DE4138460A1 - VACUUM-SEALED ENCLOSED THERMOCOUPLE - Google Patents
VACUUM-SEALED ENCLOSED THERMOCOUPLEInfo
- Publication number
- DE4138460A1 DE4138460A1 DE19914138460 DE4138460A DE4138460A1 DE 4138460 A1 DE4138460 A1 DE 4138460A1 DE 19914138460 DE19914138460 DE 19914138460 DE 4138460 A DE4138460 A DE 4138460A DE 4138460 A1 DE4138460 A1 DE 4138460A1
- Authority
- DE
- Germany
- Prior art keywords
- protective tube
- thermocouple
- probe
- wires
- thermally
- 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.)
- Granted
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 20
- 239000013078 crystal Substances 0.000 claims abstract description 9
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract description 3
- 230000001590 oxidative effect Effects 0.000 abstract description 2
- 230000035699 permeability Effects 0.000 abstract description 2
- 239000000523 sample Substances 0.000 abstract 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910010293 ceramic material Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- MUJOIMFVNIBMKC-UHFFFAOYSA-N fludioxonil Chemical compound C=12OC(F)(F)OC2=CC=CC=1C1=CNC=C1C#N MUJOIMFVNIBMKC-UHFFFAOYSA-N 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 229910000679 solder Inorganic materials 0.000 description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910000629 Rh alloy Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- 229910001260 Pt alloy Inorganic materials 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 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
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors 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
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft einen innerhalb eines Schutzrohres angeordnetes Thermoelement.The present invention relates to an inside Protective tube arranged thermocouple.
Derartige Elemente, die aus zwei an zwei Stellen miteinander verlöteten, üblicherweise Drahtform aufweisenden Stücken aus verschiedenen Metallen bzw. Metallegierungen bestehen, werden zu Temperaturmessungen verwendet, da in ihnen eine der Temperatur proportionale Spannung, die sogenannte Thermospannung, erzeugt wird, wenn die beiden Lötstellen verschiedenen Temperaturen ausgesetzt werden. Zum Schutz vor mechanischen Beschädigungen ist ihre Anordnung innerhalb eines Schutzrohres üblich. Bei Auswahl geeigneter Materialien, z. B. einer Platin-Rhodium/Platin-Rhodium-Paarung (mit jeweils unterschiedlichen Legierungsanteilen) können Messungen bis zu ca. 1820°C durchgeführt werden.Such elements that consist of two in two places with each other soldered, usually wire-shaped pieces different metals or metal alloys exist used for temperature measurements, because one of the Temperature proportional voltage, the so-called Thermal voltage is generated when the two solder joints exposed to different temperatures. To protect against mechanical damage is their arrangement within a Protective tube common. When selecting suitable materials, e.g. B. a platinum-rhodium / platinum-rhodium pairing (with each different alloy proportions) can measure up to approx. 1820 ° C.
Aufgabe der vorliegenden Erfindung ist ein Thermoelement, das jenseits der genannten Temperatur auch in oxidierender Atmosphäre eingesetzt werden kann, nachdem jetzt elektrische Heizer zur Verfügung stehen, mit deren Hilfe höhere Temperaturen im praktischen Betrieb erreicht werden können.The object of the present invention is a thermocouple beyond the specified temperature also in oxidizing Atmosphere can now be used after electrical Heaters are available, with the help of higher ones Temperatures can be reached in practical operation.
Die Lösung dieser Aufgabe erfolgt dadurch, daß das Schutzrohr aus einer transparenten Keramik oder einem transparenten Oxidkristall mit einem Schmelzpunkt oberhalb der zu messenden Temperatur besteht. Als geeignete Werkstoffe, die sowohl die erforderliche Temperaturfestigkeit aufweisen als auch im Infrarotbereich des elektromagnetischen Wellenspektrums die erforderliche Durchlässigkeit aufweisen, kommen z. B. Saphir oder Zirkonoxid-Einkristalle in Frage. Diese Werkstoffe weisen neben einer hohen Korrosionsbeständigkeit eine gute mechanische Festigkeit auf und bieten dem Durchgang der Wärmestrahlung kein nennenswertes Hindernis.This problem is solved in that the protective tube made of a transparent ceramic or a transparent Oxide crystal with a melting point above that to be measured Temperature. As suitable materials that both have the required temperature resistance as well Infrared region of the electromagnetic wave spectrum have the required permeability, z. B. Sapphire or zirconia single crystals in question. These materials show in addition to high corrosion resistance, good mechanical strength and provide the passage of the Thermal radiation is not a significant obstacle.
