CN206235612U - A kind of sounding humidity measuring instrument for eliminating solar radiation error - Google Patents
A kind of sounding humidity measuring instrument for eliminating solar radiation error Download PDFInfo
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- CN206235612U CN206235612U CN201621296001.6U CN201621296001U CN206235612U CN 206235612 U CN206235612 U CN 206235612U CN 201621296001 U CN201621296001 U CN 201621296001U CN 206235612 U CN206235612 U CN 206235612U
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Abstract
The utility model discloses a kind of sounding humidity measuring instrument for eliminating solar radiation error, including environmental detection unit, data acquisition unit, the first data processing unit, the first wireless communication unit and ground based terminal unit；The environmental detection unit includes humidity sensor, and the upper surface of humidity sensor is provided with the first temperature sensor, and its surrounding is at least provided with a second temperature sensor；Output end of the input of the data acquisition unit respectively with humidity sensor, the first temperature sensor and second temperature sensor is connected；First data processing unit is located between data acquisition unit and the first wireless communication unit；The ground based terminal unit includes the second wireless communication unit and the second data processing unit that are connected with each other, wireless connection between the second wireless communication unit and the first wireless communication unit.The utility model improves the accuracy and stability of moisture measurement, and greatly reduces cost.
Description
Technical field
The utility model is specifically related to a kind of sounding humidity measuring instrument for eliminating solar radiation error.
Background technology
The natural calamity occurrence frequency such as China's snow disaster, drought, flood is high in recent years, it is wide, destructive big to do harm to harm, to people
The development for causing grave danger, seriously constraining social economy of people's security of the lives and property.Requirement of the country to meteorological support is more
It is urgent, expectation also more and more higher.Accurate climate factors measurement data is to realize accurate weather forecast and meteorological disaster
The basis of early warning.Thus at present to the accurate detection of climate factors especially high-altitude humidity detection requirement also increasingly
It is high.Now, sounding hygrosensor has double heating humidity sensors, efficiently solves altitude low temperature, low humidity, low pressure sensor and holds
The problem for easily condensing, freezing；Also the humidity sensor with protective cover, effectively improves measurement essence caused by the sexual intercourse of high-altitude
Spend the problem for reducing.
Even so, also there is following defect in sounding humidity detection at this stage：(1) except by shadows such as material itself and structures
Ring outer, research shows that solar radiation causes moisture measurement obvious partially dry phenomenon occur, but still lacks preferable solution party at present
Case.(2) traditional sounding humidity sensor need to spend substantial amounts of cost；(3) humidity coefficient amendment is stranded under high-altitude, low temperature environment
Difficulty, the electric capacity of humidity sensor and the relation curve of relative humidity, variation with temperature and change, existing technology is difficult in temperature
Degree carries out error correction exactly in the range of changing greatly.
Utility model content
Regarding to the issue above, the utility model proposes a kind of sounding humidity measuring instrument for eliminating solar radiation error,
The accuracy and stability of moisture measurement are improve, and greatly reduces cost.
Above-mentioned technical purpose is realized, above-mentioned technique effect is reached, the utility model is achieved through the following technical solutions：
A kind of sounding humidity measuring instrument for eliminating solar radiation error, including environmental detection unit, data acquisition list
Unit, the first data processing unit, the first wireless communication unit and ground based terminal unit；The environmental detection unit is passed including humidity
Sensor, the upper surface of humidity sensor is provided with the first temperature sensor, its surrounding at least provided with a second temperature sensor,
Two temperature sensors are propped by support, and one end of support is connected with humidity sensor, and the other end and the second temperature of support are sensed
Device is connected；The input of the data acquisition unit is sensed with humidity sensor, the first temperature sensor and second temperature respectively
The output end of device is connected；First data processing unit is located between data acquisition unit and the first wireless communication unit；Institute
Stating ground based terminal unit includes the second wireless communication unit and the second data processing unit that are connected with each other, the second radio communication list
Wireless connection between unit and the first wireless communication unit.
Further, first temperature sensor is RTD array temperature sensor；Second temperature sensor is
RTD ball-type temperature sensor；The material of the support is aluminium, and the reflectivity of aluminium is more than 90%.
