CN202582738U - Mini-type extend blackbody device based on TEC - Google Patents
Mini-type extend blackbody device based on TEC Download PDFInfo
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- CN202582738U CN202582738U CN 201220240619 CN201220240619U CN202582738U CN 202582738 U CN202582738 U CN 202582738U CN 201220240619 CN201220240619 CN 201220240619 CN 201220240619 U CN201220240619 U CN 201220240619U CN 202582738 U CN202582738 U CN 202582738U
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Abstract
The utility model discloses a mini-type extend blackbody device based on a TEC. A red copper radiator and a TEC (Thermal Electric Cooler) are bonded together through heat conducting silicon grease. A long bolt is fixed on a heat dissipating sheet after penetrating through a bolt installation hole of a heat insulation fixing ring and a square through hole of the red copper radiator. The TEC is disposed between the red copper radiator and the heat dissipating sheet and is fixed through a heat dissipating sheet installing post. A fan is installed on the tail part of a shell. A protection cover is arranged in a radiation window on the front end of the shell. High-radiance material is sprayed on a radiation surface. Heat conducting silicon gel is coated on a heat conduction surface. An end face is provide with a temperature sensor installation hole. The heat insulation fixing ring is a Teflon square block provided with a round hole. The mini-type extend blackbody device based on the TEC is small in size and low in weight, and is capable of realizing plus-minus temperature difference radiation. The temperature stability is good, and the temperature response speed is high. And cooperating with a mini-size collimating optical system and an infrared target, the mini-type extend blackbody device based on the TEC is convenient for performing performance detection of infrared devices in the outdoor.
Description
Technical field
The utility model relates to the infrared technique field, more specifically relates to a kind of miniature extend blackbody device based on TEC, is applied to infrared thermal imagery equipment performance index detection range.
Background technology
The extend blackbody radiation source is the infrared radiation working stamndard; Be widely used in process test and the technical indicator test of design test in the development process of infrared eye; Can accomplish infrared focal plane device photosurface response homogeneity, in response curve and the isoparametric test of dead first pixel.Simultaneously, the extend blackbody radiation source cooperates collimating optical system and infrared target as the nucleus equipment of infrared imaging calibrating installation, accomplishes key technical index test and Performance Evaluations such as infrared imaging system MRTD, MDTD, NETD, MTF.
At present, blackbody radiation source commonly used is made up of radial chamber, temperature control device, thermal sensor, and wherein the temperature control device comprises heating plate, heating platinum filament, capillary heat pipe.Temperature control device and radial chamber compact package, thermal sensor is gathered the radial chamber temperature in real time, and the temperature through control temperature control device change radial chamber produces the required blackbody radiation temperature difference.But blackbody radiation source commonly used can only produce the positive temperature difference with respect to environment temperature, does not produce the ability of subzero temperature difference, and in infrared system index MRTD testing process, needs black matrix that the positive and negative temperature difference is provided.Though it is poor to produce subzero temperature through the LIN refrigeration, its overall volume is bigger, only is applicable to laboratory environment.
China utility model patent CN201020150858.3 provide a kind of miniature black body radiation source device; Its technological approaches is to be radial chamber with the cylindrical cavity structure; The heating platinum filament is on the outside surface that the double helix shape is wrapped in radial chamber; The two ends of heating platinum filament are connected the other end external power supply of high temperature resistant lead-in wire with an end of high temperature resistant lead-in wire.Heat to cavity through the heating platinum filament, produce heat radiation output.China utility model patent CN200420019883.2 proposes, and adopting the hollow cylinder dish is radiator, is equipped with many circle locked grooves on the radiating surface of cylinder plate; The back side of cylinder plate is a few locked grooves; Heater strip places in each groove, is equipped with a few circumferential grooves on the periphery of cylinder plate, and heater strip places in each circumferential groove; Periphery at cylinder plate is equipped with the hole from the center of circle to the circumference that several are used for sensor installation, and hollow cylinder dish radiating surface and inside surface all are equipped with the blackout layer.More than the difference of two kinds of schemes be the structure of radial chamber, the former adopts cylindrical cavity, the heating platinum filament twines cylindrical cavity; The latter adopts cylinder plate, and heater strip is installed in the locked groove of cylinder plate back.Though these two kinds of schemes have characteristics such as simple in structure, that temperature control is easy, its temperature-responsive is slow, and accuracy of temperature control is not high and can not produce the subzero temperature difference radiation with respect to environment temperature.
Metering in 2008 provides a kind of large-scale extend blackbody radiation appliance with measurement seminar " extend blackbody radiation source " literary composition; Its technological approaches is to adopt the heating and the independent control model of freezing, and promptly adopts sheet resistance to heat, and adopts TEC to freeze; Though this device has solved the problem that the positive and negative temperature difference produces; But in subzero temperature difference production process,, increased system power dissipation because the refrigerating capacity of TEC passes to radiating surface then through resistance film; And in heating or cold and hot handoff procedure, temperature-responsive speed is slower.
