CN110186573A - A kind of area blackbody radiation source - Google Patents
A kind of area blackbody radiation source Download PDFInfo
- Publication number
- CN110186573A CN110186573A CN201910631832.6A CN201910631832A CN110186573A CN 110186573 A CN110186573 A CN 110186573A CN 201910631832 A CN201910631832 A CN 201910631832A CN 110186573 A CN110186573 A CN 110186573A
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- Prior art keywords
- radiator
- radiation source
- blackbody radiation
- shell
- area blackbody
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- 230000005457 Black-body radiation Effects 0.000 title claims abstract description 44
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 239000010949 copper Substances 0.000 claims abstract description 11
- 230000005855 radiation Effects 0.000 claims abstract description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 238000007743 anodising Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/80—Calibration
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Abstract
The present invention relates to a kind of area blackbody radiation sources, including shell and the circular radiation body being installed in the shell, the radiator is fabricated using oxygen-free copper, multiple inner recess towards the radiator are offered on the radiating surface of the radiator and mutually concentric annulus, the section of any one annulus is V-groove, and the groove depth of the V-groove is 1.5~2.0mm.The heating conduction of oxygen-free copper is very excellent, it can effectively improve the temperature uniformity of radiator using the manufacture that oxygen-free copper carries out radiator, and when groove depth is in the range of 1.5mm~2.0mm, the temperature uniformity of radiator is also very excellent, thus, disclosed in this invention area blackbody radiation source ensure that the temperature uniformity of irradiator surface, to improve the accuracy and reliability of infrared calibration.
Description
Technical field
The present invention relates to infrared radiation measurement technical field, in particular to a kind of face source especially suitable for low temperature environment is black
Body radiation source.
Background technique
A kind of radiation source of the area blackbody radiation source as standard is widely used in infrared radiation temperature measurement device, infrared heat
As instrument infrared calibration in, with the rapid development of infrared technique, infrared remote sensing, detection and imaging technique have obtained increasingly wider
General application, also to the stated accuracy of area blackbody radiation source and resolution ratio, more stringent requirements are proposed at the same time.
Other than needing to have high emissivity, the temperature uniformity of area blackbody radiation source is also an important technology
Index, if the temperature uniformity of area blackbody radiation source cannot ensure, then its radiation characteristic will also be affected, thus
Influence the accuracy of infrared calibration.
Summary of the invention
The object of the present invention is to provide a kind of area blackbody radiation sources, and the temperature can guarantee area blackbody radiation source is equal
Even property, to improve the accuracy of infrared calibration.
In order to achieve the above objectives, area blackbody radiation source provided by the invention, including shell and be installed in the shell
Circular radiation body, the radiator is fabricated using oxygen-free copper, and multiple directions are offered on the radiating surface of the radiator
The inner recess of the radiator and mutually concentric annulus, the section of any one annulus is V-groove, the V-groove
Groove depth be 1.5~2.0mm.
Preferably, the groove angle of the V-groove is 50 °~70 °, and is coated with dope layer on the radiating surface of the radiator.
Preferably, the shell includes front panel, rear panel, upper cover and lower cover, and it is defeated that the front panel offers radiation
Portal, interface is provided on the rear panel, the radiator is fixed on mounting plate, and the mounting plate passes through connection knot
Structure forms general frame after being connected respectively with the front panel and the rear panel, the upper cover and the lower cover buckle set and connect
In on the general frame.
Preferably, the connection structure is the connecting bar being symmetricly set at left and right sides of the mounting plate, the connection
Rib extends along the front-rear direction of the shell, and the front end of the connecting bar is connected with the front panel, rear end with it is described
Rear panel is connected.
Preferably, be provided with insulating layer on the contact surface of the radiator and the mounting plate, the mounting plate with it is described
The contact position of upper cover and the lower cover is provided with insulating layer, and is also provided with insulating layer on the medial surface of the shell.
It preferably, further include being set to the enclosure interior and surface is coated with the protection sleeve of insulating layer, the protection
The front end of sleeve is fixed on the front panel, and rear end is close to the radiator, the radiant output hole, protection sleeve and institute
State radiator coaxial arrangement.
