CN110017906A - Black body radiation source device based on salt bath thermostat - Google Patents
Black body radiation source device based on salt bath thermostat Download PDFInfo
- Publication number
- CN110017906A CN110017906A CN201910355588.5A CN201910355588A CN110017906A CN 110017906 A CN110017906 A CN 110017906A CN 201910355588 A CN201910355588 A CN 201910355588A CN 110017906 A CN110017906 A CN 110017906A
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- CN
- China
- Prior art keywords
- salt bath
- radiation source
- bath thermostat
- source device
- black body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 150000003839 salts Chemical class 0.000 title claims abstract description 59
- 230000005457 Black-body radiation Effects 0.000 title claims abstract description 54
- 239000011159 matrix material Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000012774 insulation material Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 11
- 230000005855 radiation Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 235000006708 antioxidants Nutrition 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G01J5/52—Radiation pyrometry, e.g. infrared or optical thermometry using comparison with reference sources, e.g. disappearing-filament pyrometer
- G01J5/53—Reference sources, e.g. standard lamps; Black bodies
-
- 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
Abstract
The invention discloses a kind of black body radiation source devices based on salt bath thermostat, including salt bath thermostat, the salt bath thermostat one side is horizontally disposed the blackbody radiation source extended to inside salt bath thermostat, blackbody cavity is equipped in blackbody radiation source, the periphery of blackbody radiation source is provided with cyclone in the salt bath thermostat, and cyclone is by the motor driven that is set to outside salt bath thermostat.It uses the device that can reappear for black body radiation source device and better thermal field uniformity index is provided, to reach high-caliber fixed point reproduction, the accuracy of black matrix is greatly improved.
Description
Technical field
The present invention relates to a kind of measurement and calibration equipment, especially a kind of black body radiation source device based on salt bath thermostat.
Background technique
Standard blackbody is mainly used for calibrating radiation thermometer, infrared thermometer and radiation temperature biography as calibrated radiation source
Feel detector.As the important radiation source device of current metering industry, blackbody radiation source is to influence radiation temperature transmission of quantity value most
Crucial one of equipment.The stability of blackbody radiation source directly influences radiation temperature transmission of quantity value precision.In black matrix theory
It points out, for cavate black matrix, black body radiation energy spatial distribution depends on blackbody chamber temperature uniformity.The uniformity of blackbody chamber temperature
Then depend on used temperature source device.
The temperature source device i.e. black matrix furnace apparatus being currently most widely used in the world all uses three sections of tube furnaces, thermal field
Uniformity is mostly higher than 1 DEG C.The thermal field environment that can not be provided for the reproduction of blackbody radiation source, also cannot achieve high-caliber black
The reproduction of body radiation source, the accuracy of black matrix are lower.
Summary of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of black matrix spoke based on salt bath thermostat
Source device is penetrated, uses the device that can reappear for black body radiation source device and better thermal field uniformity index is provided, to reach high
Horizontal fixed point reproduction, the accuracy of black matrix greatly improve.
To achieve the above object, the present invention adopts the following technical solutions:
A kind of black body radiation source device based on salt bath thermostat, including salt bath thermostat, the salt bath thermostat one side water
It is flat to be provided with the blackbody radiation source extended to inside salt bath thermostat, blackbody cavity is equipped in blackbody radiation source, the salt bath is permanent
The periphery of blackbody radiation source is provided with cyclone in warm slot, and cyclone is by the motor driven that is set to outside salt bath thermostat.
The shell of the blackbody radiation source is made by metal alloy.Can effectively withstanding grooves intracavitary medium it is right during expansion
Black matrix chamber enclosure stress, avoids black body radiation source device from being destroyed.The metal shell is high temperature resistant, anti-oxidant, corrosion-resistant gold
Category is made, and makes extraneous medium from pollution.
The black matrix cavity front end face is tapered, cavity inner surface frosted processing, and is coated with 2mm thickness equadag coating.
Thermal insulation material is filled between the salt bath thermostat inside and outside wall.On the one hand thermal insulation material can reduce heat loss, separately
On the one hand the personal injury caused by can preventing due to whole device skin temperature is higher to user.
The heating device being tightly attached on inner wall is provided between the salt bath thermostat inside and outside wall.
The temperature-controlled precision of the salt bath thermostat is 0.01 DEG C, and the horizontal thermal field uniformity of the isothermal region of acquisition is better than 15mK/
30min。
The temperature upper limit of the high temperature thermal field of the salt bath thermostat is 700 DEG C.
