CN109143173A - A kind of multi-channel microwave radiometer receiver high stable constant temperature structure - Google Patents
A kind of multi-channel microwave radiometer receiver high stable constant temperature structure Download PDFInfo
- Publication number
- CN109143173A CN109143173A CN201811172111.5A CN201811172111A CN109143173A CN 109143173 A CN109143173 A CN 109143173A CN 201811172111 A CN201811172111 A CN 201811172111A CN 109143173 A CN109143173 A CN 109143173A
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- Prior art keywords
- high stable
- heat
- constant temperature
- microwave radiometer
- cavity
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- 238000009413 insulation Methods 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 15
- 239000004411 aluminium Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- 229920006602 NBR/PVC Polymers 0.000 claims description 4
- 229920006335 epoxy glue Polymers 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000002277 temperature effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radiation Pyrometers (AREA)
Abstract
The invention discloses a kind of multi-channel microwave radiometer receiver high stable constant temperature structures, the structure passes through the bidirectional temperature control connection structure between high stable heat-insulated cavity, the flat heat-insulated air duct of miniaturization and heat-insulated cavity and air duct, the temperature controlled environment of a high stable is provided for the multi-channel microwave radiometer receiver, ensure that the high sensitivity and requirements for high precision of meteorological observation.And by reasonably select material, its best-of-breed functionality characteristic is realized.The present invention is light-weight, small in size, and manufacturing cost is low, easy to maintenance.
Description
Technical field
The invention belongs to microwave radiometer technologies, meteorological observation technology, and in particular to a kind of multi-channel microwave radiometer connects
Receipts machine high stable constant temperature structure.
Background technique
Multi-channel microwave radiometer is operate on the highly sensitive radio receiving equipment in broadband of microwave band, is applied to meteorology
Observation.It receives and measures the faint radiation of the moisture of different height in air, oxygen gas component, to judge atmospheric temperature, wet
It writes music line.Highly sensitive (temperature resolution), high absolute accuracy and good long-term working stability are examination microwave spokes
Penetrate the main indicator of meter performance.In order to realize the high-performance of multi-channel microwave radiometer receiver, it is necessary to have its structure type
There is the temperature persistance of high stable, eliminate the influence of temperature drift, thermal noise characteristic is made not change with ambient temperature and rise and fall.Structure
Compact, lightweight, maintainability are good, while requiring to reduce mechanical processing difficulty and cost.
Summary of the invention
Technical problems to be solved
In order to which the constant temperature effect for solving the prior art is bad, the present invention proposes that a kind of multi-channel microwave radiometer receiver is high
Stablize constant temperature structure.
Technical solution
A kind of multi-channel microwave radiometer receiver high stable constant temperature structure, it is characterised in that including high stable heat-insulated cavity
With the flat heat-insulated air duct of miniaturization；The high stable heat-insulated cavity is cavity of the aluminium sheet through sheet-metal formed, in the interior table of cavity
Face forms insulating layer using six face bonding and thermal insulation plates, and cold plate is equipped on the insulation board of lower surface, installs microwave device on cold plate,
It wherein opens on the lower surface of cavity and the insulation board on lower surface there are two square hole, cold plate counterparty's hole location is equipped with convex
Platform；The flat heat-insulated air duct of miniaturization is by radiator, the first centrifugal blower, the second centrifugal blower and package radiator
Angle Support composition；One is connected to by M4 screw+insulation screw between high stable heat-insulated cavity and the flat heat-insulated air duct of miniaturization
It rises, the stud that one end of the insulation screw is M5, which is screwed into radiator；The other end is screw hole, which is embedded in the steel of ST4
Silk swivel nut, matches with the M4 screw on cold plate；The boss of cold plate connects with the same size heating fin of insertion on a heat sink
Touching controls the voltage of heating fin, heating fin is then converted to a temperature by acquiring the actual temperature of cold plate
The two-way controlled delivery of heat is realized in the adjusting of degree.
The insulation board is NBR/PVC, with a thickness of 10mm.
The radiator is the substrate of thickness 8mm.
The centrifugal blower uses the RL48-19/14 of ebm company of Germany.
The stud and steel-wire screw-socket of the insulation screw are coated with epoxy glue.
Beneficial effect
A kind of multi-channel microwave radiometer receiver high stable constant temperature structure proposed by the present invention, having the special feature that is:
1. environment temperature is greatly reduced to microwave radiometer receiver precision shadow in high stable heat-insulated cavity, good constant-temperature effect
It rings, is conducive to lifting system performance.