Die das Thermoelement bildenden Drähte werden innerhalb des Schutzrohres zweckmäßigerweise gehaltert, um ihre Widerstands fähigkeit gegen mechanische Einwirkungen von außen zu erhöhen, insbesondere ein Kurzschließen zu vermeiden. In weiterer Ausgestaltung der Erfindung sind auch diese Halterungen aus der gleichen Keramik wie das äußere Schutzrohr hergestellt. Beeinträchtigungen der Warmfestigkeit, die sonst durch die unterschiedlichen Wärmedehnungen zweier Materialien auftreten könnten, werden so vermieden.The wires forming the thermocouple are inside the Protective tube conveniently held to their resistance ability to increase against mechanical influences from outside, in particular to avoid short-circuiting. In another Embodiment of the invention, these brackets are made made of the same ceramic as the outer protective tube. Impairment of the heat resistance that would otherwise be caused by the different thermal expansions of two materials occur could be avoided.
In weiterer Ausgestaltung der Erfindung ist das Schutzrohr evakuiert und vakuumdicht verschlossen. Die Korrosion der Thermoelemente wird so vermieden.In a further embodiment of the invention, the protective tube evacuated and sealed vacuum-tight. The corrosion of the This avoids thermocouples.
In einer alternativen Ausführungsform ist die Atmosphäre innerhalb des Schutzrohres inert, und besteht z. B. aus Argon, Helium oder anderen Gasen. Auch so werden die Drähte des Thermoelementes vor Korrosion geschützt.In an alternative embodiment, the atmosphere is inert within the protective tube, and z. B. from argon, Helium or other gases. Even so, the wires of the Thermocouple protected from corrosion.
In weiterer Ausgestaltung der Erfindung besteht das Schutzrohr aus einem Einkristall bzw. ist aus ihm herausgearbeitet. Aus den o. g. Stoffen lassen sich ohne besondere Schwierigkeiten Einkristalle benötigter Größe züchten, die gegebenenfalls mittels geeigneter Verfahren, z. B. durch Ultraschallbohren, formgebend bearbeitet werden können.In a further embodiment of the invention there is the protective tube from a single crystal or is worked out of it. Out the above Fabrics can be made without any particular difficulty Grow single crystals of the required size, if necessary by means of suitable methods, e.g. B. by ultrasonic drilling, can be shaped.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt, und zwar zeigt diese das erfindungsgemäße Thermoelement im Axiallängsschnitt.An embodiment of the invention is in the drawing shown, and this shows the invention Thermocouple in axial longitudinal section.
Es besteht aus zwei Drähten 1, 2 aus Platin/Rhodium- Legierungen oder Wolfram/Rhodium-Legierungen für den Einsatz bei höheren Temperaturen. Diese sind an einer Lötstelle 3 miteinander verbunden. Die Drähte 1, 2 sind in Halterungen 4 gelagert und diese wiederum in einem Schutzrohr 5. Halterungen 4 und Schutzrohr bestehen z. B. aus Aluminiumoxid, und sind vorzugsweise aus einem Einkristall (Saphir) dieses Stoffes herausgearbeitet. Das Schutzrohr 5 ist an seinem oberen Ende mit einem Deckel 6 aus jeweils einem hochtemperaturbeständi gen, aber nicht notwendigerweise für Wärmestrahlung besonders durchlässigen Stoff vakuumdicht verschlossen. Die Drähte 1, 2 werden durch Bohrungen im Deckel 6 nach außerhalb und schließlich zu hier nicht gezeigten Anzeigegeräten für die durch die Einwirkung der Wärme auf die erste Lötstelle 3 erzeugte Thermospannung geführt, z. B. zu einem Drehspulgalva nometer. Die Halterungen 4 sind zweckmäßigerweise am Deckel 6 angelötet, und ebenso wird letzterer mit dem Schutzrohr 5 verbunden. Wegen der erforderlichen Isolierung der Drähte 1, 2 finden hierfür vorzugsweise Glaslote Verwendung, doch ist auch die Verwendung von keramischen Loten bzw. Klebern möglich.It consists of two wires 1 , 2 made of platinum / rhodium alloys or tungsten / rhodium alloys for use at higher temperatures. These are connected to one another at a solder joint 3 . The wires 1 , 2 are mounted in holders 4 and these in turn in a protective tube 5 . Brackets 4 and protective tube exist z. B. made of aluminum oxide, and are preferably worked out of a single crystal (sapphire) of this substance. The protective tube 5 is closed at its upper end with a cover 6 from a high temperature resistant gene, but not necessarily particularly permeable to heat radiation, particularly vacuum-tight material. The wires 1 , 2 are guided through holes in the cover 6 to the outside and finally to display devices, not shown here, for the thermal voltage generated by the action of heat on the first soldering point 3 , for. B. to a moving coil galva nometer. The brackets 4 are expediently soldered to the cover 6 , and the latter is also connected to the protective tube 5 . Because of the required insulation of the wires 1 , 2 , glass solders are preferably used for this, but the use of ceramic solders or adhesives is also possible.
