CN106052907A - Temperature calibration device for meteorological detection optical fiber temperature sensor - Google Patents
Temperature calibration device for meteorological detection optical fiber temperature sensor Download PDFInfo
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- CN106052907A CN106052907A CN201610612607.4A CN201610612607A CN106052907A CN 106052907 A CN106052907 A CN 106052907A CN 201610612607 A CN201610612607 A CN 201610612607A CN 106052907 A CN106052907 A CN 106052907A
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- temperature sensor
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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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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a temperature calibration device for a meteorological detection optical fiber temperature sensor. The device comprises a sealed cavity, and the sealed cavity comprises a sidewall, and a base and a top cap which are arranged coaxially. A microwave generator is arranged in the base. A rotating antenna which is connected with the microwave generator and can rotate is arranged in the center of the base. The top cap is provided with a standard sample hole and a plurality of detection holes. The detection holes are equidistant from the center of the top cap, and the distances from the detection holes to the center of the top cap are equal to the distance from the standard sample hole to the center of the top cap. A standard temperature sensor is placed in the standard sample hole, and the detection holes are used to place optical fiber temperature sensors to be detected. The four sides of the sidewall are each provided with a transparent observation window, and each transparent observation window is provided with a scale line or a limit line. With the device, an optical fiber temperature sensor can be calibrated as a whole, heating is quick, the heating rate is controllable, the internal temperature field is uniform, and calibration data is accurate and reliable.
Description
Technical field
The present invention relates to a kind of calibrating installation, the temperature correction dress of a kind of meteorological detection fibre optic temperature sensor
Put.
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 meteorological detection to use up
The temperature calibration instrument of fine temperature sensor, the temperature calibration instrument of this meteorology detection fibre optic temperature sensor can be to optical fiber temperature
Degree sensor entirety is calibrated, quick heating, and heating rate is controlled, and 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:
The temperature calibration instrument of a kind of meteorological detection fibre optic temperature sensor, including sealing cavity, this sealing cavity includes side
Wall, the base being coaxially disposed and top cover, be provided with microwave generator in base, being provided centrally with and microwave generator phase of base
Connect and revolvable rotable antenna；It is provided with standard specimen hole on top cover and several detect hole；Each detection hole is to top cap central
Distance equal, and be equal to standard specimen hole to the distance of top cap central；It is placed with standard temperature sensor in standard specimen hole, detects hole
Inside it is used for placing testing fiber temperature sensor；Sidewall surrounding is provided with transparent windows, and this transparent windows is provided with quarter
Degree line or spacing line.
Described rotable antenna is connected with the motor being positioned at base by rotating shaft.
The height of described rotable antenna can lift.
Described microwave generator is according to PID Self-tuning System algorithm controls microwave power, and detects according to standard temperature sensor
Temperature value A.T.C raising and lowering speed.
Described testing fiber temperature sensor is equal with the insertion depth of standard temperature sensor, rotable antenna top and mark
Vertical dimension between quasi-temperature sensor is 50-80mm.
After the present invention uses said structure, the microwave that above-mentioned microwave generator produces passes through rotable antenna in annular seal space body
Transmitting, be the most constantly transmitted into by microwave in annular seal space body, firing rate is fast, temperature even flow field.Detection hole is in top cover
The distance of the heart is equal, and is equal to standard specimen hole to the distance of top cap central, it is thus possible to make detection hole and standard specimen hole to top cap central
Radial distance equal, it addition, above-mentioned graduation mark or the setting of spacing line, standard temperature sensor and testing fiber temperature can be made
Sensor distance in vertical direction is equal, so that standard temperature sensor is positioned at identical with testing fiber temperature sensor
Temperature flow field, test data more accurately, reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the temperature calibration instrument of a kind of meteorological detection fibre optic temperature sensor of the present invention.
Detailed description of the invention
The present invention is further detailed explanation with concrete better embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, the temperature calibration instrument of a kind of meteorological detection fibre optic temperature sensor, wherein there are base 1, microwave
Generator 11, rotable antenna 12, sidewall 2, graduation mark 21, top cover 3, standard specimen hole 31, standard temperature sensor 32, detection hole 33,
The technical characteristics such as testing fiber temperature sensor 34 and sealing ring 4.
The temperature calibration instrument of a kind of meteorological detection fibre optic temperature sensor, including sealing cavity, this sealing cavity bag
The base include sidewall, being coaxially disposed and top cover.Base is preferably integrated setting with sidewall, and top cover is preferably by sealing ring and sidewall
Seal and coordinate.
Being provided with microwave generator in base, being provided centrally with of base is connected with microwave generator and revolvable rotation
Relay antenna.
It is provided with standard specimen hole on top cover and several detect hole；Each detection hole is equal to the distance of top cap central, and all
Distance equal to standard specimen hole to top cap central；It is placed with standard temperature sensor in standard specimen hole, is used for placing to be measured in detection hole
Fibre optic temperature sensor.
Sidewall surrounding is provided with transparent windows, and this transparent windows is provided with graduation mark or spacing line.
Described rotable antenna is connected with the motor being positioned at base by rotating shaft.
The height of described rotable antenna can lift.
Described microwave generator is according to PID Self-tuning System algorithm controls microwave power, and detects according to standard temperature sensor
Temperature value A.T.C raising and lowering speed.
