CN109855764A - Self calibration temp sensor device - Google Patents
Self calibration temp sensor device Download PDFInfo
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- CN109855764A CN109855764A CN201910066581.1A CN201910066581A CN109855764A CN 109855764 A CN109855764 A CN 109855764A CN 201910066581 A CN201910066581 A CN 201910066581A CN 109855764 A CN109855764 A CN 109855764A
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- self calibration
- temp sensor
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Abstract
The invention discloses a kind of self calibration temp sensor devices, including phase-change material A and phase-change material B, shell, interlayer, insulating layer, kernel temperature sensor, by being heated to phase-change material A and phase-change material B to meet phase point temperature, to reach Wen Ping, temperature sensor is calibrated according to phase-change material fixed phase point temperature, to realize on-line proving.The device meets the on-line proving of temperature sensor under particular surroundings, improves the measurement accuracy of temperature sensor under particular surroundings, realizes measurement and calibrates integrated function.
Description
Technical field
The invention belongs to spacecraft temperature measurement and calibration technique fields, specifically, the present invention relates to one kind can be achieved
In particular circumstances to the device of temperature measurement system on-line proving.
Background technique
The temperature sensors such as platinum resistance can generate in the long-term use temperature drift and when drift.Currently, industrial general logical
The periodic reinvestigation to platinum resistance key temperatures point resistance value is crossed to monitor its year drift value, industrial platinum resistance year drift value compared with
Greatly, year stability is at 0.1 DEG C.In actual metered in use, in order to guarantee that data are accurate and reliable, each metering cycle can be to work
Industry platinum resistance is carrying out aging process using temperature bound respectively.However, the platinum resistance temperature used in particular surroundings passes
Sensor can not do corresponding processing, and the year drift value of temperature is bigger than drift value in normal circumstances, in high-resolution hydrocode
Biggish error can be introduced in system.And the temperature measurement in particular surroundings is in the manufacture of China's metallurgy, material processing, electric system
Have of crucial importance in equal industrial circles and be widely applied, it is often more important that, with China's manned space flight, moon exploration program, core
The development of the Important Projects such as electrical engineering, to on-line proving technology, there is an urgent need.By in-orbit prolonged spatial synthesis ring
Border influence and temp measuring system itself temperature drift and when the influence floated, different degrees of reduction can occur for temperature measurement accuracy.Example
Such as 20 meters of high rail SAR satellite design lifetime 8 years, the high accuracy temperature control demand of rubidium clock and accelerometer, to temperature measurement system
Precision more stringent requirements are proposed.Therefore on-line proving is required harsher, it is desirable that can at the scene, it is real under particular surroundings
Existing self-calibration function.
Summary of the invention
The one kind proposed it is an object of the invention to realize the on-line proving for temperature measurement system under particular surroundings
It measures, calibrate integrated temperature measuring device.
Self calibration temp sensor device, including two kinds of phase-change material A and B, crust of the device, interlayer, insulating layer, kernel temperature
Sensor, self-heating apparatus are spent, device innermost layer is kernel temperature sensor, and phase-change material A is around kernel temperature sensor, phase
Become material B around phase-change material A, interlayer is arranged between phase-change material A and phase-change material B, wherein shell surround phase-change material B,
Equally arrange that interlayer, the surfaces externally and internally of all interlayers are coated with insulating layer between shell and phase-change material B；Self-heating apparatus arrangement
In ambient envelope.
Wherein, the adjustable change place of phase-change material A and B.
Further, the entirety of device is in cylindrical structure.
Wherein, the selection of two kinds of phase-change material A and phase-change material B can be determined according to specific actual application environment.Phase transformation material
The production of material should have well packaged, the expansion space of reserved 5% or more the own vol of every kind of material.
Wherein, for shell with interlayer material wall with a thickness of 1mm, material is chosen as stainless steel, and candidate materials are that copper etc. is led
Hot preferable material.
Wherein, interlayer surfaces externally and internally is coated with insulating layer, and insulating layer material can be ceramics, polyimide coating glue etc. and lead
The material of heat, good insulation preformance.
Wherein, PT1000 can be selected in kernel temperature sensor, and using four-wire system thermometric, the PT1000 accuracy of measuring reaches
0.03℃。
Wherein, self-heating apparatus, meets the supply of self-calibration institute's calorific requirement, and heater strip resistance value is no more than 60 Ω, operating voltage
For 24V, heating power is controlled within 10W, is realized in such a way that case surface plates heater strip.
Self calibration temp sensor device of the invention can realize the on-line proving to temperature measurement system under particular surroundings,
When needing to demarcate temperature measurement system, two kinds of phase-change materials are heated by self-heating apparatus, when every kind of phase transformation material
When material reaches phase point temperature, phase-change material will keep certain time under phase point temperature.Pass through the temperature of temperature sensor survey time
It spends and is compared with the phase point temperature of two kinds of phase-change material standards, so that the measurement error of temperature sensor itself is corrected, it is real
Now to the on-line proving of temperature measurement system.