Claims (5)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19914138460 DE4138460C2 (en) | 1991-11-22 | 1991-11-22 | Thermocouple arranged inside a protective tube |
PCT/DE1992/000942 WO1993010427A1 (en) | 1991-11-22 | 1992-11-12 | Vacuum-tight probe for a thermal element |
JP5508874A JPH07501144A (en) | 1991-11-22 | 1992-11-12 | Sealed heat sensitive part of thermocouple |
EP92923077A EP0613551A1 (en) | 1991-11-22 | 1992-11-12 | Vacuum-tight probe for a thermal element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19914138460 DE4138460C2 (en) | 1991-11-22 | 1991-11-22 | Thermocouple arranged inside a protective tube |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4138460A1 true DE4138460A1 (en) | 1993-05-27 |
DE4138460C2 DE4138460C2 (en) | 1994-02-10 |
Family
ID=6445374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19914138460 Expired - Fee Related DE4138460C2 (en) | 1991-11-22 | 1991-11-22 | Thermocouple arranged inside a protective tube |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0613551A1 (en) |
JP (1) | JPH07501144A (en) |
DE (1) | DE4138460C2 (en) |
WO (1) | WO1993010427A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6059453A (en) * | 1998-04-20 | 2000-05-09 | Rosemount Inc. | Temperature probe with sapphire thermowell |
WO2001027579A1 (en) * | 1999-10-13 | 2001-04-19 | Texaco Development Corporation | Sapphire reinforced thermocouple protection tube |
US7131768B2 (en) * | 2003-12-16 | 2006-11-07 | Harco Laboratories, Inc. | Extended temperature range EMF device |
WO2010063682A1 (en) * | 2008-12-02 | 2010-06-10 | Temperaturmesstechnik Geraberg Gmbh | Temperature sensor, in particular for turbochargers |
DE202011001280U1 (en) | 2011-01-10 | 2012-04-18 | Klaus Irrgang | Universal high temperature element |
DE102011083437A1 (en) | 2011-01-10 | 2012-07-12 | Klaus Irrgang | Thermoelectric temperature sensor for detecting exhaust gas temperature of exhaust gas line in turbo supercharger for internal combustion engine, has shell element provided with recess into which thermal bead is partially projected |
DE202012104929U1 (en) | 2012-12-18 | 2013-02-12 | Klaus Irrgang | Thermoelectric high-temperature sensor with a sheathed cable |
DE202013100708U1 (en) | 2013-02-18 | 2013-04-05 | Klaus Irrgang | Temperature sensor for fast temperature changes |
DE202015008966U1 (en) | 2015-03-31 | 2016-05-02 | Temperaturmeßtechnik Geraberg GmbH | Modular structured high-temperature sensor |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4418472C2 (en) * | 1994-05-20 | 1998-03-19 | Hartmann & Braun Ag | Probe for temperature measurement of gases or liquids |
WO2000000797A1 (en) | 1998-06-26 | 2000-01-06 | Texaco Development Corporation | Thermocouple for use in gasification process |
JP4484129B2 (en) * | 2000-11-16 | 2010-06-16 | いすゞ自動車株式会社 | thermocouple |
CZ302212B6 (en) * | 2006-03-29 | 2010-12-22 | CRYTUR@@spol@@s@r@@o | Thermocouple probe with a casing for measuring temperature values in extreme conditions |
DE102010063062A1 (en) | 2010-12-14 | 2012-06-14 | Endress + Hauser Wetzer Gmbh + Co. Kg | Protective tube inner part for a thermometer with a protective tube |
DE102011089942A1 (en) | 2011-12-27 | 2013-06-27 | Endress + Hauser Wetzer Gmbh + Co. Kg | Receiving device for measuring insert, has mold portion for fastening receiving device to pipeline, where mold portion has bore, in which component is inserted from end of bore |
CN102703967A (en) * | 2012-06-05 | 2012-10-03 | 湖南红太阳光电科技有限公司 | Thermocouple device for polycrystal ingot furnace |
DE102012112579A1 (en) | 2012-12-18 | 2014-06-18 | Endress + Hauser Wetzer Gmbh + Co Kg | Receiving device, particularly protective tube, for measuring insert, particularly for determining temperature of measuring material in process container, has two sections, which are separated from each other through passage |