Summary of the invention
In order to solve the problem that extend blackbody commonly used can not produce subzero temperature difference infrared radiation, the purpose of the utility model is to be to provide a kind of miniature extend blackbody device based on TEC, and the TEC TEC in this black matrix device has refrigeration and heating function; Heating efficiency is high; Thermal inertia is very little, and the cooling and heating type time is very fast, under the situation of the good cold junction zero load of hot-side heat dissipation; Energising was less than one minute, and refrigerator just can reach maximum temperature difference.This black matrix device can produce positive and negative temperature difference infrared radiation, has advantages such as temperature resolution height, temperature-responsive be fast, not only can be used for the laboratory, also can be used for field environment.
The technical scheme of the utility model is:
A kind of miniature extend blackbody device based on TEC comprises housing, adiabatic retainer plate, protective cover, temperature sensor mounting hole, red copper radiator, TEC TEC, long threaded rod, heat radiator erection column, heat radiator, fan.It is characterized in that: red copper radiator and TEC TEC are bonded together through heat-conducting silicone grease; Long threaded rod passes the double-screw bolt mounting hole of adiabatic retainer plate and four jiaos of through holes of red copper radiator are fixed on the heat radiator; TEC TEC places between red copper radiator and the heat radiator, and integral installation is fixed through the heat radiator erection column in enclosure interior then; Fan is installed in the afterbody of housing, and protective cover places in the radiation window of housing front end.
The red copper piece that described red copper radiator is length of side 50mm, thick 5mm, radiating surface spraying high radiant rate material, heat conduction face coated with thermally conductive silica gel, an end face bores the temperature sensor mounting hole of a Φ 3mm.
The teflon square that described adiabatic retainer plate is length of side 50mm, thick 10mm is drawn the circular hole of Φ 30mm in the square, the screw via hole of four angular bit Φ 3, the nut 4mm that partly sinks.
A kind of miniature extend blackbody device based on TEC utilizes the operating characteristic of TEC TEC, and the red copper part that adopts high heat capacity is as radiating surface; Red copper part built-in thermoelectric resistance mounting hole; Thermal resistance PT100 is installed in the hole, the radiation temperature that is used to gather radiation component, the radiating surface of red copper part carries out spraying the high radiant rate material after the blasting treatment; The heat conduction face of red copper part polishes smooth through heat-conducting silicone grease and is close on the front of TEC, the negative direct installation heating radiator of TEC.Red copper radiator, TEC TEC, long threaded rod, heat radiator are formed radiation head, and integral body is fixed on enclosure interior through the heat radiator erection column, and the rear end face of housing is installed fan.When needs produce the positive temperature difference, the positive heating of TEC, negative refrigeration, the heat of generation conducts to radiation component, and thermal resistance feeds back to control circuit with radiation temperature, and control circuit is accomplished the TEC Current Control, thereby realizes the control of radiation temperature; When needs produce the subzero temperature difference, the positive refrigeration of TEC, negative heating, fan work, the heat of negative generation distributes through the fan effect through heating radiator.
The utility model compared with prior art has the following advantages:
The first, adopt TEC TEC as automatically controlled heating and refrigeration source, low in energy consumption, the stable temperature control degree is high, and temperature-responsive speed is fast.
The second, adopt certain thickness high heat capacity red copper as radiator, the temperature homogeneity of radiating surface is good.
The 3rd, this black matrix apparatus structure is simple, and volume is little, and is in light weight, can realize positive and negative temperature difference radiation, cooperates small-sized collimating optical system and infrared target, is convenient to the Performance Detection of carrying out infrared equipment outdoor.
Description of drawings
Fig. 1 is a kind of miniature extend blackbody device radiator synoptic diagram based on TEC.
Wherein: 1-housing, the adiabatic retainer plate of 2-, 3-protective cover, 4-temperature sensor mounting hole, 5-red copper radiator, 6-TEC TEC (TEC107104), 7-long spiro nail, 8-heat radiator erection column, 9-heat radiator, 10-fan (ABB06D12HG).
