CN106017739A - Temperature sensor calibration device - Google Patents
Temperature sensor calibration device Download PDFInfo
- Publication number
- CN106017739A CN106017739A CN201610604436.0A CN201610604436A CN106017739A CN 106017739 A CN106017739 A CN 106017739A CN 201610604436 A CN201610604436 A CN 201610604436A CN 106017739 A CN106017739 A CN 106017739A
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- China
- Prior art keywords
- temperature sensor
- roll body
- iron core
- cavity
- top cover
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/005—Calibration
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Induction Heating (AREA)
Abstract
The invention discloses a temperature sensor calibration device comprising a sealing cavity. The sealing cavity comprises side walls, and a base and a top cover which are coaxially arranged. The top cover is provided with a standard sample hole and multiple detection holes. The distance from all the detection holes to the center of the top cover is equal. The detection holes are used for placing temperature sensors to be measured. The periphery of the side walls is provided with transparent observation windows which are provided with scale lines or limit lines. The center of the base is provided with an electromagnetic induction roller which comprises roller body. The roller body is internally provided with a hollow iron core. The periphery of the iron core arranged in the roller body is evenly wound by heating coils. The external surface of the iron core is evenly provided with multiple hot air holes. The cavity of the iron core is internally provided with a fan. The side wall of the roller body is provided with a liquid medium cavity. The two end parts of the roller body are provided with heat-radiating holes. The whole temperature sensor can be calibrated so that the temperature sensor calibration device is fast in temperature rising, controllable in temperature rising rate, energy-saving, uniform in internal temperature field and accurate and reliable in calibration data.
Description
Technical field
The present invention relates to a kind of calibrating installation, particularly a kind of calibrating device for temperature sensor.
Background technology
The certainty of measurement of temperature sensors of high precision is affected by manufacturing the many factors such as process deviation, encapsulation stress,
In order to reach the accuracy Design requirement of chip, it is necessary to the temperature sensor chip after Preliminary screening, encapsulation is calibrated.
The structure of existing temperature sensor calibration system, including temperature calibration system, thermometric instruments；Temperature correction
System is for gathering the measurement data of chip to be calibrated, and thermometric instruments is for gathering the operating ambient temperature of chip to be calibrated
Data.
The major defect of this structure is:
(1) thermometric instruments must be high-precision, and cost is high.
(2), in calibration process, the temperature probe of thermometric instruments is difficult to be combined well with chip to be calibrated and have
Same temperature environment.
(3) requiring that chip to be calibrated and test probe are immersed in liquid environment, building of this calibration environment is more complicated,
And owing to needs change calibration temperature to liquid heating, prover time is longer.
The Chinese invention patent application of Application No. 200810044099.X disclosed in 23 days June in 2010, it invents wound
Entitled " the calibration system of temperature sensor chip and the calibration steps " made, it includes test board, temperature calibration system；Test
Temperature sensor reference chip and chip to be calibrated it is provided with on plate；Each chip is by unified digital interface and temperature correction system
System connects communication.The temperature calibration system of the present invention, reads each chip to be calibrated and reference chip by unified digital interface
Temperature value；Each chip to be calibrated gathers data simultaneously, it is achieved that multi-chip data collection synchronous is calibrated, it is possible to be greatly improved number
According to collecting efficiency, reduce chip the detection calibration time, reduce calibration cost.Have simple in construction, easily build, prover time
Short, calibration efficiency is high, low cost and automaticity advantages of higher.
But, above-mentioned patent application is suitable only for the calibration of temperature sensor chip, and temperature sensor finished product needs again to seal
Dress, the temperature after encapsulation needs comparison again, calibration.It addition, after temperature sensor uses a period of time, can aging, drift
Deng.Therefore, it is also desirable to again calibrate.
At present, temperature sensor, in meteorology detects, carries important function, detects in outdoor temperature, extreme environment temperature
Degree detects has irreplaceable effect.The basic functional principle of Fibre Optical Sensor is through light by the optical signal from light source
Fine send into manipulator, after making parameter to be measured and interacting with the light entering modulator zone, cause optical property (strong such as light of light
Degree, wavelength, frequency, phase place, polarization state etc.) change, become the signal source modulated, send into optical detection through optical fiber
Device, is demodulated, it is thus achieved that measured parameter.Thus there is the advantage of a series of uniqueness, and as good in electrical insulation capability, electromagnetism interference energy
Power is strong, Noninvasive, high sensitivity, easily realizes the remote monitor to measured signal, and corrosion-resistant, explosion-proof, light path has flexible
Qu Xing, it is simple to couple with computer.It can be in place that people does not reaches (such as high-temperature region or the area that is pernicious to people, such as core
Radiation area), play the knowledge effect of people, and the physiological limits of people can also be surmounted, outside the sense organ of recipient is not felt by
Boundary's information.Therefore, Fibre Optical Sensor application in meteorology detects is more and more extensive.