In the present invention, salt bath thermostat using heat fusing after liquid salt as medium, additional cyclone is to carry out machinery
Stirring, the high temperature thermal field uniformity of this process can compare favourably with thermostatic oil bath, and temperature upper limit can reach 700 DEG C.Cyclone makes salt
Medium in bath thermostat circulates at high temperature, improves the uniformity of the thermal field of blackbody cavity, makes the thermal field of its isothermal region
Be distributed it is more uniform, to promote the emissivity of blackbody radiation source.It, can between arranging blackbody radiation source placement in salt bath thermostat
By black body radiation source device be put into wherein, guarantee blackbody radiation source can thermally equivalent, and then be blackbody radiation source calibration process
Uniform thermal field is provided.The characteristic that due to the medium inside salt bath thermostat there is high temperature melting, low temperature to solidify, it is desirable that be put into slot
Intracavitary black body radiation source device allows for carrying high voltage load, therefore black body radiation source device uses metal shell.Due to
Thermostat interior media is inorganic salts, and the contaminated uniformity that may cause thermal field of medium is interfered, medium most easy to pollute
It is the blackbody radiation source device metal shell being in direct contact with it, the oxide that Fang Yinghou occurs to aoxidize at high temperature for metal is de-
It falls, the uneven of thermal field in vallecular cavity can be directly resulted in, and then the reproduction for influencing radiation source is horizontal；The degree of oxidation of metal shell adds
Deep, the rupture that may cause blackbody chamber is excessive, this will directly jeopardize the personal safety of Field Force, therefore select corrosion-resistant, anti-
The high-temperature alloy material of oxidation.
Compared with prior art, the beneficial effects of the present invention are:
1. the present invention makes full use of the excellent thermal field index of existing salt bath thermostat, by utilizing liquid constant temperature temperature source device
Better thermal field uniformity index is provided for the reproduction of black body radiation source device, to reach high-caliber fixed point reproduction.
2. ensure that black by the present invention in that using high temperature resistant, anti-oxidant, corrosion resistant metal as black body radiation source device
The safety of body radiation source device, while also ensuring the smoothly progress of blackbody radiation source reproduction process.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the invention；
Wherein, 1. blackbody cavity, 2. thermal insulation materials, 3. heating devices, 4. cyclones, 5. motors, 6. salt bath thermostats, 7. is black
Body radiation source.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
This specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification revealed interior
Hold, so that those skilled in the art understands and reads, is not intended to limit the invention enforceable qualifications, therefore does not have skill
Essential meaning in art, the modification of any structure, the change of proportionate relationship or the adjustment of size can be produced not influencing the present invention
Under raw effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.
Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, be merely convenient to
Narration is illustrated, rather than to limit the scope of the invention, relativeness is altered or modified, without substantive change
Under technology contents, when being also considered as the enforceable scope of the present invention.
As shown in Figure 1, the black body radiation source device based on salt bath thermostat, including salt bath thermostat 6, the salt bath constant temperature
6 one side of slot is horizontally disposed the blackbody radiation source 7 extended to inside salt bath thermostat 6, and it is empty to be equipped with black matrix in blackbody radiation source 7
Chamber 1, guarantee blackbody radiation source can thermally equivalent, and then provide uniform thermal field for the calibration process of blackbody radiation source.Salt bath is permanent
The periphery of blackbody radiation source 7 is provided with cyclone 4 in warm slot 6, and cyclone 4 is driven by being set to the motor 5 outside salt bath thermostat 6
It is dynamic.Cyclone 4 circulates the medium in salt bath thermostat at high temperature, improves the uniformity of the thermal field of blackbody cavity, makes
The thermal field distribution of its isothermal region is more uniform, to promote the emissivity of blackbody radiation source.
The shell of blackbody radiation source 7 is made by metal alloy.Since the medium inside salt bath thermostat has high temperature
The characteristic of fusing, low temperature solidification, it is desirable that the black body radiation source device being put into vallecular cavity allows for carrying high voltage load, therefore black
Body radiation source device uses metal shell.Can effectively the intracavitary medium of withstanding grooves during expansion to black matrix chamber enclosure stress, avoid black
Body radiation source device is destroyed.Since thermostat interior media is inorganic salts, the contaminated uniformity that may cause thermal field of medium
It is interfered, medium most easy to pollute is the blackbody radiation source device metal shell being in direct contact with it, and metal is at high temperature
The oxide shedding that oxidation Fang Yinghou occurs can directly result in the uneven of thermal field in vallecular cavity, and then influence the reproduction of radiation source
It is horizontal；The degree of oxidation of metal shell is deepened, and the rupture that may cause blackbody chamber is excessive, this will directly jeopardize the people of Field Force
Body safety, therefore high temperature resistant, corrosion-resistant, oxidation resistant high-temperature alloy material is selected to make metal shell, make extraneous medium from
Pollution.