Described testing fiber temperature sensor is equal with the insertion depth of standard temperature sensor, rotable antenna top and mark
Vertical dimension between quasi-temperature sensor is 50-80mm.
After the present invention uses said structure, the microwave that above-mentioned microwave generator produces passes through rotable antenna in annular seal space body
Transmitting, be the most constantly transmitted into by microwave in annular seal space body, firing rate is fast, temperature even flow field.Detection hole is in top cover
The distance of the heart is equal, and is equal to standard specimen hole to the distance of top cap central, it is thus possible to make detection hole and standard specimen hole to top cap central
Radial distance equal, it addition, above-mentioned graduation mark or the setting of spacing line, standard temperature sensor and testing fiber temperature can be made
Sensor distance in vertical direction is equal, so that standard temperature sensor is positioned at identical with testing fiber temperature sensor
Temperature flow field, test data more accurately, reliable.
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 (5)
1. the temperature calibration instrument of a meteorological detection fibre optic temperature sensor, it is characterised in that: including sealing cavity, this is close
Envelope cavity includes sidewall, the base that is coaxially disposed and top cover, is provided with microwave generator in base, base be provided centrally with
Microwave generator is connected and revolvable rotable antenna；It is provided with standard specimen hole on top cover and several detect hole；Each 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；Standard specimen is placed with standard temperature in hole
Sensor, detection is used for placing testing fiber temperature sensor in hole；Sidewall surrounding is provided with transparent windows, this transparent observing
Graduation mark or spacing line it is provided with on window.
The temperature calibration instrument of meteorological detection fibre optic temperature sensor the most according to claim 1, it is characterised in that: institute
State rotable antenna to be connected with the motor being positioned at base by rotating shaft.
The temperature calibration instrument of meteorological detection fibre optic temperature sensor the most according to claim 1, it is characterised in that: institute
The height stating rotable antenna can lift.
The temperature calibration instrument of meteorological detection fibre optic temperature sensor the most according to claim 1, it is characterised in that: institute
State microwave generator according to PID Self-tuning System algorithm controls microwave power, and according to the temperature value of standard temperature sensor detection from
Dynamic control temperature raising and lowering speed.
The temperature calibration instrument of meteorological detection fibre optic temperature sensor the most according to claim 1, it is characterised in that: institute
Stating testing fiber temperature sensor equal with the insertion depth of standard temperature sensor, rotable antenna top senses with standard temperature
Vertical dimension between device is 50-80mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610612607.4A CN106052907A (en) | 2016-07-28 | 2016-07-28 | Temperature calibration device for meteorological detection optical fiber temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610612607.4A CN106052907A (en) | 2016-07-28 | 2016-07-28 | Temperature calibration device for meteorological detection optical fiber temperature sensor |
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| Publication Number | Publication Date |
|---|---|
| CN106052907A true CN106052907A (en) | 2016-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610612607.4A Pending CN106052907A (en) | 2016-07-28 | 2016-07-28 | Temperature calibration device for meteorological detection optical fiber temperature sensor |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010040360A1 (en) * | 2008-10-10 | 2010-04-15 | Ametek Denmark A/S | A calibration apparatus |
| CN101813532A (en) * | 2010-03-30 | 2010-08-25 | 中国计量学院 | Temperature field calibrating device and temperature field calibrating method of distributed optical fiber temperature sensor system |
| CN102095528A (en) * | 2010-12-07 | 2011-06-15 | 西华大学 | Temperature sensor calibration device |
| CN102265092A (en) * | 2008-12-25 | 2011-11-30 | 松下电器产业株式会社 | Microwave cooking device |
| CN102384801A (en) * | 2011-08-24 | 2012-03-21 | 山东省计量科学研究院 | Achieving method and device of temperature source under 550-880 DEG C |
| 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 |
| CN203773345U (en) * | 2013-12-18 | 2014-08-13 | 江苏杰创科技有限公司 | Automatic verification apparatus of transformer temperature measurement-control instrument |
| CN105588667A (en) * | 2015-12-18 | 2016-05-18 | 上海市计量测试技术研究院 | High-precision thermistor thermometer calibrating device |
-
2016
- 2016-07-28 CN CN201610612607.4A patent/CN106052907A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010040360A1 (en) * | 2008-10-10 | 2010-04-15 | Ametek Denmark A/S | A calibration apparatus |
| CN102265092A (en) * | 2008-12-25 | 2011-11-30 | 松下电器产业株式会社 | Microwave cooking device |
| CN101813532A (en) * | 2010-03-30 | 2010-08-25 | 中国计量学院 | Temperature field calibrating device and temperature field calibrating method of distributed optical fiber temperature sensor system |
| CN102095528A (en) * | 2010-12-07 | 2011-06-15 | 西华大学 | Temperature sensor calibration device |
| CN102384801A (en) * | 2011-08-24 | 2012-03-21 | 山东省计量科学研究院 | Achieving method and device of temperature source under 550-880 DEG C |
| 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 |
| CN203773345U (en) * | 2013-12-18 | 2014-08-13 | 江苏杰创科技有限公司 | Automatic verification apparatus of transformer temperature measurement-control instrument |
| CN105588667A (en) * | 2015-12-18 | 2016-05-18 | 上海市计量测试技术研究院 | High-precision thermistor thermometer calibrating device |
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Application publication date: 20161026 |