The Chinese invention patent application of Application No. 201010576244.6 disclosed in 15 days June in 2011, it invents wound
Entitled " calibrating device for temperature sensor " made, it includes cavity, is full of heat-conduction medium, is provided with in cavity in cavity
Heater and temperature sensor, described heat-conduction medium is gas, is additionally provided with fan in cavity, and cavity is provided with temperature to be calibrated
Degree sensor insertion hole, temperature sensor to be calibrated is inserted and is provided with temperature sensor clamping device to be calibrated at hole.Fan is located at
Middle part in cavity, described heater is arranged around fan；Be additionally provided with air inlet and gas outlet on cavity, air inlet be provided with into
Valve, gas outlet is provided with air outlet valve, and the position of air inlet is located proximate to fan than gas outlet；Gas outlet and the ventilation in cavity
Road connects, the top suitable for reading within the cavity of described ventilating duct.
But, owing to temperature sensor and temperature sensor to be calibrated be not in same temperature field, therefore the temperature spot of detection has
Institute's difference, causes calibration data not accurate enough, and error is big.It addition, hot blast directly blows to temperature sensor surface, further result in
Temperature data test error is bigger than normal.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned the deficiencies in the prior art, and provides a kind of temperature sensor school
Standard apparatus, temperature sensor entirety can be calibrated by this calibrating device for temperature sensor, quick heating, and heating rate is controlled, joint
Can, internal temperature field is uniform, and calibration data is accurate, reliable.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of calibrating device for temperature sensor, including sealing cavity, this sealing cavity includes sidewall, the base that is coaxially disposed and top
Lid, top cover is provided with standard specimen hole and several detect hole；Each detection hole is equal to the distance of top cap central, and is equal to mark
Sample hole is to the distance of top cap central；Be placed with standard temperature sensor in standard specimen hole, for placement, detection treats that testing temperature passes in hole
Sensor；Sidewall surrounding is provided with transparent windows, and this transparent windows is provided with graduation mark or spacing line；Base is centrally disposed
Having electromagnetic induction roller, electromagnetic induction roller to include roll body, one end of roll body is connected with base rotation, and the other end of roll body turns with top cover
It is dynamically connected；Roll body is built-in with the iron core of hollow, and being positioned at uniform winding on its outer diameter of roll body has heating coil, outside iron core
Surface is evenly arranged with several hot blast holes, is provided with fan in the cavity of iron core；The sidewall of roll body is provided with liquid medium chamber,
The both ends of roll body are provided with louvre.
It is provided with induction air inlet on described top cover and stretches into the air draft pipeline sealing cavity bottom.
The rotating shaft of described fan has cavity, and the two ends cable of heating coil passes in the cavity of rotating shaft.
The liquid medium that described liquid medium intracavity is filled is water.
The liquid medium that described liquid medium intracavity is filled is conduction oil.
The wire of described heating coil is hollow conductor, is perfused with cooling water in hollow conductor.
After the present invention uses said structure, have the advantages that
The setting of the most above-mentioned electromagnetic induction roller, can economize on electricity more than 40%.
2. the design of aforesaid liquid dielectric cavity, when heating coils heat, generation alternating magnetic field around heating coil,
This action of a magnetic field when roll body can induced current form some little eddy current and cause roll body to generate heat therein, this heat can make
The liquid medium heating of liquid medium intracavity, the heat mixing that the heat distributed after liquid medium heating and roll body directly obtain,
Can effectively regulate the temperature of equilibrium roll body outer surface.
3. said fans and the setting in hot blast hole on iron core, on the one hand, iron core and heating coil can be lowered the temperature, make
Heat is discharged in the louvre of roll body, on the other hand, the heat stepless action again of iron core and heating coil can be made in roll body
Surface.When cooling, solenoid stops heating, and fan then can make iron core, heating coil and the equal fast cooling of roll body.
The most above-mentioned induction air inlet and the design of air draft pipeline, when sealing cavity and needing cooling, can seal cavity
Inside it is the formation of the air-supply structure of upper entering and lower leaving, had both avoided air inlet, the adjacent air flow shortcircuit phenomenon caused of air outlet, promote
Seal the cooling-down effect of cavity.
The most above-mentioned detection hole is equal to the distance of top cap central, and is equal to standard specimen hole to the distance of top cap central, thus
Detection hole can be made equal with the radial distance in standard specimen hole to top cap central, it addition, above-mentioned graduation mark or the setting of spacing line, can make
Standard temperature sensor is equal with temperature sensor to be measured distance in vertical direction so that standard temperature sensor with treat
Testing temperature sensor is positioned at identical temperature flow field, and test data are more accurately, reliably.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of calibrating device for temperature sensor of the present invention.
Fig. 2 shows the structural representation of top cover in Fig. 1.
Detailed description of the invention
The present invention is further detailed explanation with concrete better embodiment below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, a kind of calibrating device for temperature sensor, wherein there are base 1, sidewall 2, graduation mark 21, top cover
3, standard specimen hole 31, standard temperature sensor 32, detection hole 33, temperature sensor to be measured 34, electromagnetic induction roller 4, roll body 41, heat radiation
Hole 411, liquid medium chamber 412, iron core 42, hot blast hole 421, heating coil 43, fan 44, induction air inlet 5 and air draft pipeline 6
Deng technical characteristics.
A kind of calibrating device for temperature sensor, including sealing cavity, the base that this sealing cavity includes sidewall, is coaxially disposed
And top cover, top cover is provided with standard specimen hole and several detect hole；Each detection hole is equal to the distance of top cap central, and impartial
Distance in standard specimen hole to top cap central；Being placed with standard temperature sensor in standard specimen hole, detection treats thermometric for placement in hole
Degree sensor；Sidewall surrounding is provided with transparent windows, and this transparent windows is provided with graduation mark or spacing line；Base center
Being provided with electromagnetic induction roller, electromagnetic induction roller includes roll body, and one end of roll body is connected with base rotation, the other end of roll body and top
Lid is rotationally connected；Roll body is built-in with the iron core of hollow, and being positioned at uniform winding on its outer diameter of roll body has heating coil, iron core
Outer surface be evenly arranged with several hot blast holes, be provided with fan in the cavity of iron core；The sidewall of roll body is provided with liquid and is situated between
Matter chamber, the both ends of roll body are provided with louvre.
It is provided with induction air inlet on described top cover and stretches into the air draft pipeline sealing cavity bottom.
The rotating shaft of described fan has cavity, and the two ends cable of heating coil passes in the cavity of rotating shaft.
The liquid medium that described liquid medium intracavity is filled is water.
The liquid medium that described liquid medium intracavity is filled is conduction oil.
The wire of described heating coil is hollow conductor, is perfused with cooling water in hollow conductor.
After the present invention uses said structure, have the advantages that
The setting of the most above-mentioned electromagnetic induction roller, can economize on electricity more than 40%.
2. the design of aforesaid liquid dielectric cavity, when heating coils heat, generation alternating magnetic field around heating coil,
This action of a magnetic field when roll body can induced current form some little eddy current and cause roll body to generate heat therein, this heat can make
The liquid medium heating of liquid medium intracavity, the heat mixing that the heat distributed after liquid medium heating and roll body directly obtain,
Can effectively regulate the temperature of equilibrium roll body outer surface.
3. said fans and the setting in hot blast hole on iron core, on the one hand, iron core and heating coil can be lowered the temperature, make
Heat is discharged in the louvre of roll body, on the other hand, the heat stepless action again of iron core and heating coil can be made in roll body
Surface.When cooling, solenoid stops heating, and fan then can make iron core, heating coil and the equal fast cooling of roll body.
The most above-mentioned induction air inlet and the design of air draft pipeline, when sealing cavity and needing cooling, can seal cavity
Inside it is the formation of the air-supply structure of upper entering and lower leaving, had both avoided air inlet, the adjacent air flow shortcircuit phenomenon caused of air outlet, promote
Seal the cooling-down effect of cavity.
The most above-mentioned detection hole is equal to the distance of top cap central, and is equal to standard specimen hole to the distance of top cap central, thus
Detection hole can be made equal with the radial distance in standard specimen hole to top cap central, it addition, above-mentioned graduation mark or the setting of spacing line, can make
Standard temperature sensor is equal with temperature sensor to be measured distance in vertical direction so that standard temperature sensor with treat
Testing temperature sensor is positioned at identical temperature flow field, and test data are more accurately, reliably.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned embodiment
Detail, in the technology concept of the present invention, technical scheme can be carried out multiple equivalents, this
A little equivalents belong to protection scope of the present invention.
