EP3729031A1 - Thermoelement, temperaturmesssystem und verfahren zur herstellung eines thermoelements - Google Patents
Thermoelement, temperaturmesssystem und verfahren zur herstellung eines thermoelementsInfo
- Publication number
- EP3729031A1 EP3729031A1 EP18830360.6A EP18830360A EP3729031A1 EP 3729031 A1 EP3729031 A1 EP 3729031A1 EP 18830360 A EP18830360 A EP 18830360A EP 3729031 A1 EP3729031 A1 EP 3729031A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conductor
- thermocouple
- insulation sheath
- insulation
- temperature
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000004020 conductor Substances 0.000 claims abstract description 110
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000009413 insulation Methods 0.000 claims description 63
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229910000570 Cupronickel Inorganic materials 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 description 10
- 238000009529 body temperature measurement Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
- G01K7/04—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples the object to be measured not forming one of the thermoelectric materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
- G01K7/04—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples the object to be measured not forming one of the thermoelectric materials
- G01K7/06—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples the object to be measured not forming one of the thermoelectric materials the thermoelectric materials being arranged one within the other with the junction at one end exposed to the object, e.g. sheathed type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
- G01K1/18—Special arrangements for conducting heat from the object to the sensitive element for reducing thermal inertia
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
- G01K7/10—Arrangements for compensating for auxiliary variables, e.g. length of lead
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/01—Manufacture or treatment
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
- H10N10/17—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the structure or configuration of the cell or thermocouple forming the device
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/80—Constructional details
- H10N10/81—Structural details of the junction
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/80—Constructional details
- H10N10/85—Thermoelectric active materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/4901—Structure
- H01L2224/4903—Connectors having different sizes, e.g. different diameters
Definitions
- the present invention relates to a thermocouple for measuring the temperature of a high-voltage component, comprising a metallic first conductor of a first material and a metallic second conductor of a second material, wherein the first material is different from the second material.
- the invention further relates to a temperature measuring system with a thermocouple and to a method for producing a thermocouple.
- thermocouple according to claim 1 the temperature measuring system according to claim 10 and the method for producing a thermocouple according to claim 11.
- Further advantages of the invention will become apparent from the dependent claims, the description and the drawings.
- features and details which are described in connection with the thermocouple of course, also in connection with the temperature measuring system according to the invention and the method according to the invention for producing Position of the thermocouple and in each case vice versa, so with respect to the revelation to the individual aspects of the invention always reciprocal reference is or can be made.
- thermocouples When using thermocouples, very small voltage differences in the range of a few pV / K must be measured very accurately.
- the focus has hitherto always been on the shielding, short cable lengths, electrical insulation and / or filtering of the small measuring signals.
- the cause lies in the asymmetry of the material pairing.
- thermocouples of arbitrary length which can act with common-mode interference, even without shielding, to deliver a fault-free and interference-proof measuring signal.
- an insulation of the probe tip of the thermocouple and A shielding can be omitted if the structure of the lines is electrically symmetric, that is, if the electrical resistance per length of the first line is equal to the electrical resistance per length of the second line.
- the length of the first line is equal to the length of the second line.
- the absolute electrical resistance of the first line is particularly preferably equal to the absolute electrical resistance of the second line.
- temperature measurements at high-voltage level or in the case of high-frequency common-mode noise can thus be measured without interference, without additional thermal inertia or time delay.
- the length of the measuring cable does not influence the susceptibility or the possible measuring error.
- thermocouple is suitable for the reliable temperature measurement of a high-voltage component in the high-voltage range as well as in the high-voltage range.
- a thermoelectric measuring device for detecting a temperature difference.
- the thermocouple according to the invention thus differs in particular from the technical field of the pyroelectric measuring systems, which are designed to determine temperature changes.
- the detection of the temperature difference is to be understood that is measured at the same time at two different locations and due to the measured voltage, the temperature difference between the two locations can be determined. At a known temperature of the first location thus the temperature of the second location can be determined.
- the determination of temperature change is to be understood in such a way that it is measured at the same location at different times and only the difference of the temperature at the different times is determined, the actual temperature at the measuring location is not determined.
- the temperature measurement of the high-voltage component is preferably to be understood as meaning a measurement of a changing temperature at a high-voltage component, in particular a measurement of a changing temperature of at least one portion of the high-voltage component.
- the metallic first conductor may be completely or substantially entirely made of metal.
