DE7111837U - Measuring sensors for devices for measuring temperatures - Google Patents
Measuring sensors for devices for measuring temperaturesInfo
- Publication number
- DE7111837U DE7111837U DE7111837U DE7111837DU DE7111837U DE 7111837 U DE7111837 U DE 7111837U DE 7111837 U DE7111837 U DE 7111837U DE 7111837D U DE7111837D U DE 7111837DU DE 7111837 U DE7111837 U DE 7111837U
- Authority
- DE
- Germany
- Prior art keywords
- metal
- measuring
- wire
- insulating material
- electrically insulating
- 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.)
- Expired
Links
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 claims description 3
- 239000000969 carrier Substances 0.000 claims description 2
- 239000010409 thin film Substances 0.000 claims description 2
- 235000010716 Vigna mungo Nutrition 0.000 claims 1
- 240000002223 Vigna mungo Species 0.000 claims 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 241000216690 Gracula religiosa Species 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- -1 ThOp Chemical compound 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 201000010915 glioblastoma multiforme Diseases 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Thermistors And Varistors (AREA)
Description
*« pt 1.192* «Pt 1,192
Mz/daMz / da
Kernforschungsanlage Julien Gesellschaft mit beschränkter Haftung Gbm-Hilfe-nmeldung: G 71 H 837.1Nuclear Research Facility Julien Limited Liability Company GBM help message: G 71 H 837.1
Meßfühler für Einrichtungen zur Messung von TemperaturenMeasuring sensors for devices for measuring temperatures
Die Erfindung bezieht sich auf einen Meßfühler aus Metall für eine Einrichtung zur Temperaturmessung, bei der die infolge Temperatureinwirkung veränderliche Rauschspannung des von dem Metall gebildeten elektrischen Widerstandes gemessen wird. Dabei haben sich unter anderem Reinmetalle, wie Wolfram, Tantal, Molybdän, Niob, Titan, Zirkonium und Platin sowie Legierungen von Chrom, Nickel und Eisen, als geeignet erwiesen. Der Durchmesser der zu Drähten verformten Meßfühler liegt zwischen 5 .u und 5o .u. Die bisher hauptsächlich aus Platin gefertigten Meßfühler hatten den Nachteil, daß die Längenausdehnung in einer Reihe von Fällen so ungünstig und die Handhabung so schwierig war, daß dadurch die Meßgenauigkeit ungünstig beeinflußt und/oder die Verwendung erschwert wurde.The invention relates to a metal sensor for a device for temperature measurement, in which the result Temperature effect, variable noise voltage of the electrical resistance formed by the metal measured will. Among other things, pure metals such as tungsten, tantalum, molybdenum, niobium, titanium, zirconium and platinum as well Alloys of chromium, nickel and iron have been found to be suitable. The diameter of the probe deformed into wires lies between 5 .u and 5o .u. The so far mainly from Platinum-made measuring sensors had the disadvantage that the linear expansion was so unfavorable and in a number of cases the handling was so difficult that the measurement accuracy was adversely affected and / or the use was made difficult.
Aufgabe der Erfindung ist es daher, einen Meßfühler zu schaffen, der bei gleichem elektrischen Widerstand des verwendeten Metalls einen sehr viel geringeren Raum einnimmt.The object of the invention is therefore to create a sensor which takes up much less space with the same electrical resistance of the metal used.
Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß das Metall in an sich bekannter Weise zu einem dünnen Draht verformt ist, wobei der Draht über die Länge des Meßfühlers nach Art einer Spirale, Wendel oder dergleichen und/oder mäanderförmig geführt ist.This object is achieved according to the invention in that the metal is deformed into a thin wire in a manner known per se is, the wire over the length of the sensor in the manner of a spiral, helix or the like and / or meandering is led.
711183719.117t711183719.117t
Eine bevorzugte Ausführungsform des Meßfühlers gemäß der Erfindung, die deshalb besonders vorteilhaft ist, weil dadurch eine leichtere Handhabung ermöglicht wird und zugleich eine gute Isolierung erzielt wird, besteht darin, daß der Draht in einem, aus einem elektrisch isolierenden Werkstoff, wie AIpO,, BeO, ThOp, MgO oder dergleichen, gebildeten, mehrere Bohrungen aufweisenden Röhrchen geführt ist. Eine andere Variante, die gleichfalls sehr vorteilhaft ist, besteht darin, daß der Draht in einem elektrisch isolierenden Werkstoff, wie Al2O5 oder dergleichen, eing^sintert ist. Als vorteilhaft hat sich ebenfalls eine Ausführungsform des Meßfühlers gemäß der Erfindung erwiesen, be~ der das Metall als dünner Film auf einem Träger aus elektrisch isolierendem Werkstoff aufgebracht ist.A preferred embodiment of the sensor according to the invention, which is particularly advantageous because it enables easier handling and at the same time good insulation is achieved, consists in that the wire is made of an electrically insulating material such as AlpO ,, BeO , ThOp, MgO or the like, formed, multiple bores having tubes is performed. Another variant, which is also very advantageous, consists in that the wire is sintered in an electrically insulating material such as Al 2 O 5 or the like. An embodiment of the measuring sensor according to the invention has also proven to be advantageous in which the metal is applied as a thin film on a carrier made of electrically insulating material.
Wie sich im Einsatz gezeigt hat, weist der Meßfühler gemäß der Erfindung gegenüber den bisher bekannten Meßfühlern eine hohe Lebensdauer auf.As has been shown in use, the sensor according to FIG Invention over the previously known sensors on a long life.
Claims (4)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE7111837U true DE7111837U (en) | 1974-12-19 |
Family
ID=1266171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE7111837U Expired DE7111837U (en) | Measuring sensors for devices for measuring temperatures |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE7111837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3219168A1 (en) * | 1982-05-21 | 1983-11-24 | Kernforschungsanlage Juelich | MEASURING RESISTANCE FOR NOISE THERMOMETER |
-
0
- DE DE7111837U patent/DE7111837U/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3219168A1 (en) * | 1982-05-21 | 1983-11-24 | Kernforschungsanlage Juelich | MEASURING RESISTANCE FOR NOISE THERMOMETER |
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