Further, the upper surface of the humidity sensor is provided with first temperature sensor, and its surrounding lays four
Second temperature sensor.
Further, it is equipped with protective cover in first temperature sensor and second temperature sensor.
Further, the humidity sensor includes the basalis, the first insulating barrier, the heating that are set according to lamination from bottom to up
Layer, the second insulating barrier, lower electrode layer, humidity sensing layer, porous upper electrode layer and top screen layer.
Further, the data acquisition unit includes A/D sample circuits and multi-resonant oscillating circuit；The A/D samplings electricity
Output end of the input on road respectively with each temperature sensor is connected；The input of multi-resonant oscillating circuit is defeated with humidity sensor
Go out end to be connected；The output end of A/D sample circuits and multi-resonant oscillating circuit is connected with the first data processing unit；First number
Include first microprocessor chip according to processing unit；Second data processing unit includes the second microprocessor chip.
Further, first wireless communication unit includes first Big Dipper being connected with first microprocessor chip respectively
Communication module and the first GPS module；Second wireless communication unit includes be connected with the second microprocessor chip respectively the
Two Beidou communication modules and the second GPS module；The first Beidou communication module and the second Beidou communication module wireless connection；The
One GPS module and the second GPS module wireless connection.
Further, the sounding humidity measuring instrument for eliminating solar radiation error, also including the electricity for powering
Source module, the power module includes the mu balanced circuit that dc source is connected with dc source, is connected with mu balanced circuit respectively
Analog power, reference voltage source and digital power；Analog power is used to be powered for environmental detection unit；Reference voltage source is used for
Data acquisition unit is powered；Digital power is used to be powered for the first data processing unit.
A kind of sounding humidity measuring method for eliminating solar radiation error, comprises the following steps：
(1) the relative humidity RH under solar radiation heating condition is measured using humidity sensor0, humidity sensor upper surface
The first temperature sensor measure the temperature T of humidity sensor upper surface under solar radiation heating condition0, and by data acquisition
Unit is transferred to the first data processing unit；
(2) first data processing units recall the relation curve of the saturation vapour pressure and temperature for prestoring；
(3) relation curve in step 2 obtains T0Corresponding saturation vapour pressure P0；
(4) according to relative humidity formula：Obtain
Therefore the actual water vapor pressure P in airr=RH0×P0；
(5) second temperature sensor located at humidity sensor surrounding measures the actual temperature in atmospheric environment, and passes through
Data acquisition unit is transferred to the first data processing unit, and the first data processing unit is averaged to it and obtains temperature T1；
(6) first data processing units obtain temperature T by saturation vapour pressure and temperature relation1Corresponding saturation vapour
Pressure P1；
(7) revised rh value RH is obtained by relative humidity formula0'：
(8) first data processing units are by revised rh value RH0' be sent to by the first wireless communication unit
Ground based terminal unit, completes moisture measurement.
The beneficial effects of the utility model：
1. the utility model humidity sensor employs 1 array temperature sensor and 4 spherical temperature sensors,
Array temperature sensor can be under shoot the sun radiation on the wetness sensor surface wetness sensor surface temperature value, it is described wet
Four spherical temperature sensors that degree sensor surrounding is propped for support, can survey temperature actual in accurate measurement atmospheric environment
Degree；
2. the temperature sensor that the utility model is used is fitted with protective cover, is effectively improved solar radiation and rainwater to temperature
Spend the influence of measurement；
3. the data transfer in the utility model uses Beidou communication module and GPS module, is available for user to select.The Big Dipper covers
Lid scope is big, navigator fix can be combined with communication；
4. moisture signal Acquisition Circuit of the present utility model uses multi-resonant oscillating circuit, simple structure, while having error
The characteristics of small, strong antijamming capability, accurate measurement；
5. the utility model is combined method and eliminates solar radiation error using software and hardware, reduces solar radiation partially dry
The cost of error correction, market application value is big；
6. the utility model carries out data processing using the STM32407ZGT6 single-chip microcomputers of 32 and solar radiation error is mended
Repay, the working frequency of the single-chip microcomputer is 168MHZ, the internal memory of 1024K and the SRAM of 192KB, and speed is fast, and real-time is good, reduces
Delay time error.