Preferably, the radius of the protection sleeve is not less than the radius of the radiator, and the length of the protection sleeve
Ratio with itself radius is 2.
Preferably, the protection sleeve is the aluminium alloy sleeve barrel that black anodizing processing is passed through on surface.
Preferably, temperature control component is additionally provided in the shell, the temperature control component includes the back side with the radiator
The heating sheet for being bonded contact, the temperature sensor that is arranged between the heating sheet and the radiator and with the heating sheet
The temperature control panel being connected with the temperature sensor, the temperature control panel are installed on the rear panel, the heating sheet
The pressure plate being arranged on the mounting plate is pressed on the radiator, and between the heating sheet and the pressure plate also
It is provided with insulating layer, is also equipped with insulating layer in the pressure plate one side opposite with the rear panel.
Preferably, the shell is aluminium alloy seal casinghousing, and the heating sheet is silicon rubber heating sheet.
The heating conduction of oxygen-free copper is very excellent, can effectively improve radiator using the manufacture that oxygen-free copper carries out radiator
Temperature uniformity, and when groove depth is in the range of 1.5mm~2.0mm, the temperature uniformity of radiator is also very excellent,
As a result, disclosed in this invention area blackbody radiation source ensure that the temperature uniformity of irradiator surface, to improve red
The accuracy and reliability of outer calibration.
Detailed description of the invention
Fig. 1 be disclosed in this invention area blackbody radiation source configuration schematic diagram；
Fig. 2 be disclosed in this invention panel blackbody radiation source along the axis of radiator longitudinally split after structural representation
Figure.
Wherein, 1 is radiant output hole, and 2 be front panel, and 3 be protection sleeve, and 4 be insulating layer, and 5 be upper cover, and 6 be temperature control
Making sheet, 7 be rear panel, and 8 be pressure plate, and 9 be temperature sensor, and 10 be connecting bar, and 11 be mounting plate, and 12 be radiator, 13
It is interface for lower cover, 14,15 be heating sheet.
Specific embodiment
Core of the invention is that the temperature for a kind of area blackbody radiation source, can guarantee area blackbody radiation source is uniform
Property, to improve the accuracy of infrared calibration.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Please refer to attached drawing 1 and attached drawing 2, the area blackbody radiation source disclosed in the present embodiment, including shell and rounded
Radiator 12, the one side of radiator 12 is radiating surface, and another side is the back side of radiator 12, and in the embodiment of the present invention
In, radiator 12 is fabricated using oxygen-free copper, offered on the radiating surface of radiator 12 multiple surfaces from radiator 12 to
The annulus of 12 inner recess of radiator, multiple annulus are arranged concentrically, and as shown in fig. 1, and the section of each annulus is V
Type groove, the groove depth of V-groove are 1.5mm~2.0mm.
It is more managed it will be appreciated to those of skill in the art that V-groove concentric structure can guarantee that radiator 12 has
The emissivity thought, oxygen-free copper have extremely low resistance and extremely excellent heating conduction, manufacture radiator 12 using oxygen-free copper
The temperature uniformity of radiator 12 can be inherently effectively improved in terms of material, and is found after study, on radiator 12
The increase of approximately linear is presented with the increase of groove depth for the depth of groove body, emissivity and processing convenience is comprehensively considered, by V
The groove depth of type groove selects in the range of 1.5mm~2.0mm, can not only guarantee the uniformity of 12 bulk temperature of radiator, but also energy
Enough guarantee the emissivity with higher of radiator 12, this provides for improved the area blackbody radiation source disclosed in the present embodiment is infrared
The accuracy and reliability of calibration.At the same time, which can also effectively improve the processing of radiator 12 just
Benefit.
After study, it is found by the applicant that its performance indexes is the most excellent when the groove depth of V-groove is designed as 1.7mm,
Therefore recommend the groove depth of V-groove being designed as 1.7mm in the embodiment of the present invention.
In order to further increase the emissivity and processing convenience of radiator 12, the slot angle of V-groove in the present embodiment
It is recommended as 50 °~70 °, preferred slot angle is 60 °, needs to be illustrated, and in the present embodiment, so-called slot angle is specific
Refer to the angle between two sides of V-groove.Certainly, it can also further spray paint layer mention on the radiating surface of radiator 12
The emissivity of high radiator 12, the dope layer are preferably the infrared black matrix paint of model OKMO6670.