Detailed description of the invention
Fig. 1 is self calibration temp sensor device feature cross-section schematic diagram of the invention.
Fig. 2 is self calibration temp sensor device structure Longitudinal cross section schematic of the invention.
In figure, 1 is shell and self-heating apparatus；2 be interlayer；3 be phase-change material A；4 be phase-change material B；5 be kernel temperature
Spend sensor.
Specific embodiment
Introduced below is the specific embodiment as content of the present invention, by specific embodiment to this hair
Bright content work further illustrates.Certainly, description following detailed description is only example different aspect of the invention
Content, but should not be understood as limitation the scope of the invention.
Referring to Fig. 1-2, Fig. 1 is self calibration temp sensor device feature cross-section schematic diagram of the invention；Fig. 2 is this hair
Bright self calibration temp sensor device structure Longitudinal cross section schematic.Self calibration temp sensor device of the invention, it is specific to wrap
Include phase-change material A3 and phase-change material B4, shell and self-heating apparatus 1, interlayer 2, insulating layer, kernel temperature sensor 5.Phase transformation
The selection of material is not limited solely to several, can be selected according to the temperature measurement range demarcated.The device is from inside to outside
Respectively kernel temperature sensor 1, phase-change material B4, interlayer 2, insulating layer, phase-change material A3, shell and heating device 1.The dress
Whole structure cylindrical is set, kernel temperature sensor is placed in the center phase-change material B4；Phase-change material A3 wraps up phase transformation material
Expect B4, and arranges interlayer between phase-change material A3 and B；Shell mechanism coating phase-change materials B4, shell and phase-change material B4 it
Between arrange that interlayer 2, the surfaces externally and internally of interlayer 2 are coated with insulating layer, outer surface of outer cover arranges self-heating apparatus.
The concrete operating principle of self calibration temp sensor device: self calibration temp sensor device is needed before use to degree
The structure of sensor carries out heat analysis, and is tested under hot vacuum environment, in conjunction with heat analysis result and test data, establishes
The thermometric to object can be realized in the relationship of transmission function between shell and sensor surface temperature after determining.Self calibration
Temp sensor device using when be affixed on testee surface, under the normal thermometric situation, self calibration temperature sensor is surveyed
The temperature value of amount is the true temperature of body surface.After a period of time, when need to be demarcated to temperature sensor, the dress
Starting self-heating apparatus is set, two kinds of phase-change materials are heated, undergo phase transition the material in device slowly respectively, is obtained
Survey is constantly corrected by the steady temperature field of two kinds of phase-change material standards and the temperature of temperature sensor survey time in stationary temperature field
Amount temperature function, to realize the on-line proving to measuring system.
Manufacture embodiment 1
In a particular embodiment, self calibration temp sensor device overall dimensions are Φ 9.8mm × 15mm, total weight
Less than 300g.Self calibration temperature sensor has good interfacial seal, is suitable for vacuum low-temperature environment and other special nothings
People's environment uses.Phase-change material can be selected according to use demand in the device, and shell and interlayer selection be not unique.
Assuming that calibration sensor temperature range is 10 DEG C~30 DEG C, then gallium can be selected in two kinds of phase-change material A and phase-change material B
(20.5 DEG C, the purity of gallium and tin is 99.99999%, the mass percent of tin for (30 DEG C, purity 99.99999%) and gallium tin
For 12%), wherein the diameter of phase-change material A is 7.8mm, the diameter of phase-change material B is 4.1mm.Phase-change material has good
Encapsulation, every kind of material reserve the expansion space of 5% or more own vol, and the candidate materials of phase-change material can be other eutectic points
Metal simple-substance or alloy.
In a specific embodiment, shell and interlayer wall thickness are 1mm, and material is chosen as stainless steel, candidate materials
For the preferable material of the thermal conductivity such as copper.
In a specific embodiment, the surfaces externally and internally of interlayer is coated with insulating layer, and insulating layer material is selected as being ceramics, polyamides
Imines coating adhesive etc. is thermally conductive, good insulation preformance material.Kernel temperature sensor selects PT1000, using four-wire system thermometric,
The PT1000 accuracy of measuring reaches 0.03 DEG C.
In a specific embodiment, self-heating apparatus resistance value is no more than 60 Ω, operating voltage 24V, heating power control
System within 10W, realize in such a way that heater strip is plated in outer surface by implementation.Data collection system is realized to temperature data
Acquisition.