7. the utility model proposes a kind of sounding humidity measuring instrument and method for eliminating solar radiation error, in height
Especially solar radiation error amendment field has very big market prospects to empty humidity field of detecting.
Brief description of the drawings
Fig. 1 is the mounting structure schematic diagram of humidity sensor and temperature sensor；
Fig. 2 is the circuit block diagram of sounding humidity measuring instrument of the present utility model；
Fig. 3 is humidity measurement system change of temperature field figure under solar radiation；
Fig. 4 is the flow chart of the humidity measuring method that can eliminate solar radiation error.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain this practicality
It is new, it is not used to limit the utility model.
Application principle of the present utility model is explained in detail below in conjunction with the accompanying drawings.
As shown in Figure 1-2, a kind of sounding humidity measuring instrument for eliminating solar radiation error, including environment measuring list
Unit, data acquisition unit, the first data processing unit, the first wireless communication unit and ground based terminal unit；The environment measuring
Unit includes humidity sensor, and the upper surface of humidity sensor is provided with the first temperature sensor 10, can measuring moisture sensor surface
Temperature, its surrounding propped at least provided with a second temperature sensor 17, second temperature sensor 17 by support 12, support 12
One end be connected with humidity sensor, the other end of support 12 is connected with second temperature sensor 17, and support 12 is along humidity sensor
Device diagonal extends, and its length is 3~5 times of humidity sensor, it is ensured that the measurement of second temperature sensor 17 is air
True temperature；The input of the data acquisition unit respectively with humidity sensor, the first temperature sensor 10 and second temperature
The output end of sensor 17 is connected；First data processing unit located at data acquisition unit and the first wireless communication unit it
Between；The ground based terminal unit includes the second wireless communication unit and the second data processing unit that are connected with each other, and second is wireless
Wireless connection between communication unit and the first wireless communication unit.
In a kind of embodiment of the present utility model, first temperature sensor 10 is passed by column 9 installed in humidity
, there is gap in the upper surface of sensor, prevent humidity sensor and the first temperature between the first temperature sensor 10 and humidity sensor
There is heat transfer between degree sensor 10, so as to influence the certainty of measurement of the first temperature sensor 10.
In a kind of embodiment of the present utility model, first temperature sensor 10 is array temperature sensor, excellent
RTD array temperature sensor is elected as, for measurement wetness sensor surface in real time because solar radiation heating is elevated
Temperature change；Second temperature sensor 17 is ball-type temperature sensor, preferably RTD ball-type temperature sensor, for measuring
Away from the atmospheric environment true temperature of wetness sensor surface；The material of the support 12 is aluminium, and the reflectivity of aluminium is more than
90%.
In the utility model, because the heat that humidity sensor absorbs solar radiation causes sensor internal temperature liter
Height, this phenomenon is referred to as internal heat conduction, using the influence of the statement solar radiation of principle.
In preferred embodiment of the present utility model, the upper surface of the humidity sensor is provided with first TEMP
Device 10, its surrounding lays four second temperature sensors 17.
In a kind of embodiment of the present utility model, on first temperature sensor 10 and second temperature sensor 17
Protective cover (11,13,14,15,16) is provided with, for eliminating the influence of solar radiation and rainwater to thermometric.
In a kind of embodiment of the present utility model, the humidity sensor includes the substrate for being set according to lamination from bottom to up
The 1, first insulating barrier 2 of layer, zone of heating 3, the second insulating barrier 4, lower electrode layer 5, humidity sensing layer 6, porous upper electrode layer 7 and top screen
Layer 8.Wherein, the material of basalis 1 is the monocrystalline silicon of 300 μ m-thicks, and the oxidation of basalis 1 forms the silica of 1~2 μ m-thick as the
One insulating barrier 2, the heating of the concentric circles three-dimensional shape of 4~6 μ m-thicks is prepared using photoetching and lithographic technique on the first insulating barrier 2
Layer 3, the material of zone of heating 3 is metal RTD, and its heating power is high and is easy to temperature control, and zone of heating overlying has aluminum oxide as the
Two insulating barriers 4, chemical wet etching prepares bottom electrode (preferably golden bottom electrode), i.e. lower electrode layer, bottom electrode on the second insulating barrier 4
Upper use macromolecule polymeric material polyimides as humidity humidity sensing layer 6, on humidity sensing layer 6 using one layer 20 of magnetron sputtering~
40nm thick porous upper electrode layer 7 (preferably porous au upper electrode layer), prepares plastic top filter mesh layer in porous Top electrode
8, prevent the outside contamination during sounding hygrometric.