Fig. 1 and Fig. 2 are please referred to, in the area blackbody radiation source disclosed in the present embodiment, shell specifically includes front panel
2, rear panel 7, upper cover 5 and lower cover 13 offer radiant output hole 1 on front panel 2, and radiant output hole 1 should be with radiator
12 are correspondingly arranged, and one or more interfaces 14 are provided on rear panel 7, and interface 14 is preferably aviation plug, interface
14 effect is the transmission of progress electric energy and signal, and radiator 12 passes through screw (preferably along the circumferential direction uniformly distributed 6
) be fixed on mounting plate 11, and guarantee that the center of radiator 12 is on the center line of panel blackbody radiation source, it installs
Plate 11 forms a general frame, upper cover 5 and lower cover 13 after being connected respectively with front panel 2 and rear panel 7 by connection structure
Button sets and is connected on general frame.
It will be appreciated to those of skill in the art that mounting plate 11 can be realized and front panel 2 by a variety of connection structures
Connection between rear panel 7, for example, connection structure can be buckle or other adapters, in the present embodiment, connection knot
Structure is the connecting bar 10 for being symmetricly set on 11 left and right sides of mounting plate, and as shown in fig. 1, connecting bar 10 is along the front and back of shell
Direction extends, and the front end of connecting bar 10 is connected with front panel 2, and the rear end of connecting bar 10 is connected with rear panel 7, upper cover
5 and lower cover 13 be located on general frame after be fixed by screws on general frame, finally by front panel 2, rear panel 7,
Upper cover 5 and lower cover 13 form the sealing shell (blow-by at radiant output hole 1) of area blackbody radiation source.
It needs to be illustrated, in the embodiment of the present invention, offering 1 panel of radiant output hole is front panel 2, with front
An opposite panel of plate 2 is rear panel 7, and direction representated by front panel 2 and 7 line of centres of rear panel is front-rear direction, when
People stands towards front panel 2, and left-hand side is the left side of area blackbody radiation source, and right-hand side is the right of area blackbody radiation source.
The infrared equipment that some astronomic stations on the South Pole and high mountain are frequently used in due to area blackbody radiation source is fixed
The quasi- aspect of calibration, therefore it must have the ability started at extremely low temperatures with work well, for this purpose, disclosed in the present embodiment
Area blackbody radiation source in, insulating layer 4, mounting plate 11 and upper cover 5 are provided on the contact surface of radiator 12 and mounting plate 11
The contact position of lower cover 13 is provided with insulating layer 4, and is also equipped with insulating layer 4 on the medial surface of shell, to avoid low temperature
Internal structure is produced bigger effect.Insulating layer 4 can be heat-preservation cotton or other thermal insulation materials.
Further, temperature control component is additionally provided in shell, temperature control component specifically includes heating sheet 15, temperature sensing
Device 9 and temperature control panel 6, as shown in Figures 1 and 2, heating sheet 15 are contacted with the fitting of the back side of radiator 12, temperature sensing
Device 9 is arranged between heating sheet 15 and radiator 12, and is located in the groove that 12 back side of radiator is opened up, 15 He of heating sheet
Temperature sensor 9 is connected by wired or wireless mode with temperature control panel 6, and temperature control panel 6 passes through four copper post installations
On plate 7 below, its role is to receive the temperature of the return of temperature sensor 9, and the heating function calculated to the output of heating sheet 15
Rate.The pressure plate 8 that heating sheet 15 is connected on mounting plate 11 is pressed on radiator 12, and heat loss in order to prevent,
It is also provided with insulating layer 4 between heating sheet 15 and pressure plate 8, is also provided with heat preservation in the one side opposite with rear panel 7 of pressure plate 8
Layer 4, certainly, pressure plate 8 can also be used thermal insulation material and be made, further, can also be opposite with heating sheet 15 in pressure plate 8
Reflecting layer is provided on one side, to prevent the heat of heating sheet from radiating backward.