- the metallic second conductor can be completely or essentially completely made of metal.
- thermocouple according to the invention that the first conductor has a higher specific resistance than the second conductor and the cross-sectional area of the first conductor by the factor or essentially by the factor by which the specific resistance of the first conductor is higher than the resistivity of the second conductor is greater than the cross-sectional area of the second conductor. That is, the wire cross sections should be proportional to the resistivities. This results in two lines with the same resistance as possible per unit length. As a result, the electrical symmetry can be realized particularly reliably with the desired mechanical asymmetry. Corresponding interference-free measured values can be expected in such a system.
- a temperature measurement system for measuring a temperature.
- the temperature measurement system includes a thermocouple as described in detail above, an analog-to-digital converter, and a microprocessor in signal communication with the analog-to-digital converter.
- a temperature measuring system according to the invention brings about the same advantages as have been described in detail with reference to the thermocouple according to the invention.
- Under the microprocessor can be understood in general an electronic control and regulation unit.
- the microprocessor is preferably arranged in an insulated manner by insulation, in particular by electrical insulation, in an electrically insulated manner from the analog-to-digital converter. That is, the insulation is arranged for electrical isolation between the microprocessor and the analog-to-digital converter.
- thermocouple 1 shows a sectional view of a thermocouple according to an inventive embodiment
- FIG. 2 shows an equivalent circuit diagram for a temperature measuring system according to the invention.
- FIG. 1 schematically shows a thermocouple 1 for measuring the temperature of a high-voltage component.
- the thermocouple 1 has a metallic first conductor 2 made of chromium nickel and a metallic second conductor 3 made of nickel.
- the first conductor 2 has a larger cross-sectional area than the second conductor 3.
- the first conductor 2 and the second conductor 3 are mechanically asymmetrical to each other.
- the first conductor 2 and the second conductor 3 are designed to be electrically symmetrical to one another by the selected metal pairing.
- the first conductor 2 made of chromium nickel on a higher resistivity than the second conductor 3 made of nickel, wherein the cross-sectional area of the first conductor 2 for a as ideal as possible electrical symmetry by the factor or substantially by the factor by which the specific resistance of the first conductor 2 is higher than the resistivity of the second conductor 3, greater than the cross-sectional area of the second conductor 3.
- the cross-sectional area of the first conductor 2 for a as ideal as possible electrical symmetry by the factor or substantially by the factor by which the specific resistance of the first conductor 2 is higher than the resistivity of the second conductor 3, greater than the cross-sectional area of the second conductor 3.
- the first conductor 2 and the second conductor 3 are each configured in the form of a wire with a round cross section.
- the first conductor 2 and the second conductor 3 are designed to be correspondingly flexible.
- a tubular first insulation sheath 4 is configured around the first conductor 2
- a tubular second insulation sheath 5 is configured around the second conductor 3.
- a common third insulation jacket 6 is configured around the first conductor 2, the second conductor 3, the first insulation jacket 4 and the second insulation jacket 5.
- the third insulation sheath 6 is in direct contact with the first insulation sheath 4 and the second insulation sheath 5, the first conductor 2 passing through the first insulation sheath 4 and the second conductor 3 passing through the second insulation sheath 5 from the third insulation sheath 5 Isolationsummantelung are spaced.
- the first conductor 2 and the second conductor 3 are simply twisted together, including the respective insulation coating 4, 5.
- An outer peripheral surface of the first insulation sheath 4 abuts against an outer peripheral surface of the second insulation sheath 5.
- thermocouple 1 a method for producing the illustrated thermocouple 1 or the inventive section of the thermocouple 1 will be described below.
- a first step S1 the first conductor 2 with the first insulation sheath 4 and the second conductor 3 with the second insulation sheath 5 are provided for this purpose.
- a subsequent second step S2 the first conductor 2 in the first insulation sheath 4 and the second conductor 3 in the second insulation sheath 5 are twisted together. After that, the twisted conductors 2, 3, which are located in the respective insulation jacket 4, 5, are encased with the third insulation jacket 6.
- FIG. 2 shows an equivalent circuit diagram of a temperature measuring system 10 for measuring a temperature on a high-voltage measurement object by means of the above-described thermocouple 1.
- the temperature measuring system has the thermocouple 1, an analog-to-digital converter 7 and a microprocessor 9 in signal communication with the analog-to-digital converter 7.