In a kind of embodiment of the present utility model, the data acquisition unit includes A/D sample circuits and multi-harmonic-oscillations
Circuit；Output end of the input of the A/D sample circuits respectively with each temperature sensor is connected；The input of multi-resonant oscillating circuit
End is connected with the output end of humidity sensor；The output end of A/D sample circuits and multi-resonant oscillating circuit with the first data processing
Unit is connected；A/D sample circuits and multi-resonant oscillating circuit are respectively used to temperature signal and humidity after collection amplification, filtering process
Signal；First data processing unit includes first microprocessor chip；Second data processing unit includes that second is micro-
Processor chips.Preferably, the A/D sample circuits include 2 chips of model AD7794；First microprocessor chip is adopted
Use STM32ZGT6 single-chip microcomputers；Second microprocessor chip uses arm processor, multi-resonant oscillating circuit to use ICM7555.
It is highly preferred that being additionally provided with signal isolation circuit and steady between the first microprocessor chip and data acquisition unit
Pressure isolation circuit, for processing the signal that data acquisition unit is collected.
In a kind of embodiment of the present utility model, first wireless communication unit include respectively with first microprocessor
Chip connected the first Beidou communication module and the first GPS module；Second wireless communication unit includes micro- with second respectively
Processor chips connected the second Beidou communication module and the second GPS module；The first Beidou communication module and second Big Dipper
Communication module wireless connection；First GPS module and the second GPS module wireless connection.
In a kind of embodiment of the present utility model, first data processing unit also include LCD LCD MODULEs,
Ports Serial Communication Ports, LCD LCD MODULEs are used to show the data after treatment；The Ports Serial Communication Ports respectively with
First Beidou communication module is connected with the first GPS module；The ground based terminal big unit includes power supply, the second microprocessor chip
(ARM process chips), interface unit, the second Beidou communication module and the second GPS module, the second Beidou communication module include
Big Dipper baseband module, Big Dipper radio-frequency module, the Big Dipper receive LAN, Big Dipper emission power amplifier, Big Dipper reception antenna；It is described
Second GPS module includes GPS receiving antenna, GPS baseband modules, GPS radio frequency module and GPS core CPUs；
In a kind of embodiment of the present utility model, a kind of described sounding moisture measurement for eliminating solar radiation error
Device, also including the power module for powering, the power module includes the voltage stabilizing electricity that dc source is connected with dc source
Road, the analog power being connected with mu balanced circuit respectively, reference voltage source and digital power；Analog power is used to be environmental monitoring list
Unit's power supply；Reference voltage source is used to be powered for data acquisition unit；Digital power is used to be powered for data processing unit.It is preferred that
Ground, the dc source is 12V dc sources.
Change of temperature field figure in sounding humidity measuring instrument is illustrated in figure 3 under solar radiation, during zero represents Real Atmosphere
Hydrone, ● represent the elevated air molecule of temperature,Represent the vapour molecule in air.
Aerial q=h × (t highw-t∞), Q=h × A (tw-t∞)=qA
The heat exchanged within the unit interval between the surface of solids and fluid that wherein q refers to as unit area, referred to as hot-fluid
Density, twAnd t∞The respectively temperature of surface of solids temperature and fluid, A is wall surface area, and Q is the heat transfer on area A, h
Referred to as surface convective heat-transfer coefficient.