Embodiment
A kind of miniature extend blackbody device based on TEC, it is made up of housing 1, adiabatic retainer plate 2, protective cover 3, temperature sensor mounting hole 4, red copper radiator 5, TEC TEC 6, long threaded rod 7, heat radiator erection column 8, heat radiator 9, fan 10.Red copper radiator 5 radiating surfaces are through spraying high radiant rate compound substance after the blasting treatment, and red copper radiator 5 heat conduction faces polish smooth, and the side core bores the temperature sensor mounting hole 4 of a Φ 3, and the degree of depth arrives the center of red copper radiation component.The heat conduction face of red copper radiation component is close to the front of TEC TEC6 through heat-conducting silicone grease, and the reverse side of TEC is close to heat radiator 9.Adiabatic retainer plate 2 adopts the square-outside and round-inside structure; Four jiaos of double-screw bolt mounting holes that are processed into sinking, interior circular diameter is 30mm, during installation; Long threaded rod 7 passes the double-screw bolt mounting hole of adiabatic retainer plate 2 and four jiaos of through holes of red copper radiator are fixed on the heat radiator; Form radiation head, TEC TEC6 assigns between red copper radiator 5 heat conduction faces and the heat radiator 9, through the pressure fixing of both ends of the surface.Housing 1 adopts monoblock duralumin processing sandblast oxidation to form, and has characteristics in light weight, firm in structure.Radiation head is fixed on enclosure interior through the erection column on the heat radiator 8; Adiabatic retainer plate 2 withstands the radiation port of housing 1 during installation; The radiation port center of adiabatic retainer plate 2 centers and housing 1 keeps coaxial relation; Thereby the heat radiation that red copper radiator 5 radiating surfaces are produced is exported through adiabatic retainer plate 2 and housing 1 radiation port, as the infrared radiation dummy source of infrared detection system.Install the not time spent, can protective cover 3 be installed on the housing 1, avoid dust to get into radiation head.Fan 10 is fixed on the rear end of housing.
Claims (3)
1. miniature extend blackbody device based on TEC; It comprises adiabatic retainer plate (2), protective cover (3), red copper radiator (5), TEC TEC (6), long threaded rod (7), heat radiator erection column (8), heat radiator (9); It is characterized in that: red copper radiator (5) is bonded together through heat-conducting silicone grease with TEC TEC (6); Long threaded rod (7) passes the double-screw bolt mounting hole of adiabatic retainer plate (2) and four jiaos of through holes of red copper radiator (5) are fixed on the heat radiator (9); TEC TEC (6) places between red copper radiator (5) and the heat radiator (9); Fixing through heat radiator erection column (8), fan (10) is installed in the afterbody of housing, and protective cover (3) places in the radiation window of housing (1) front end.
2. a kind of miniature extend blackbody device according to claim 1 based on TEC; It is characterized in that: described red copper radiator (5) is the red copper piece of length of side 50mm, thick 5mm; Radiating surface spraying high radiant rate material; Heat conduction face coated with thermally conductive silica gel, an end face bores the temperature sensor mounting hole (4) of a Φ 3mm.
3. a kind of miniature extend blackbody device according to claim 1 based on TEC; It is characterized in that: described adiabatic retainer plate (2) is the teflon square of length of side 50mm, thick 10mm; Draw the circular hole of Φ 30mm in the square, the screw via hole of four angular bit Φ 3, nut sinking 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220240619 CN202582738U (en) | 2012-05-25 | 2012-05-25 | Mini-type extend blackbody device based on TEC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220240619 CN202582738U (en) | 2012-05-25 | 2012-05-25 | Mini-type extend blackbody device based on TEC |
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| Publication Number | Publication Date |
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| CN202582738U true CN202582738U (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220240619 Expired - Fee Related CN202582738U (en) | 2012-05-25 | 2012-05-25 | Mini-type extend blackbody device based on TEC |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075814A (en) * | 2014-06-24 | 2014-10-01 | 北京空间机电研究所 | Calibration switching mechanism for reducing background radiation influences in blackbody radiation calibration process |
| CN104422520A (en) * | 2013-08-21 | 2015-03-18 | 北京航天计量测试技术研究所 | High-precision multi-mode blackbody radiation source |
| CN113984219A (en) * | 2021-09-15 | 2022-01-28 | 国科大杭州高等研究院 | Low-temperature black body radiation source device with functions of preventing frosting and dewing and dissipating heat of thermoelectric cooler (TEC) hot end |
| CN116773029A (en) * | 2023-06-13 | 2023-09-19 | 长春理工大学 | Infrared MRTD four-bar target temperature difference precision measurement device |
| CN113984219B (en) * | 2021-09-15 | 2024-07-16 | 国科大杭州高等研究院 | Low-temperature blackbody radiation source device with frosting and condensation prevention and TEC hot end heat dissipation functions |
-
2012
- 2012-05-25 CN CN 201220240619 patent/CN202582738U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422520A (en) * | 2013-08-21 | 2015-03-18 | 北京航天计量测试技术研究所 | High-precision multi-mode blackbody radiation source |
| CN104422520B (en) * | 2013-08-21 | 2018-05-18 | 北京航天计量测试技术研究所 | High-precision multimode blackbody radiation source |
| CN104075814A (en) * | 2014-06-24 | 2014-10-01 | 北京空间机电研究所 | Calibration switching mechanism for reducing background radiation influences in blackbody radiation calibration process |
| CN113984219A (en) * | 2021-09-15 | 2022-01-28 | 国科大杭州高等研究院 | Low-temperature black body radiation source device with functions of preventing frosting and dewing and dissipating heat of thermoelectric cooler (TEC) hot end |
| CN113984219B (en) * | 2021-09-15 | 2024-07-16 | 国科大杭州高等研究院 | Low-temperature blackbody radiation source device with frosting and condensation prevention and TEC hot end heat dissipation functions |
| 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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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20150525 |
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| EXPY | Termination of patent right or utility model |