Claims (6)
1. a calibrating device for temperature sensor, it is characterised in that: including sealing cavity, this sealing cavity includes sidewall, coaxial
The base arranged and top cover, top cover is provided with standard specimen hole and several detect hole；Each detection hole is to the distance of top cap central
Equal, and it is equal to standard specimen hole to the distance of top cap central；Being placed with standard temperature sensor in standard specimen hole, detection is used in hole
Place temperature sensor to be measured；Sidewall surrounding is provided with transparent windows, and this transparent windows is provided with graduation mark or spacing
Line；Base is provided centrally with electromagnetic induction roller, and electromagnetic induction roller includes roll body, and one end of roll body is connected with base rotation, roll body
The other end be rotationally connected with top cover；Roll body is built-in with the iron core of hollow, and being positioned at uniform winding on its outer diameter of roll body has
Heating coil, the outer surface of iron core is evenly arranged with several hot blast holes, is provided with fan in the cavity of iron core；The sidewall of roll body
Being provided with liquid medium chamber, the both ends of roll body are provided with louvre.
Calibrating device for temperature sensor the most according to claim 1, it is characterised in that: be provided with on described top cover induce into
Air port and stretch into seal cavity bottom air draft pipeline.
Calibrating device for temperature sensor the most according to claim 1, it is characterised in that: the rotating shaft of described fan has hollow
Chamber, the two ends cable of heating coil passes in the cavity of rotating shaft.
Calibrating device for temperature sensor the most according to claim 1, it is characterised in that: described liquid medium intracavity is filled
Liquid medium is water.
Calibrating device for temperature sensor the most according to claim 1, it is characterised in that: described liquid medium intracavity is filled
Liquid medium is conduction oil.
Calibrating device for temperature sensor the most according to claim 1, it is characterised in that: during the wire of described heating coil is
Hollow wire, is perfused with cooling water in hollow conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610604436.0A CN106017739A (en) | 2016-07-28 | 2016-07-28 | Temperature sensor calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610604436.0A CN106017739A (en) | 2016-07-28 | 2016-07-28 | Temperature sensor calibration device |
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| Publication Number | Publication Date |
|---|---|
| CN106017739A true CN106017739A (en) | 2016-10-12 |
Family
ID=57115522
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610604436.0A Pending CN106017739A (en) | 2016-07-28 | 2016-07-28 | Temperature sensor calibration device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482869A (en) * | 2016-11-17 | 2017-03-08 | 中国电子科技集团公司第四十研究所 | A kind of miniaturization distributed optical fiber temperature measurement caliberating device and scaling method |
| CN108645540A (en) * | 2018-05-15 | 2018-10-12 | 安徽天卓信息技术有限公司 | A kind of calibrating installation of temperature sensor |
| CN108827499A (en) * | 2018-07-30 | 2018-11-16 | 江苏方天电力技术有限公司 | A kind of temperature standard device of smokeless environment-friendly |
| WO2019137343A1 (en) * | 2018-01-09 | 2019-07-18 | 北京康斯特仪表科技股份有限公司 | Flow guiding and heat dissipating type dry block temperature calibrator |
| CN113654691A (en) * | 2020-05-12 | 2021-11-16 | 上海硕物天成信息科技有限公司 | Soil temperature sensor calibration instrument and calibration method |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354294A (en) * | 2008-09-08 | 2009-01-28 | 王长勋 | Cylinder-shaped air medium high temperature constant temperature bath |
| CN201466526U (en) * | 2009-08-31 | 2010-05-12 | 河南索凌电气有限公司 | Air conditioning switch cabinet |