Heating sheet 15 in temperature control component uses silicon rubber heating sheet, its advantage is that waterproof performance is good, fever is fast, temperature is equal
It is even, the thermal efficiency is high, good toughness, resist chemical, use temperature range is -62 DEG C~235 DEG C, fully meet radiator 12 plus
Heat needs, and temperature sensor 9 uses high-precision platinum resistor, and temperature control panel 6 can be using STM32 single-chip microcontroller as control core
Piece, with MOSFET all the way, (Metal-Oxide-Semiconductor Field-Effect Transistor OH is brilliant
Body pipe) drive heating sheet 15 to work, No. three temperature sensors 9 can read radiating surface, area blackbody radiation source chamber respectively
The temperature of inner and outer boundary's environment, wherein radiating surface temperature is used as feedback temperature and carries out PID temperature control to radiating surface.Temperature control
All electronic components in making sheet 6 are all low temperature resistant technical grade products, and whole plate is by refrigerator low-temperature test to guarantee low
Temperature is lower to be worked normally, and the power supply interface and control interface of temperature control panel 6 can be drawn by 12 needle aviation plugs from rear panel 7.
It can be seen that the area blackbody radiation source disclosed in above-described embodiment is applicable to low temperature or extremely low Wen Huan
Border, and the temperature of radiator 12 can be made to be maintained at set temperature range.
It further include being arranged inside housings in order to further increase the emissivity of area blackbody radiation source, in the present embodiment,
And surface is coated with the protection sleeve 3 of insulating layer 4, and the front end of protection sleeve 3 is fixed by screws on front panel 2, such as Fig. 1
Shown in, the through-hole around radiant output hole 1 protects sleeve 3 for fixed, protects the rear end of sleeve 3 very close to spoke
Beam 12, radiant output hole 1, protection sleeve 3 and radiator 12 are coaxially disposed, and after increasing protection sleeve 3, can effectively be mentioned
The emissivity of high area blackbody radiation source.
In the present embodiment, protection sleeve 3 is the aluminium alloy sleeve barrel that black anodizing processing is passed through on surface, protects sleeve
3 radius is not less than the radius of radiator 12, and the length of sleeve 3 and the ratio of itself radius is protected to take 2, can make in this way
The effective emissivity of area blackbody radiation source less protective case when result improve a lot, while making face source black body radiation
The topically effective emissivity in source is more evenly distributed.
Shell preferably uses rigidity stronger, light-weight aluminium alloy manufacture, certainly, for connecting front panel 2 and rear panel 7
Connecting rib aluminium alloy manufacture can also be used, upper cover 5 and lower cover 13 are two symmetrical metal plates that thin plate integrated punching is formed
Part, it may be convenient to dismantle, all outer surfaces of shell all pass through black anodizing processing, except the radiating surface of radiator 12
Outside, each position of enclosure interior is all covered with insulating layer 4, to guarantee that entire area blackbody radiation source can be at a lower temperature
Reliably working.
Area blackbody radiation source provided by the present invention is described in detail above.Specific case used herein
Principle and implementation of the present invention are described, the above embodiments are only used to help understand side of the invention
Method and its core concept.It should be pointed out that for those skilled in the art, not departing from the principle of the invention
Under the premise of, it can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the claims in the present invention
In protection scope.
Claims (10)
1. a kind of area blackbody radiation source, including shell and the circular radiation body (12) being installed in the shell, feature exists
In the radiator (12) is fabricated using oxygen-free copper, is offered on the radiating surface of the radiator (12) multiple towards institute
State the inner recess of radiator (12) and mutually concentric annulus, the section of any one annulus is V-groove, the V-type
The groove depth of slot is 1.5~2.0mm.
2. area blackbody radiation source according to claim 1, which is characterized in that the slot angle of the V-groove is 50 °~
70 °, and dope layer is coated on the radiating surface of the radiator (12).
3. area blackbody radiation source according to claim 1, which is characterized in that the shell includes front panel (2), back
Plate (7), upper cover (5) and lower cover (13), the front panel (2) offer radiant output hole (1), set on the rear panel (7)
It is equipped with interface (14), the radiator (12) is fixed on mounting plate (11), and the mounting plate (11) passes through connection structure
General frame, the upper cover (5) and the lower cover are formed after being connected respectively with the front panel (2) and the rear panel (7)
(13) button sets and is connected on the general frame.