JP6452606B2 (en) | 2013-08-08 | 2019-01-16 | 株式会社フルヤ金属 | thermometer |
US9598976B2 (en) | 2014-01-14 | 2017-03-21 | Solar Turbines Incorporated | Ceramic pedestal and shield for gas path temperature measurement |
DE112014000282B4 (en) * | 2014-01-21 | 2017-10-12 | Okazaki Manufacturing Company | Temperature sensor for high temperatures |
CN107221595B (en) * | 2017-07-05 | 2019-06-07 | 徐荣华 | Vacuum Heat fulgurite |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1489263A1 (en) * | 1964-11-19 | 1969-08-28 | Corhart Refractories Co | Immersible thermocouple |
DE2021044B2 (en) * | 1969-08-08 | 1972-02-10 | Egyesult Izzolampa es Villamossagi Reszvenytarsasag, Budapest | THERMOCOUPLE WIRE THERMOCOUPLE AND THERMODETECTORS |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2948766A (en) * | 1955-04-30 | 1960-08-09 | Degussa | Tungsten/rhenium thermocouples |
GB1131145A (en) * | 1966-05-18 | 1968-10-23 | Atomic Energy Authority Uk | Improvements in or relating thermoelectric devices |
AT329299B (en) * | 1974-01-18 | 1976-05-10 | Plansee Metallwerk | ARRANGEMENT FOR TEMPERATURE MEASUREMENT OF METAL MELT |
DE3528161C1 (en) * | 1985-08-06 | 1986-10-23 | Degussa Ag, 6000 Frankfurt | Thermocouple for measuring temperatures in vacuum furnaces |
-
1991
- 1991-11-22 DE DE19914138460 patent/DE4138460C2/en not_active Expired - Fee Related
-
1992
- 1992-11-12 WO PCT/DE1992/000942 patent/WO1993010427A1/en not_active Application Discontinuation
- 1992-11-12 EP EP92923077A patent/EP0613551A1/en not_active Ceased
- 1992-11-12 JP JP5508874A patent/JPH07501144A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1489263A1 (en) * | 1964-11-19 | 1969-08-28 | Corhart Refractories Co | Immersible thermocouple |
DE2021044B2 (en) * | 1969-08-08 | 1972-02-10 | Egyesult Izzolampa es Villamossagi Reszvenytarsasag, Budapest | THERMOCOUPLE WIRE THERMOCOUPLE AND THERMODETECTORS |
Non-Patent Citations (1)
Title |
---|
DE-Z.: VDI-Z., 1969, Nr. 24, S. 1706-1712 * |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6059453A (en) * | 1998-04-20 | 2000-05-09 | Rosemount Inc. | Temperature probe with sapphire thermowell |
WO2001027579A1 (en) * | 1999-10-13 | 2001-04-19 | Texaco Development Corporation | Sapphire reinforced thermocouple protection tube |
US6536950B1 (en) | 1999-10-13 | 2003-03-25 | Texaco Inc. | Sapphire reinforced thermocouple protection tube |
US7131768B2 (en) * | 2003-12-16 | 2006-11-07 | Harco Laboratories, Inc. | Extended temperature range EMF device |
WO2010063682A1 (en) * | 2008-12-02 | 2010-06-10 | Temperaturmesstechnik Geraberg Gmbh | Temperature sensor, in particular for turbochargers |
DE202011001280U1 (en) | 2011-01-10 | 2012-04-18 | Klaus Irrgang | Universal high temperature element |
DE102011083437A1 (en) | 2011-01-10 | 2012-07-12 | Klaus Irrgang | Thermoelectric temperature sensor for detecting exhaust gas temperature of exhaust gas line in turbo supercharger for internal combustion engine, has shell element provided with recess into which thermal bead is partially projected |
DE102011083437B4 (en) * | 2011-01-10 | 2013-07-18 | Klaus Irrgang | Universal high temperature element |
DE202012104929U1 (en) | 2012-12-18 | 2013-02-12 | Klaus Irrgang | Thermoelectric high-temperature sensor with a sheathed cable |
DE202013100708U1 (en) | 2013-02-18 | 2013-04-05 | Klaus Irrgang | Temperature sensor for fast temperature changes |
WO2014125078A1 (en) | 2013-02-18 | 2014-08-21 | Klaus Irrgang | Temperature sensor for rapid temperature changes |
DE202015008966U1 (en) | 2015-03-31 | 2016-05-02 | Temperaturmeßtechnik Geraberg GmbH | Modular structured high-temperature sensor |
Also Published As
Publication number | Publication date |
---|---|
WO1993010427A1 (en) | 1993-05-27 |
EP0613551A1 (en) | 1994-09-07 |
DE4138460C2 (en) | 1994-02-10 |
JPH07501144A (en) | 1995-02-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |