
Power consumption requires, while small drone is unable to reach more than 3km, can not obtain comprehensive weather information.
Balloon carries humicap and carries out aerological sounding, but ascending path can not as conventional aerological sounding means
Control, can not detect vertical section information.
Either balloon or unmanned aerial vehicle platform, the humidity sensor of carrying are humicap mode, such sensor
Response time is slow, about 20 ~ 30 seconds, therefore during unmanned plane high-speed flight or balloon rapid increase, collection information is sluggish, position
Confidence ceases and humidity information is misaligned.
The content of the invention
The purpose of the present invention is to propose to a kind of high-altitude vertical section Laser Modulation to absorb humidity measuring instrument and method, passes through
The light of the anti-vibration of cascaded structure-optical coupling long light path gas chamber, designs a kind of kuppe by negative pressure suction air outside gas chamber,
Avoid the air frontal impact sensor of high-speed flight；Sensor self-contained storing devices real-time storage humidity information.At the same time according to nothing
Man-machine communication link, devises sensor number and passes program module, the GPS information of aircraft is read, by positional information and weather information
Synchronous acquisition, realizes that geography information is merged with weather information.
To achieve these goals, the technical scheme is that：
A kind of high-altitude vertical section Laser Modulation absorbs humidity measuring instrument, including one is used to install survey aircraft back
A flat base, a measurement storehouse is horizontally mounted on pedestal, measures in storehouse and sets and TDLAS systems and Wireless data transmission
The humidity data of reception is transferred to ground receiver by the light fibre humidity transducer of module connection, Wireless data transmission module
Stand, wherein, being horizontally disposed with the measurement storehouse has a light path gas chamber, and light fibre humidity transducer is arranged in light path gas chamber, light
Journey gas chamber front end is connected with free surrounding space, is connected with an air-negative-pressure storehouse in light path gas chamber rear end, measure gas outside storehouse by
The negative pressure that air flow produces in negative pressure cabin is flowed into from the front end of light path gas chamber.
Scheme is further：It is a radome fairing, radome fairing central axis and light path air chamber length side outside the negative pressure cabin
Overlapped to central axis, the front end of radome fairing is a raised arc surface, and radome fairing is smooth with arc surface up and down
The plane of connection, radome fairing rear end are connected with light path gas chamber rear end, are respectively arranged with the left and right sides plane of the radome fairing
The through hole connected with negative pressure cabin, openings connect an airflow duct perpendicular to plane, and conduit mouth is a windward side height, the back of the body
The low groove in wind face, when the measurement storehouse that aircraft drives is travelling forward, conduit mouth leeward produces negative pressure and drives negative pressure cabin gas
Stream is suctioned out along conduit mouth, and then makes the gas outside measurement storehouse by the negative pressure of air flow generation in negative pressure cabin before light path gas chamber
End flows into.
Scheme is further：Radome fairing front end arc surface is provided with cambered surface stomata in the cambered surface of both sides up and down, in rectification
The through hole connected with cambered surface stomata is respectively equipped with the lower planes of cover, openings connect an air-flow perpendicular to plane and lead
Pipe, conduit mouth are the low groove of a high leeward in windward side, when the measurement storehouse that aircraft drives is travelling forward, the conduit mouth back of the body
The air-flow part that wind face produces negative pressure guiding radome fairing front end arc surface is flowed out from upper and lower two side planes airflow duct, reduce by
The air inlet connected when the measurement storehouse that aircraft drives is travelling forward to light path gas chamber front end with free surrounding space produces air inlet shadow
Ring.
Scheme is further：The light path gas chamber is the strip space that cross section is rectangle, among strip space
Axis, which is uniformly distributed, is provided with multiple rectangular frames, and the light fibre humidity transducer is along two opposite frames of the rectangular frame
On frame, the optical fiber that is wound in adjacent frame joins end to end to connect to be serially connected spaced uniform winding.
Scheme is further：The optical fiber total length that the multiple frame is serially connected is at least 1000mm.
Scheme is further：Light coupling is provided with two opposite frames, the optical fiber passes through light coupling
It is wrapped in through frame on frame.
Scheme is further：The optical fiber being serially connected at least sets two groups.
A kind of high-altitude vertical section Laser Modulation absorbs humidity measuring method, and the humidity measuring instrument is horizontally mounted
Be a radome fairing at aircraft back, outside the negative pressure cabin of described device, in radome fairing central axis and light path air chamber length direction
Mandrel line overlaps, and the front end of radome fairing is a raised arc surface, and radome fairing is in smoothing junction with arc surface up and down
Plane, radome fairing rear end is connected with light path gas chamber rear end, is respectively arranged with and bears in the left and right sides plane of the radome fairing
The through hole of storehouse connection is pressed, openings connect an airflow duct perpendicular to plane, and conduit mouth is windward side height, a leeward
Low groove, when the measurement storehouse that aircraft drives is travelling forward, conduit mouth leeward produces negative pressure and drives negative pressure cabin air-flow suitable
Conduit mouth suctions out, and then the gas outside measurement storehouse is flowed by the negative pressure that air flow in negative pressure cabin produces from the front end of light path gas chamber
Enter；The method is：By the raised arc surface of device radome fairing towards plane nose to installation, aircraft, which clears the runway, have been started
Fly, start to measure；The track that aircraft rises is risen with the track spiraled, one week height risen of often spiraling be 800 meters extremely
1000 meters, humidity data, aircraft GPS positioning data are read in real time, and both are combined, and are formed with location information
Sent after meteorological data information to earth station.
The beneficial effects of the invention are as follows：The present invention is gas sensing techniques of new generation using TDLAS technologies, and the response time is fast
（0.1 second-time）, no information is sluggish, is carried by medium-and-large-sized unmanned aerial vehicle platform, and sensor is placed outside unmanned plane machine back of the body position, nothing
Man-machine setting spiral path, gathers vertical section information.
The present invention uses a kind of light of the anti-vibration of cascaded structure-optical coupling long light path gas chamber, and one kind is designed outside gas chamber
The kuppe of air is sucked by negative pressure, avoids the air frontal impact sensor of high-speed flight.To ensure ground high humility and height
Empty low humidity situation, this method devise the probe of two kinds of light paths, and sensor number passes the GPS information that program module reads aircraft,
By positional information and weather information synchronous acquisition, realize that geography information is merged with weather information.
Invention is described in detail with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is apparatus of the present invention monnolithic case schematic perspective view；
Fig. 2 is the lateral view of apparatus of the present invention, the A direction views of Fig. 1；
Fig. 3 is apparatus of the present invention front view, and the B of Fig. 1 is to diagram；
Fig. 4 be apparatus of the present invention inside a direction structure diagram, the C-C views of Fig. 2；
Fig. 5 be apparatus of the present invention inside another direction structure diagram, the D-D views of Fig. 3；
Fig. 6 is apparatus of the present invention humidity sensor assembling structure schematic diagram.
Embodiment
Embodiment 1：
A kind of high-altitude vertical section Laser Modulation absorbs humidity measuring instrument, and as shown in Figures 1 to 5, including one is used for
One flat base 1 at survey aircraft back is installed, a measurement storehouse 2 is horizontally mounted on pedestal, measure be provided with storehouse with can
Tuning semiconductor laser absorption spectrum TDLAS（Tunable Diode Laser Absorption Spectroscopy）System
The light fibre humidity transducer connected with Wireless data transmission module, Wireless data transmission module is by the humidity data of reception
Grounded receiving station is transferred to, wherein, as shown in figure 4, being horizontally disposed with the measurement storehouse has a light path gas chamber 201, the light
Journey gas chamber is the strip space that cross section is rectangle, is a rectangular enclosure around light path gas chamber, and light fibre humidity transducer is set
In light path gas chamber, light path gas chamber front end 201-1 is provided with a gas buffer cover 202, and light path gas chamber front end passes through impact-absorbing shell
Connected with free surrounding space, an air-negative-pressure storehouse 203 is connected with light path gas chamber rear end, measure the gas outside storehouse by negative pressure cabin
The negative pressure that air flow produces is flowed into from the front end of light path gas chamber.