| CN102095528A (en) * | 2010-12-07 | 2011-06-15 | 西华大学 | Temperature sensor calibration device |
| CN102325395A (en) * | 2011-08-22 | 2012-01-18 | 张家港市鹏氏电子科技有限公司 | Electromagnetic induction heating roller |
| CN202836827U (en) * | 2012-08-27 | 2013-03-27 | 芜湖先声中人药业有限公司 | Constant temperature inserting device suitable for multi-probe calibration |
| CN202928722U (en) * | 2012-11-07 | 2013-05-08 | 广西玉柴机器股份有限公司 | Sensor calibration device |
| CN203365021U (en) * | 2013-03-18 | 2013-12-25 | 中国兵器工业集团第五三研究所 | Portable temperature calibrator |
| US20140153606A1 (en) * | 2012-12-05 | 2014-06-05 | Fluke Corporation | High temperature furnace having reconfigurable heater circuits |
| CN103913257A (en) * | 2014-04-18 | 2014-07-09 | 浙江泰索科技有限公司 | Fixed pipe type calibration furnace capable of correcting thermal field difference |
| CN204216737U (en) * | 2014-10-29 | 2015-03-18 | 哈尔滨胜达电机密封设备有限公司 | A kind of collector ring of generator cooling air duct system |
| CN204835301U (en) * | 2015-08-08 | 2015-12-02 | 南京博纳威电子科技有限公司 | Can monitor air conditioning switch cabinet of flashover |
| CN105353092A (en) * | 2015-11-30 | 2016-02-24 | 无锡拓能自动化科技有限公司 | Gas sensor calibrating container |
| CN105758558A (en) * | 2016-03-24 | 2016-07-13 | 中国科学院寒区旱区环境与工程研究所 | Thermistor temperature sensor calibrating apparatus |
-
2016
- 2016-07-28 CN CN201610604436.0A patent/CN106017739A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354294A (en) * | 2008-09-08 | 2009-01-28 | 王长勋 | Cylinder-shaped air medium high temperature constant temperature bath |
| CN201466526U (en) * | 2009-08-31 | 2010-05-12 | 河南索凌电气有限公司 | Air conditioning switch cabinet |
| CN102095528A (en) * | 2010-12-07 | 2011-06-15 | 西华大学 | Temperature sensor calibration device |
| CN102325395A (en) * | 2011-08-22 | 2012-01-18 | 张家港市鹏氏电子科技有限公司 | Electromagnetic induction heating roller |
| CN202836827U (en) * | 2012-08-27 | 2013-03-27 | 芜湖先声中人药业有限公司 | Constant temperature inserting device suitable for multi-probe calibration |
| CN202928722U (en) * | 2012-11-07 | 2013-05-08 | 广西玉柴机器股份有限公司 | Sensor calibration device |
| US20140153606A1 (en) * | 2012-12-05 | 2014-06-05 | Fluke Corporation | High temperature furnace having reconfigurable heater circuits |
| CN203365021U (en) * | 2013-03-18 | 2013-12-25 | 中国兵器工业集团第五三研究所 | Portable temperature calibrator |
| CN103913257A (en) * | 2014-04-18 | 2014-07-09 | 浙江泰索科技有限公司 | Fixed pipe type calibration furnace capable of correcting thermal field difference |
| CN204216737U (en) * | 2014-10-29 | 2015-03-18 | 哈尔滨胜达电机密封设备有限公司 | A kind of collector ring of generator cooling air duct system |
| CN204835301U (en) * | 2015-08-08 | 2015-12-02 | 南京博纳威电子科技有限公司 | Can monitor air conditioning switch cabinet of flashover |
| CN105353092A (en) * | 2015-11-30 | 2016-02-24 | 无锡拓能自动化科技有限公司 | Gas sensor calibrating container |
| CN105758558A (en) * | 2016-03-24 | 2016-07-13 | 中国科学院寒区旱区环境与工程研究所 | Thermistor temperature sensor calibrating apparatus |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482869A (en) * | 2016-11-17 | 2017-03-08 | 中国电子科技集团公司第四十研究所 | A kind of miniaturization distributed optical fiber temperature measurement caliberating device and scaling method |
| WO2019137343A1 (en) * | 2018-01-09 | 2019-07-18 | 北京康斯特仪表科技股份有限公司 | Flow guiding and heat dissipating type dry block temperature calibrator |
| CN108645540A (en) * | 2018-05-15 | 2018-10-12 | 安徽天卓信息技术有限公司 | A kind of calibrating installation of temperature sensor |
| CN108827499A (en) * | 2018-07-30 | 2018-11-16 | 江苏方天电力技术有限公司 | A kind of temperature standard device of smokeless environment-friendly |
| CN113654691A (en) * | 2020-05-12 | 2021-11-16 | 上海硕物天成信息科技有限公司 | Soil temperature sensor calibration instrument and calibration method |
| CN113654691B (en) * | 2020-05-12 | 2024-06-04 | 上海硕物天成信息科技有限公司 | Calibration instrument and calibration method for soil temperature sensor |
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Application publication date: 20161012 |
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