When solar radiation, solar radiation source and wetness sensor surface heat convection, solar flux and humidity sensor
The heat q that the device surface unit time exchanges1Become big, and then cause wetness sensor surface heat transfer Q1Become big, air air-flow with
Wetness sensor surface heat convection, the heat q that air air-flow is exchanged with the wetness sensor surface unit interval2It is significantly less than q1,
Air-flow molecule can offset a part of heat with humidity sensor collision, but the solar radiation absorbed much smaller than humidity sensor
Heat, so as to cause wetness sensor surface temperature to raise, institute's measuring moisture is partially dry.Wetness sensor surface is placed in 3 in figure
The temperature T of wetness sensor surface after the measurable temperature rising of array temperature sensor0；Humidity sensor surrounding is by support branch
The second temperature sensor for rising can measure the temperature value T in Real Atmosphere1, sounding humidity measuring instrument is by data acquisition unit
The single-chip microcomputer in the first data processing unit is transferred data to, single-chip microcomputer recalls the relation of temperature and saturation vapour pressure, passes through
Software and hardware combining can effectively be eliminated to solar radiation error.
In order to solve the partially dry error of moisture measurement that solar radiation causes, as shown in figure 4, one kind of the present utility model can disappear
Except the sounding humidity measuring method of solar radiation error, comprise the following steps：
(1) the relative humidity RH under solar radiation heating condition is measured using humidity sensor0, humidity sensor upper surface
The first temperature sensor measure the temperature T of humidity sensor upper surface under solar radiation heating condition0, and by data acquisition
Unit is transferred to the first data processing unit；
(2) first data processing units recall the relation curve of the saturation vapour pressure and temperature for prestoring；I.e. STM32ZGT6 is mono-
Piece machine recalls the relation curve of the saturation vapour pressure and temperature for prestoring；
(3) relation curve in step 2 obtains T0Corresponding saturation vapour pressure P0；
(4) according to relative humidity formula：Obtain
Therefore the actual water vapor pressure P in airr=RH0×P0；
(5) second temperature sensor located at humidity sensor surrounding measures the actual temperature in atmospheric environment, and passes through
Data acquisition unit is transferred to the first data processing unit, and the first data processing unit is averaged to it and obtains temperature T1；
(6) first data processing units obtain temperature T by saturation vapour pressure and temperature relation1Corresponding saturation vapour
Pressure P1；
(7) revised rh value RH is obtained by relative humidity formula0'：
(8) first data processing units are by revised rh value RH0' be sent to by the first wireless communication unit
Ground based terminal unit.
The above method can be completed using the sounding humidity measuring instrument in the utility model.
In sum：
1. the utility model humidity sensor employs 1 array temperature sensor and 4 spherical temperature sensors,
Array temperature sensor can be under shoot the sun radiation on the wetness sensor surface wetness sensor surface temperature value, the spy
Four spherical temperature sensors that empty humidity sensor surrounding is propped for support, can survey temperature actual in accurate measurement atmospheric environment
Degree；
2. the temperature sensor that the utility model is used is fitted with protective cover, is effectively improved solar radiation and rainwater to temperature
Spend the influence of measurement；
3. the data transfer in the utility model uses big dipper module and GPS module, is available for user to select.The Big Dipper covers model
Enclose big, navigator fix can be combined with communication；
4. moisture signal Acquisition Circuit of the present utility model uses multi-resonant oscillating circuit, simple structure, while having error
The characteristics of small, strong antijamming capability, accurate measurement；
5. the utility model is combined method and eliminates solar radiation error using software and hardware, reduces solar radiation partially dry
The cost of error correction, market application value is big；
6. the utility model carries out data processing using the STM32407ZGT6 single-chip microcomputers of 32 and solar radiation error is mended
Repay, the working frequency of the single-chip microcomputer is 168MHZ, the internal memory of 1024K and the SRAM of 192KB, and speed is fast, and real-time is good, reduces
Delay time error.
7. the utility model proposes a kind of sounding humidity measuring instrument and method for eliminating solar radiation error, in height
Especially solar radiation error amendment field has very big market prospects to empty humidity field of detecting.
The above method can be using the sounding humidity measuring instrument for eliminating solar radiation error of the present utility model come complete
Into.
General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the utility model spirit and scope are not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed the utility model.The utility model
Claimed scope is by appending claims and its equivalent thereof.