1 front end face of black matrix cavity is tapered, cavity inner surface frosted processing, and is coated with 2mm thickness equadag coating.Salt bath constant temperature
Thermal insulation material 2 is filled between 6 inside and outside wall of slot, on the one hand thermal insulation material 2 can reduce heat loss, on the other hand can prevent because whole
A crust of the device temperature drift and caused by personal injury to user
The heating device 3 being tightly attached on inner wall is provided between 6 inside and outside wall of salt bath thermostat, heating device can be heating wire.
The temperature-controlled precision of salt bath thermostat 6 is 0.01 DEG C, and the horizontal thermal field uniformity of the isothermal region of acquisition is better than 15mK/
30min.The temperature upper limit of the high temperature thermal field of salt bath thermostat 6 is 700 DEG C.Salt bath thermostat 6 with heat fusing after liquid
Salt is medium, and to carry out mechanical stirring, the high temperature thermal field uniformity of this process can compare favourably additional cyclone with thermostatic oil bath, temperature
The degree upper limit can reach 700 DEG C.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (7)
1. a kind of black body radiation source device based on salt bath thermostat, characterized in that including salt bath thermostat, the salt bath constant temperature
Slot one side is horizontally disposed the blackbody radiation source extended to inside salt bath thermostat, is equipped with blackbody cavity in blackbody radiation source,
The periphery of blackbody radiation source is provided with cyclone in the salt bath thermostat, and cyclone is by the electricity that is set to outside salt bath thermostat
Machine driving.
2. as described in claim 1 based on the black body radiation source device of salt bath thermostat, characterized in that the blackbody radiation source
Shell be made by metal alloy.
3. as described in claim 1 based on the black body radiation source device of salt bath thermostat, characterized in that before the black matrix cavity
End face is tapered, cavity inner surface frosted processing, and is coated with 2mm thickness equadag coating.
4. as described in claim 1 based on the black body radiation source device of salt bath thermostat, characterized in that the salt bath thermostat
Thermal insulation material is filled between inside and outside wall.
5. as described in claim 1 based on the black body radiation source device of salt bath thermostat, characterized in that the salt bath thermostat
The heating device being tightly attached on inner wall is provided between inside and outside wall.
6. as described in claim 1 based on the black body radiation source device of salt bath thermostat, characterized in that the salt bath thermostat
Temperature-controlled precision be 0.01 DEG C, the horizontal thermal field uniformity of the isothermal region of acquisition be better than 15mK/30min.
7. as described in claim 1 based on the black body radiation source device of salt bath thermostat, characterized in that the salt bath thermostat
High temperature thermal field temperature upper limit be 700 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355588.5A CN110017906A (en) | 2019-04-29 | 2019-04-29 | Black body radiation source device based on salt bath thermostat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355588.5A CN110017906A (en) | 2019-04-29 | 2019-04-29 | Black body radiation source device based on salt bath thermostat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110017906A true CN110017906A (en) | 2019-07-16 |
Family
ID=67192853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910355588.5A Pending CN110017906A (en) | 2019-04-29 | 2019-04-29 | Black body radiation source device based on salt bath thermostat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110017906A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080192797A1 (en) * | 2007-02-13 | 2008-08-14 | Industrial Technology Research Institute | Standard radiation source |
| CN102620836A (en) * | 2012-03-31 | 2012-08-01 | 中冶南方(武汉)威仕工业炉有限公司 | Method for calibrating surface temperature of metal flat plate |
| CN102829875A (en) * | 2012-08-30 | 2012-12-19 | 中国计量学院 | Three-cavity blackbody radiation source for measuring emissivity |
| CN104019903A (en) * | 2014-06-27 | 2014-09-03 | 上海量值测控仪器科技有限公司 | Black body cavity structure of black body radiation source |
| CN209656166U (en) * | 2019-04-29 | 2019-11-19 | 济南长峰致远仪表科技有限公司 | Black body radiation source device based on salt bath thermostat |
-
2019
- 2019-04-29 CN CN201910355588.5A patent/CN110017906A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080192797A1 (en) * | 2007-02-13 | 2008-08-14 | Industrial Technology Research Institute | Standard radiation source |
| CN102620836A (en) * | 2012-03-31 | 2012-08-01 | 中冶南方(武汉)威仕工业炉有限公司 | Method for calibrating surface temperature of metal flat plate |
| CN102829875A (en) * | 2012-08-30 | 2012-12-19 | 中国计量学院 | Three-cavity blackbody radiation source for measuring emissivity |
| CN104019903A (en) * | 2014-06-27 | 2014-09-03 | 上海量值测控仪器科技有限公司 | Black body cavity structure of black body radiation source |
| CN209656166U (en) * | 2019-04-29 | 2019-11-19 | 济南长峰致远仪表科技有限公司 | Black body radiation source device based on salt bath thermostat |
Non-Patent Citations (1)
| Title |
|---|
| 姚敏;: "采用恒温槽方案的黑体辐射源设计", 中国计量, no. 10, 10 October 2013 (2013-10-10), pages 2 * |
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