In embodiment：As shown in Figure 1, it is a radome fairing 204, radome fairing central axis and light path gas outside the negative pressure cabin
Room length direction central axis overlaps, and the front end of radome fairing is a raised arc surface 204-1, and radome fairing is up and down
With arc surface smooth connection and parallel to the plane 204-2 of axis, radome fairing rear end is connected with light path gas chamber rear end, described
The left and right sides plane of radome fairing is respectively arranged with the through hole 203-1 connected with negative pressure cabin, and openings connect one perpendicular to flat
The airflow duct 203-2 in face, conduit mouth are a surface side windward（Raised circular arc surface side）The low groove 203-2- in high, leeward surface side
1, the best angle of groove is 45 degree；The principle for the negative pressure that air flow produces is in negative pressure cabin：When the measurement storehouse that aircraft drives
When travelling forward, conduit mouth leeward produces negative pressure and drives negative pressure cabin air-flow to be suctioned out along conduit mouth, and then makes outside measurement storehouse
Gas is flowed into by the negative pressure that air flow in negative pressure cabin produces from the front end of light path gas chamber.
In embodiment：Radome fairing front end arc surface is provided with cambered surface stomata 204-1-1 in the cambered surface of both sides up and down, whole
Flow and the through hole 204-2-1 connected with cambered surface stomata is respectively equipped with the lower planes of cover, openings connect one perpendicular to plane
Airflow duct 204-2-2, conduit mouth is a surface side windward（Raised circular arc surface side）The low groove 204-2- in high leeward surface side
2-1, the best angle of groove is 45 degree；When the measurement storehouse that aircraft drives is travelling forward, conduit mouth leeward produces negative pressure
Guide an air-flow part for radome fairing front end arc surface to be flowed out from upper and lower two side planes airflow duct and reduce what is driven due to aircraft
The air inlet that measurement storehouse connects light path gas chamber front end with free surrounding space when travelling forward, which produces air inlet, to be influenced.
In embodiment：The light path gas chamber is the strip space that cross section is rectangle, perpendicular to strip space medial axis
It is uniformly distributed and is provided with multiple rectangular frames 3, as shown in fig. 6, the light fibre humidity transducer 4 is opposite along the rectangular frame
On frame, the optical fiber that is wound in adjacent frame joins end to end to connect to be serially connected two spaced uniform windings of frame.
In embodiment：The optical fiber total length that the multiple frame is serially connected is at least 1000mm.
In embodiment：Light coupling 5 is provided with two opposite frames, the optical fiber is passed through by light coupling
Frame is wrapped on frame.
In embodiment：The optical fiber being serially connected at least sets two groups.
In above-described embodiment, multiple frames are supported on the light-optical coupling for the anti-vibration that cascaded structure is formed in light path gas chamber
Long light path gas chamber, designs a kind of kuppe by negative pressure suction air outside gas chamber, avoids the air frontal impact of high-speed flight
Sensor.To ensure that ground high humility and high-altitude low humidity situation, this structure at least set two in the optical fiber being serially connected
Group forms the probe of two kinds of light paths, and switches over measurement by TDLAS systems, and TDLAS system hosts are placed in unmanned plane and set
In standby load cabin, two lasers carry out redundancy guarantee.Sensor self-contained storing devices, real-time storage humidity information.Foundation at the same time
UAV Communication link, there is provided sensor number to pass program module, reads the GPS information of aircraft, by positional information and meteorological letter
Synchronous acquisition is ceased, realizes that geography information is merged with weather information.
To ensure measurement accuracy, humidity sensor is placed in machine back, avoids wing position high speed airflow influence, tail
Position engine temperature influences.System host is installed in unmanned plane equipment compartment.
System host accesses in aircraft the baroceptor also set up and the present embodiment by signal converting processing board
Humidity sensor, while the GPS positioning information of unmanned plane is read, by the sensing data containing spatial positional information by nobody
Machine transparent transmission radio station is sent to UAV ground control station, and preserves data.
System includes data sensor subsystem, data communication subsystem, data process subsystem, power management system really
System.
Power-supply management system is system power supply by unmanned plane power module；Data sensor subsystem by temperature, humidity,
Pressure sensor is integrated with being applied；Data process subsystem reads sensing data, unmanned plane GPS positioning data, and will
Both combine, and form the meteorological data information with location information；Information after data communication subsystem is integrated is sent to ground
Stand.
Wherein, humidity sensor uses TDLAS Laser Modulation absorption techniqueses.It is measurement low humidity, it is necessary to long-range light optical coupling
Gas chamber, while to meet that unmanned machine vibration, impact require, therefore using the tandem light optical coupling side of 50mm laser welding modes
Formula, is spliced into 1m light paths.