4. area blackbody radiation source according to claim 3, which is characterized in that the connection structure is is symmetricly set on
The connecting bar (10) at left and right sides of mounting plate (11) is stated, the connecting bar (10) extends along the front-rear direction of the shell,
And the front end of the connecting bar (10) is connected with the front panel (2), rear end is connected with the rear panel (7).
5. area blackbody radiation source according to claim 4, which is characterized in that the radiator (12) and the mounting plate
(11) it is provided on contact surface insulating layer (4), the contact of the mounting plate (11) and the upper cover (5) and the lower cover (13)
Position is provided with insulating layer (4), and insulating layer (4) are also equipped on the medial surface of the shell.
6. according to area blackbody radiation source described in claim 3-5 any one, which is characterized in that further include be set to it is described
Enclosure interior and surface are coated with the protection sleeve (3) of insulating layer (4), the front end of protection sleeve (3) be fixed on it is described before
On panel (2), rear end is close to the radiator (12), the radiant output hole (1), protection sleeve (3) and the radiator
(12) it is coaxially disposed.
7. area blackbody radiation source according to claim 6, which is characterized in that the radius for protecting sleeve (3) is not small
Radius in the radiator (12), and the length of protection sleeve (3) and the ratio of itself radius are 2.
8. area blackbody radiation source according to claim 7, which is characterized in that the protection sleeve (3) is surface process
The aluminium alloy sleeve barrel of black anodizing processing.
9. according to area blackbody radiation source described in claim 3-5,7-8 any one, which is characterized in that in the shell also
It is provided with temperature control component, the temperature control component includes the heating sheet (15) contacted with the fitting of the back side of the radiator (12), sets
Set temperature sensor (9) between the heating sheet (15) and the radiator (12) and with the heating sheet (15) and institute
Temperature sensor (9) connected temperature control panel (6) is stated, the temperature control panel (6) is installed on the rear panel (7), institute
It states the pressure plate (8) that heating sheet (15) is arranged on the mounting plate (11) to be pressed on the radiator (12), and described
It is additionally provided between heating sheet (15) and the pressure plate (8) insulating layer (4), the pressure plate (8) and the rear panel (7) phase
Pair one side on be also equipped with insulating layer (4).
10. area blackbody radiation source according to claim 9, which is characterized in that the shell is aluminium alloy seal casinghousing,
And the heating sheet (15) is silicon rubber heating sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910631832.6A CN110186573A (en) | 2019-07-12 | 2019-07-12 | A kind of area blackbody radiation source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910631832.6A CN110186573A (en) | 2019-07-12 | 2019-07-12 | A kind of area blackbody radiation source |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111273711A (en) * | 2020-03-31 | 2020-06-12 | 成都飞机工业（集团）有限责任公司 | Large-caliber high-temperature infrared surface source black body device with double-zone temperature control |
| CN112048747A (en) * | 2020-08-06 | 2020-12-08 | 浙江大华技术股份有限公司 | Surface source black body and preparation method thereof |
| WO2021232676A1 (en) * | 2020-05-19 | 2021-11-25 | 深圳市商汤科技有限公司 | Black-body radiation device |
| CN116773029A (en) * | 2023-06-13 | 2023-09-19 | 长春理工大学 | Infrared MRTD four-bar target temperature difference precision measurement device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111273711A (en) * | 2020-03-31 | 2020-06-12 | 成都飞机工业（集团）有限责任公司 | Large-caliber high-temperature infrared surface source black body device with double-zone temperature control |
| WO2021232676A1 (en) * | 2020-05-19 | 2021-11-25 | 深圳市商汤科技有限公司 | Black-body radiation device |
| CN112048747A (en) * | 2020-08-06 | 2020-12-08 | 浙江大华技术股份有限公司 | Surface source black body and preparation method thereof |
| CN112048747B (en) * | 2020-08-06 | 2021-09-21 | 浙江大华技术股份有限公司 | Surface source black body and preparation method thereof |
| CN116773029A (en) * | 2023-06-13 | 2023-09-19 | 长春理工大学 | Infrared MRTD four-bar target temperature difference precision measurement device |
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