2. air-cooled structure miniaturization, flattening effect are good, radiating efficiency is high, with heat-insulated cavity be not directly connected realization every
Heat.
3. bidirectional temperature control connects, it is mounted between high stable heat-insulated cavity and air duct, is passed through by heating fin (TEC)
Double-direction Temperature adjusts the constant temperature requirement for realizing radiometer.
4. realizing that heating fin is connected with respective seperated close reinforcing due to using self-control insulated screw.
5. radiator uses aluminium profile structure, shell uses 1.5mm thickness aluminium sheet sheet-metal formed, and difficulty of processing is small at low cost.
6. maintenance accessi bility is good, maintenance recovery time is short.
Detailed description of the invention
Fig. 1 multi-channel microwave radiometer receiver high stable constant temperature structure figure
Fig. 2 high stable heat-insulated cavity structure chart
Fig. 3 minimizes flat air channel structure figure
Fig. 4 bidirectional temperature control connection structure diagram
Fig. 5 is insulated bolt structure figure
Fig. 6 multi-channel microwave radiometer receiver constant temperature tests integrated curved figure
Fig. 7 multi-channel microwave radiometer receiver constant temperature test detail developed curve figure
1- outer housing, the first insulation board of 2-, the second insulation board of 3-, 4- third insulation board, the 4th insulation board of 5-, 6- microwave device
Part, 7- panel, 8- cold plate, 9- angle Support, the first centrifugal blower of 10-, the second centrifugal blower of 11-, 12- radiator, 13- heating system
Cold (TEC), 14- insulation screw, 15- high stable heat-insulated cavity, the flat air duct of 16- miniaturization, 17- steel-wire screw-socket.
Specific embodiment
Now in conjunction with embodiment, attached drawing, the invention will be further described:
Multi-channel microwave radiometer receiver constant temperature structure of the invention, for its architectural characteristic and constant temperature requirement, to it
Insulation construction, air-cooled structure and its connection structure are designed and optimize, using following scheme: the present invention is mainly by three parts group
At that is, the bidirectional temperature control between high stable heat-insulated cavity, the flat heat-insulated air duct of miniaturization and heat-insulated cavity and air duct connects knot
Structure is shown in attached drawing 1.
1, high stable (temperature value is constant all the time at ± 0.034 DEG C) heat-insulated cavity
The present invention forms high stable heat-insulated cavity through sheet-metal formed in terms of heat preservation property, using the aluminium sheet of 1.5mm thickness, should
Cavity inner surface forms insulating layer using six face bonding and thermal insulation plate NBR/PVC (10mm is thick) (see attached drawing 2), it is ensured that high stable heat preservation
The internal temperature of cavity is stablized, to reduce influence of the environment temperature to multi-channel microwave radiometer receiver precision.
In addition, microwave device has mounting flange in the heat-insulated cavity, it is ensured that it effectively connect with cold plate, convenient for heat
Amount conduction；The air-gap between microwave device and cold plate is made up by heat conductive pad, is increased its contact area, is guaranteed internal circuit
High stable thermostatic characteristics.
2, the flat heat-insulated air duct (260*233*110mm) is minimized
The present invention uses air blast cooling heat-removal modalities.By the radiator of substrate 8mm thickness, 2 centrifugal blower RL48-19/14
(German ebm company), and the independent flat heat-insulated air duct (see attached drawing 3) of miniaturization of angle Support composition of package radiator, and
It is separated with high stable heat-insulated cavity, in extremely limited installation space, realizes efficient heat dissipation performance.
3, bidirectional temperature control connection structure
Bidirectional temperature control connection structure is arranged between high stable heat-insulated cavity and the flat air duct of miniaturization in the present invention.Gao Wen
Determine heat-insulated cavity and minimize flat air duct to link together by 6 insulation screws, guarantees high stable heat-insulated cavity and surrounding
The heat preservation and insulation of environment；Heating fin is installed between high stable heat-insulated cavity and the flat air duct of miniaturization, passes through 6
The screw (standard component) of M4 is screwed into insulation screw, realizes that heating fin is connected with respective seperated close reinforcing.By to adding
Refrigeration heat piece (TEC) high-precision temperature adjustment (acquisition cold plate actual temperature, be compared with temperature is required, output control voltage,
Power driving circuit is controlled, the voltage of heating fin is controlled, heating fin is then converted to the tune of a temperature
Section), realize the two-way controlled delivery of heat, it is ensured that its -40 DEG C~+55 DEG C wide scope high stable constant temperature effects (see attached drawing 4).
Multi-channel microwave radiometer receiver constant temperature structure of the invention, is shown in attached drawing 1.It is mainly by high stable incubation cavity
Bidirectional temperature control connection structure three parts composition between body, the flat heat-insulated air duct of miniaturization and heat-insulated cavity and air duct, specifically
Embodiment is as follows:
High stable constant temperature cavity (see attached drawing 2)
(1) high stable heat-insulated cavity is formed through sheet-metal formed using the aluminium sheet of 1.5mm thickness, which uses six faces
Bonding and thermal insulation plate NBR/PVC (10mm is thick) forms insulating layer；
(2) contact area for increasing microwave power device and cold plate, makes device air-gap up by heat conductive pad, and tight with screw
Gu on cold plate；
(3) insulation board with gum is selected to be bonded on six faces in the cavity.
Minimize flat heat-insulated air duct (see attached drawing 3)
(1) it is dissipated by the radiator of substrate 8mm thickness, 2 centrifugal blower RL48-19/14 (German ebm company), and package
The independent flat heat-insulated air duct of miniaturization of the angle Support composition of hot device；
(2) platypelloid type centrifugal blower is used, and designs independent ventiduct, the timely row of heat when guaranteeing microwave channel overheat
Out.
Bidirectional temperature control connection structure (see attached drawing 4)
(1) 9 epoxy glass fabric of diameter ￠ processing insulation screw (self-control) is selected, one end of screw is the stud of M5, the end
Epoxy glue is smeared when being screwed into radiator (processing 9.6 depth of counter sink ￠ at its corresponding screw thread is 1)；The other end is screw hole,
The end is embedded in the steel-wire screw-socket (applying epoxy glue when installation outside steel-wire screw-socket) of ST4；
(2) contact surface of cold plate and radiator and heating fin, processing roughness is 1.6, and smears heat-conducting silicone grease.
(3) insulation screw (Fig. 5 is shown in self-control) is screwed by the screw (standard component) of 6 M4, realizes heating fin and each
It is connected from seperated close reinforcing.
The high stable constant temperature cavity of multi-channel microwave radiometer receiver structure of the invention and the flat air duct of miniaturization are curved
Corner fittings etc., all uses 1.5mm thickness aluminium sheet sheet-metal formed, and full metal jacket ground connection prevents accumulation electrostatic high-pressure electric discharge, it is ensured that manpower
Accessible position is without high pressure.Meanwhile the difficulty of processing and cost of structural member are greatly reduced.
Multi-channel microwave radiometer receiver structure use high stable heat-insulated cavity, the flat heat-insulated air duct of miniaturization, with
And after the bidirectional temperature control connection structure between heat-insulated cavity and air duct, realizes high stable constant temperature effect, see attached drawing 6,7.
Wherein, the constant temperature of multi-channel microwave radiometer receiver tests integrated curved figure, sees attached drawing 5.Red constant temperature in figure
Curve is the test data curve of benchmark test point, other color lines are auxiliary observation parameter curve.Abscissa unit is 2 seconds,
That is readings " 1000 " corresponding 2000 seconds testing times；Ordinate unit is DEG C, i.e. corresponding 40 DEG C of readings " 40 ".It is red permanent from figure
Warm curve can see, and the beginning section temperature of thermostatic process is extremely short from the stable time used is oscillated to, can be within 7 minutes
Reach stable constant temperature, and the beginning section temperature oscillation amplitude of thermostatic process is also very small, i.e., oscillation amplitude is within ± 3 DEG C.
Secondly, the constant temperature test detail developed curve figure of multi-channel microwave radiometer receiver, is shown in attached drawing 6.It is red in figure
Constant temperature curve is that the details of attached drawing 5 is unfolded, and the unit of abscissa and ordinate remains unchanged.It can by constant temperature curve red in figure
See, in the past from readings " 200 " (i.e. 200 × 2 seconds=400 seconds corresponding), temperature value is constant within ± 0.068 DEG C for abscissa；
After readings " 200 " (i.e. 200 × 2 seconds=400 seconds corresponding), temperature value is constant within ± 0.034 DEG C；Moreover, to surveying
The readings " 4000 " (i.e. corresponding 4000 × 2 seconds=8000 seconds) for trying finish time, up in 2 hours or more testing times, temperature
Angle value is constant all the time within ± 0.034 DEG C, and constant temperature is stable and reliable in work.
The high stable constant temperature structure of multi-channel microwave radiometer receiver of the invention, at all seasons various environment temperatures
The constant temperature of high stable can be fast implemented down, met annual uninterrupted constant temperature work requirements, guaranteed that multi-channel microwave radiometer connects
The receipts machine measurement accuracy that meteorologic parameter is observed under various temperature environments.
Claims (5)
1. a kind of multi-channel microwave radiometer receiver high stable constant temperature structure, it is characterised in that including high stable heat-insulated cavity
(15) and the flat heat-insulated air duct (16) of miniaturization；The high stable heat-insulated cavity (15) is cavity of the aluminium sheet through sheet-metal formed,
Insulating layer is formed using six face bonding and thermal insulation plates in the inner surface of cavity, is equipped with cold plate (8) on the insulation board of lower surface, cold plate
(8) microwave device (6) are installed on, wherein open that there are two square holes on the lower surface of cavity and insulation board (3) on lower surface, it is cold
Plate (8) counterparty's hole location is equipped with boss；The flat heat-insulated air duct of the miniaturization is by radiator (12), the first centrifugal blower
(10), angle Support (9) composition of the second centrifugal blower (11) and package radiator；High stable heat-insulated cavity (15) and miniaturization
It is linked together between flat heat-insulated air duct (16) by M4 screw+insulation screw, one end of the insulation screw is M5's
Stud, the end are screwed into radiator；The other end is screw hole, which is embedded in the steel-wire screw-socket (17) of ST4, the M4 spiral shell with (8) on cold plate
Nail matches；The boss of cold plate (8) is contacted with the same size heating fin (13) being embedded on radiator (12), passes through acquisition
The actual temperature of cold plate (8) controls the voltage of heating fin (13), and heating fin (13) is then converted to a temperature
The two-way controlled delivery of heat is realized in the adjusting of degree.
2. a kind of multi-channel microwave radiometer receiver high stable constant temperature structure according to claim 1, it is characterised in that
The insulation board is NBR/PVC, with a thickness of 10mm.
3. a kind of multi-channel microwave radiometer receiver high stable constant temperature structure according to claim 1, it is characterised in that
The radiator is the substrate of thickness 8mm.
4. a kind of multi-channel microwave radiometer receiver high stable constant temperature structure according to claim 1, it is characterised in that
The centrifugal blower uses the RL48-19/14 of ebm company of Germany.
5. a kind of multi-channel microwave radiometer receiver high stable constant temperature structure according to claim 1, it is characterised in that
The stud and steel-wire screw-socket of the insulation screw are coated with epoxy glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172111.5A CN109143173A (en) | 2018-10-09 | 2018-10-09 | A kind of multi-channel microwave radiometer receiver high stable constant temperature structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172111.5A CN109143173A (en) | 2018-10-09 | 2018-10-09 | A kind of multi-channel microwave radiometer receiver high stable constant temperature structure |
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| Publication Number | Publication Date |
|---|---|
| CN109143173A true CN109143173A (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811172111.5A Pending CN109143173A (en) | 2018-10-09 | 2018-10-09 | A kind of multi-channel microwave radiometer receiver high stable constant temperature structure |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900768A (en) * | 2009-05-27 | 2010-12-01 | 中国科学院空间科学与应用研究中心 | Multi-channel microwave radiometer system control device and control method |
| CN102931818A (en) * | 2012-10-24 | 2013-02-13 | 广东美的暖通设备有限公司 | Frequency conversion module heat abstractor and air conditioner |
| CN204314453U (en) * | 2014-12-10 | 2015-05-06 | 中国电子科技集团公司第二十二研究所 | A kind of microwave radiometer air duct heat dissipating device |
| US20180058945A1 (en) * | 2015-12-22 | 2018-03-01 | Limited Liability Company "Rtm Diagnostics" | Microwave radiometer |
-
2018
- 2018-10-09 CN CN201811172111.5A patent/CN109143173A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900768A (en) * | 2009-05-27 | 2010-12-01 | 中国科学院空间科学与应用研究中心 | Multi-channel microwave radiometer system control device and control method |
| CN102931818A (en) * | 2012-10-24 | 2013-02-13 | 广东美的暖通设备有限公司 | Frequency conversion module heat abstractor and air conditioner |
| CN204314453U (en) * | 2014-12-10 | 2015-05-06 | 中国电子科技集团公司第二十二研究所 | A kind of microwave radiometer air duct heat dissipating device |
| US20180058945A1 (en) * | 2015-12-22 | 2018-03-01 | Limited Liability Company "Rtm Diagnostics" | Microwave radiometer |
Non-Patent Citations (1)
| Title |
|---|
| 李亚歌: "辐射计恒温控制***研究", 《中国优秀硕士学位论文全文数据库 (工程科技Ⅱ辑)》 * |
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Application publication date: 20190104 |
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