Although the detailed description and description of the specific embodiments of the present invention are given above, it should be noted that
We can carry out various equivalent changes and modification to above embodiment according to the concept of the present invention, and generated function is made
It, should all be within protection scope of the present invention when with the spirit still covered without departing from specification and attached drawing.
Claims (10)
1. self calibration temp sensor device, including two kinds of phase-change material A and B, crust of the device, interlayer, insulating layer, interior nuclear temperature
Sensor, self-heating apparatus, device innermost layer are kernel temperature sensor, and phase-change material A is around kernel temperature sensor, phase transformation
Material B arranges interlayer around phase-change material A between phase-change material A and phase-change material B, wherein shell is around phase-change material B, outside
Equally arrange that interlayer, the surfaces externally and internally of all interlayers are coated with insulating layer between shell and phase-change material B；Self-heating apparatus is arranged in
Ambient envelope.
2. self calibration temp sensor device as described in claim 1, wherein phase-change material A and B is adjustable change place.
3. self calibration temp sensor device as described in claim 1, wherein the entirety of device is in cylindrical structure.
4. self calibration temp sensor device as described in claim 1, wherein two kinds of phase-change materials reserve own vol 5% with
On expansion space.
5. self calibration temp sensor device as described in claim 1, wherein shell is with interlayer material wall with a thickness of 1mm.
6. self calibration temp sensor device as described in claim 1, wherein sheathing material is selected as stainless steel or copper.
7. self calibration temp sensor device as described in claim 1, wherein interlayer surfaces externally and internally is coated with insulating layer, insulation
Layer material is ceramic layer or polyimide coating glue.
8. self calibration temp sensor device as described in claim 1, wherein PT1000 can be selected in kernel temperature sensor,
Using four-wire system thermometric.
9. self calibration temp sensor device as described in claim 1, wherein the heater strip resistance value of self-heating apparatus is no more than
60 Ω, heating power control within 10W, realize in such a way that case surface plates heater strip.
10. self calibration temp sensor device as described in claim 1, wherein phase-change material A and phase-change material B are respectively
Gallium and gallium tin.
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| CN201910066581.1A CN109855764B (en) | 2019-01-24 | 2019-01-24 | Self-calibrating temperature sensor device |
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| CN201910066581.1A CN109855764B (en) | 2019-01-24 | 2019-01-24 | Self-calibrating temperature sensor device |
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| CN109855764A true CN109855764A (en) | 2019-06-07 |
| CN109855764B CN109855764B (en) | 2020-05-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982330A (en) * | 2020-08-20 | 2020-11-24 | 德州尧鼎光电科技有限公司 | In-situ self-calibration type temperature sensing device |
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| DE102011016612A1 (en) * | 2011-04-06 | 2012-10-11 | Technische Universität Ilmenau | Method for calibration of temperature of thermometer e.g. radiation thermometer at fixed points, involves displacing temperature-sensitive element comprising reference material in thermal equilibrium state |
| CN103229032A (en) * | 2010-10-04 | 2013-07-31 | 株式会社理光 | Electric element |
| EP3244194A1 (en) * | 2015-03-18 | 2017-11-15 | Mayekawa Mfg. Co., Ltd. | Device for detecting phase transition changes and method for detecting phase transition changes in moisture-containing food sample |
| CN108027286A (en) * | 2015-07-29 | 2018-05-11 | 恩德莱斯+豪瑟尔韦泽尔有限商业两合公司 | Method and apparatus for thermometer field calibration |
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2019
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103229032A (en) * | 2010-10-04 | 2013-07-31 | 株式会社理光 | Electric element |
| CN104316210A (en) * | 2010-10-04 | 2015-01-28 | 株式会社理光 | Electric element, integrated element and electronic circuit |
| DE102011016612A1 (en) * | 2011-04-06 | 2012-10-11 | Technische Universität Ilmenau | Method for calibration of temperature of thermometer e.g. radiation thermometer at fixed points, involves displacing temperature-sensitive element comprising reference material in thermal equilibrium state |
| EP3244194A1 (en) * | 2015-03-18 | 2017-11-15 | Mayekawa Mfg. Co., Ltd. | Device for detecting phase transition changes and method for detecting phase transition changes in moisture-containing food sample |
| CN108027286A (en) * | 2015-07-29 | 2018-05-11 | 恩德莱斯+豪瑟尔韦泽尔有限商业两合公司 | Method and apparatus for thermometer field calibration |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982330A (en) * | 2020-08-20 | 2020-11-24 | 德州尧鼎光电科技有限公司 | In-situ self-calibration type temperature sensing device |
| CN111982330B (en) * | 2020-08-20 | 2022-05-17 | 德州尧鼎光电科技有限公司 | In-situ self-calibration type temperature sensing device |
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| CN109855764B (en) | 2020-05-26 |
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