Embodiment 2：
A kind of high-altitude vertical section Laser Modulation absorbs humidity measuring method, is the method for 1 described device of Application Example,
Therefore the content in embodiment 1 also should be for the content in the present embodiment, wherein：The humidity measuring instrument is horizontally mounted
Be a radome fairing at aircraft back, outside the negative pressure cabin of described device, in radome fairing central axis and light path air chamber length direction
Mandrel line overlaps, and the front end of radome fairing is a raised arc surface, and radome fairing is in smoothing junction with arc surface up and down
Plane, radome fairing rear end is connected with light path gas chamber rear end, is respectively arranged with and bears in the left and right sides plane of the radome fairing
The through hole of storehouse connection is pressed, openings connect an airflow duct perpendicular to plane, and conduit mouth is windward side height, a leeward
Low groove, when the measurement storehouse that aircraft drives is travelling forward, conduit mouth leeward produces negative pressure and drives negative pressure cabin air-flow suitable
Conduit mouth suctions out, and then the gas outside measurement storehouse is flowed by the negative pressure that air flow in negative pressure cabin produces from the front end of light path gas chamber
Enter；The method is：By the raised arc surface of device radome fairing towards plane nose to installation, aircraft, which clears the runway, have been started
Fly, start to measure；The track that aircraft rises is risen with the track spiraled, one week height risen of often spiraling be 800 meters extremely
1000 meters, humidity data, aircraft GPS positioning data are read in real time, and both are combined, and are formed with location information
Sent after meteorological data information to earth station.
Claims (7)
1. a kind of high-altitude vertical section Laser Modulation absorbs humidity measuring instrument, including one is used to install survey aircraft back
One flat base, a measurement storehouse is horizontally mounted on pedestal, measures in storehouse and sets and TDLAS systems and Wireless data transmission mould
The humidity data of reception is transferred to ground receiver by the light fibre humidity transducer of block connection, Wireless data transmission module
Stand, it is characterised in that being horizontally disposed with the measurement storehouse has a light path gas chamber, and light fibre humidity transducer is arranged on light path gas chamber
In, light path gas chamber front end is connected with free surrounding space, and an air-negative-pressure storehouse is connected with light path gas chamber rear end, measures the gas outside storehouse
Body is flowed into by the negative pressure that air flow in negative pressure cabin produces from the front end of light path gas chamber；
It is a radome fairing outside the negative pressure cabin, radome fairing central axis is overlapped with light path air chamber length direction central axis, whole
The front end of stream cover is a raised arc surface, and radome fairing is plane with arc surface smooth connection up and down, radome fairing
Rear end is connected with light path gas chamber rear end, the left and right sides plane of the radome fairing be respectively arranged with connected with negative pressure cabin it is logical
Hole, openings connect an airflow duct perpendicular to plane, and conduit mouth is the low groove of windward side height, a leeward, when
When travelling forward, conduit mouth leeward produces negative pressure and drives negative pressure cabin air-flow to be suctioned out along conduit mouth in the measurement storehouse that aircraft drives,
And then the gas outside measurement storehouse is set to be flowed into by the negative pressure that air flow in negative pressure cabin produces from the front end of light path gas chamber.
2. vertical section Laser Modulation in high-altitude according to claim 1 absorbs humidity measuring instrument, it is characterised in that described
Radome fairing front end arc surface is provided with cambered surface stomata in both sides cambered surfaces up and down, is respectively equipped with the lower planes of radome fairing and arc
The through hole of face stomata connection, openings connect an airflow duct perpendicular to plane, and conduit mouth is leeward for a windward side height
The low groove in face, when the measurement storehouse that aircraft drives is travelling forward, conduit mouth leeward produces negative pressure guiding radome fairing front end
An air-flow part for arc surface is flowed out from upper and lower two side planes airflow duct, is reduced since the measurement storehouse that aircraft drives is being transported forward
The air inlet connected when dynamic on light path gas chamber front end with free surrounding space, which produces air inlet, to be influenced.
3. vertical section Laser Modulation in high-altitude according to claim 1 absorbs humidity measuring instrument, it is characterised in that described
Light path gas chamber is the strip space that cross section is rectangle, and perpendicular to strip space, medial axis, which is uniformly distributed, is provided with multiple rectangles
Frame, the light fibre humidity transducer along two opposite spaced uniform windings of frame of the rectangular frame on frame,
The optical fiber wound in adjacent frame joins end to end to connect and is serially connected.