Claims (8)
1. a kind of sounding humidity measuring instrument for eliminating solar radiation error, it is characterised in that：Including environmental detection unit, number
According to collecting unit, the first data processing unit, the first wireless communication unit and ground based terminal unit；The environmental detection unit bag
Humidity sensor is included, the upper surface of humidity sensor is provided with the first temperature sensor, and its surrounding is at least provided with a second temperature
Sensor, second temperature sensor is propped by support, and one end of support is connected with humidity sensor, the other end of support and second
Temperature sensor is connected；The input of the data acquisition unit respectively with humidity sensor, the first temperature sensor and second
The output end of temperature sensor is connected；First data processing unit is located at data acquisition unit and the first wireless communication unit
Between；The ground based terminal unit includes the second wireless communication unit and the second data processing unit that are connected with each other, the second nothing
Wireless connection between line communication unit and the first wireless communication unit.
2. a kind of sounding humidity measuring instrument for eliminating solar radiation error according to claim 1, it is characterised in that：
First temperature sensor is array temperature sensor；Second temperature sensor is ball-type temperature sensor；The support
Material be aluminium, the reflectivity of aluminium is more than 90%.
3. a kind of sounding humidity measuring instrument for eliminating solar radiation error according to claim 1, it is characterised in that：
The upper surface of the humidity sensor is provided with first temperature sensor, and its surrounding lays four second temperature sensors.
4. a kind of sounding humidity measuring instrument for eliminating solar radiation error according to claim 1, it is characterised in that：
Protective cover is equipped with first temperature sensor and second temperature sensor.
5. a kind of sounding humidity measuring instrument for eliminating solar radiation error according to claim 1, it is characterised in that：
The humidity sensor include from bottom to up according to lamination set basalis, the first insulating barrier, zone of heating, the second insulating barrier, under
Electrode layer, humidity sensing layer, porous upper electrode layer and top screen layer.
6. a kind of sounding humidity measuring instrument for eliminating solar radiation error according to claim 1, it is characterised in that：
The data acquisition unit includes A/D sample circuits and multi-resonant oscillating circuit；The input of the A/D sample circuits respectively with respectively
The output end of temperature sensor is connected；The input of multi-resonant oscillating circuit is connected with the output end of humidity sensor；A/D sampling electricity
The output end of road and multi-resonant oscillating circuit is connected with the first data processing unit；First data processing unit includes first
Microprocessor chip；Second data processing unit includes the second microprocessor chip.
7. a kind of sounding humidity measuring instrument for eliminating solar radiation error according to claim 6, it is characterised in that：
First wireless communication unit includes the first Beidou communication module and the GPS that are connected with first microprocessor chip respectively
Module；Second wireless communication unit includes the second Beidou communication module for being connected with the second microprocessor chip respectively and the
Two GPS modules；The first Beidou communication module and the second Beidou communication module wireless connection；First GPS module and the 2nd GPS
Module wireless connection.
8. a kind of sounding humidity measuring instrument for eliminating solar radiation error according to claim 1, it is characterised in that：
Also include the power module for powering, the power module includes the mu balanced circuit that dc source is connected with dc source, point
Analog power, reference voltage source and the digital power not being connected with mu balanced circuit；Analog power is used to be supplied for environmental detection unit
Electricity；Reference voltage source is used to be powered for data acquisition unit；Digital power is used to be powered for the first data processing unit.
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| CN201621296001.6U CN206235612U (en) | 2016-11-30 | 2016-11-30 | A kind of sounding humidity measuring instrument for eliminating solar radiation error |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621296001.6U CN206235612U (en) | 2016-11-30 | 2016-11-30 | A kind of sounding humidity measuring instrument for eliminating solar radiation error |
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| CN206235612U true CN206235612U (en) | 2017-06-09 |
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ID=58981447
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526085A (en) * | 2016-11-30 | 2017-03-22 | 南京信息工程大学 | Sounding humidity measurement device and method capable of eliminating solar radiation errors |
-
2016
- 2016-11-30 CN CN201621296001.6U patent/CN206235612U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526085A (en) * | 2016-11-30 | 2017-03-22 | 南京信息工程大学 | Sounding humidity measurement device and method capable of eliminating solar radiation errors |
| CN106526085B (en) * | 2016-11-30 | 2019-02-01 | 南京信息工程大学 | A kind of sounding humidity measuring instrument that eliminating solar radiation error and method |
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Granted publication date: 20170609 Effective date of abandoning: 20190201 |
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