- the microprocessor 9 is electrically isolated from the analog-to-digital converter 7 by an insulation 8.
- the first conductor 2 of the temperature measuring system 10 has a different electrical resistance than the second conductor 3.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA51060/2017A AT520758B1 (de) | 2017-12-21 | 2017-12-21 | Thermoelement, Temperaturmesssystem und Verfahren zur Herstellung eines Thermoelements |
PCT/AT2018/060314 WO2019119013A1 (de) | 2017-12-21 | 2018-12-21 | Thermoelement, temperaturmesssystem und verfahren zur herstellung eines thermoelements |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3729031A1 true EP3729031A1 (de) | 2020-10-28 |
Family
ID=65003029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18830360.6A Withdrawn EP3729031A1 (de) | 2017-12-21 | 2018-12-21 | Thermoelement, temperaturmesssystem und verfahren zur herstellung eines thermoelements |
Country Status (6)
Country | Link |
---|---|
US (1) | US20200378839A1 (de) |
EP (1) | EP3729031A1 (de) |
JP (1) | JP2021507255A (de) |
CN (1) | CN111492214A (de) |
AT (1) | AT520758B1 (de) |
WO (1) | WO2019119013A1 (de) |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2537198A1 (de) * | 1975-08-21 | 1977-07-14 | Isabellenhuette Heusler Kg | Thermoelement-ausgleichsleitung |
FR2382000A1 (fr) * | 1977-02-25 | 1978-09-22 | Auxitrol | Rampe thermocouples pour la mesure de la moyenne de plusieurs temperatures |
DE3045652C2 (de) * | 1980-12-04 | 1993-11-25 | Koertvelyessy Laszlo | Thermopaar aus unterschiedlich dünnen Thermodrähten |
GB8705142D0 (en) * | 1987-03-05 | 1987-04-08 | Smiths Industries Plc | Thermocouple assemblies |
FR2656923B3 (fr) * | 1990-01-05 | 1992-01-03 | Kuritnyk Igor | Thermocouple. |
CN2063228U (zh) * | 1990-03-09 | 1990-10-03 | 伊格·佩特劳维克·库里特克 | 热电偶 |
CN200941640Y (zh) * | 2006-08-10 | 2007-08-29 | 赵成刚 | 一种显示温度的手机 |
CN100587425C (zh) * | 2007-01-25 | 2010-02-03 | 袁勤华 | 铜钛-铜镍补偿导线 |
DE102011008176B4 (de) * | 2011-01-10 | 2013-02-07 | Klaus Irrgang | Thermoelektrischer Temperaturfühler |
DE102012105547A1 (de) * | 2012-06-26 | 2014-01-16 | Endress + Hauser Wetzer Gmbh + Co. Kg | Temperaturmessvorrichtung, Messelement für eine Temperaturmessvorrichtung und Verfahren zum Herstellen der Temperaturmessvorrichtung |
US10184843B2 (en) * | 2015-04-30 | 2019-01-22 | Analysis And Measurement Services Corporation | Thermal protection systems material degradation monitoring system |
CN205808577U (zh) * | 2016-06-22 | 2016-12-14 | 中国航空工业集团公司沈阳发动机设计研究所 | 一种绝缘热电偶 |
JP6152463B1 (ja) * | 2016-07-29 | 2017-06-21 | 株式会社フルヤ金属 | 熱電対 |
CN107300425B (zh) * | 2017-07-06 | 2019-12-20 | 北京大学 | 一种温度传感器以及温度测量方法 |
-
2017
- 2017-12-21 AT ATA51060/2017A patent/AT520758B1/de active
-
2018
- 2018-12-21 EP EP18830360.6A patent/EP3729031A1/de not_active Withdrawn
- 2018-12-21 WO PCT/AT2018/060314 patent/WO2019119013A1/de unknown
- 2018-12-21 US US16/955,069 patent/US20200378839A1/en not_active Abandoned
- 2018-12-21 CN CN201880081934.9A patent/CN111492214A/zh active Pending
- 2018-12-21 JP JP2020534544A patent/JP2021507255A/ja not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
JP2021507255A (ja) | 2021-02-22 |
CN111492214A (zh) | 2020-08-04 |
AT520758A1 (de) | 2019-07-15 |
WO2019119013A1 (de) | 2019-06-27 |
AT520758B1 (de) | 2021-07-15 |
US20200378839A1 (en) | 2020-12-03 |
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