4. vertical section Laser Modulation in high-altitude according to claim 3 absorbs humidity measuring instrument, it is characterised in that described
The optical fiber total length that multiple frames are serially connected is at least 1000mm.
5. vertical section Laser Modulation in high-altitude according to claim 3 absorbs humidity measuring instrument, it is characterised in that described
Light coupling is provided with two opposite frames, the optical fiber is wrapped on frame by light coupling through frame.
6. vertical section Laser Modulation in high-altitude according to claim 3 absorbs humidity measuring instrument, it is characterised in that described
The optical fiber being serially connected at least sets two groups.
7. a kind of high-altitude vertical section Laser Modulation absorbs humidity measuring method, by the humidity measuring instrument described in claim 1
Aircraft back is horizontally arranged at, is a radome fairing outside the negative pressure cabin of described device, radome fairing central axis is grown with light path gas chamber
Direction central axis is spent to overlap, the front end of radome fairing is a raised arc surface, radome fairing be up and down and arc surface
Plane in smoothing junction, radome fairing rear end is connected with light path gas chamber rear end, is set respectively in the left and right sides plane of the radome fairing
It is equipped with the through hole connected with negative pressure cabin, openings connect one perpendicular to plane airflow duct, conduit mouth is a windward side height,
The low groove of leeward, when the measurement storehouse that aircraft drives is travelling forward, conduit mouth leeward produces negative pressure and drives negative pressure cabin
Air-flow is suctioned out along conduit mouth, and then makes gas outside measurement storehouse by the negative pressure that air flow in negative pressure cabin produces from light path gas chamber
Front end flows into；It is characterized in that, the method is：By the raised arc surface of device radome fairing towards plane nose to installation, fly
Machine, which clears the runway, to be started to take off, and starts to measure；The track that aircraft rises is risen with the track spiraled, and often spirals what is risen one week
Highly it is 800 meters to 1000 meters, reads humidity data, aircraft GPS positioning data in real time, and both are combined, is formed
Sent after meteorological data information with location information to earth station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877657.0A CN105548071B (en) | 2015-12-04 | 2015-12-04 | A kind of high-altitude vertical section Laser Modulation absorbs humidity measuring instrument and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510877657.0A CN105548071B (en) | 2015-12-04 | 2015-12-04 | A kind of high-altitude vertical section Laser Modulation absorbs humidity measuring instrument and method |
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| CN105548071B true CN105548071B (en) | 2018-05-04 |
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| US6076963A (en) * | 1998-10-20 | 2000-06-20 | Avionics Specialties, Inc. | Aircraft probe with integral air temperature sensor |
| CN104865580B (en) * | 2015-05-20 | 2017-08-29 | 北京空间机电研究所 | A kind of spaceborne marine atmosphere parameter Airborne Lidar examining system |
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Denomination of invention: High altitude vertical profile laser-modulated absorbed humidity measuring device and method Effective date of registration: 20191111 Granted publication date: 20180504 Pledgee: Beijing Yizhuang International Financing Guarantee Co.,Ltd. Pledgor: BEIJING AEROSPACE YILIAN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2019990000503 |
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Denomination of invention: A device and method for measuring humidity in high altitude vertical profile by laser modulation absorption Effective date of registration: 20220923 Granted publication date: 20180504 Pledgee: Beijing Yizhuang International Financing Guarantee Co.,Ltd. Pledgor: BEIJING AEROSPACE YILIAN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2022990000667 |
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Address after: Building 24, 18th Courtyard, Kechuang 13th Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing, 100176 Patentee after: Beijing Aerospace Tianhong Intelligent Equipment Technology Co.,Ltd. Address before: Building 24, 18th Courtyard, Kechuang 13th Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing, 100176 Patentee before: BEIJING AEROSPACE YILIAN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Denomination of invention: A high-altitude vertical profile laser modulation absorption humidity measurement device and method Effective date of registration: 20230919 Granted publication date: 20180504 Pledgee: Beijing Yizhuang International Financing Guarantee Co.,Ltd. Pledgor: Beijing Aerospace Tianhong Intelligent Equipment Technology Co.,Ltd. Registration number: Y2023990000460 |