DE2545812A1 - Verfahren und vorrichtung zum nachweisen von temperaturaenderungen - Google Patents
Verfahren und vorrichtung zum nachweisen von temperaturaenderungenInfo
- Publication number
- DE2545812A1 DE2545812A1 DE19752545812 DE2545812A DE2545812A1 DE 2545812 A1 DE2545812 A1 DE 2545812A1 DE 19752545812 DE19752545812 DE 19752545812 DE 2545812 A DE2545812 A DE 2545812A DE 2545812 A1 DE2545812 A1 DE 2545812A1
- Authority
- DE
- Germany
- Prior art keywords
- electrical
- current
- electrical conductor
- temperature
- ferromagnetic material
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 16
- 239000004020 conductor Substances 0.000 claims description 81
- 239000003302 ferromagnetic material Substances 0.000 claims description 29
- 229910000859 α-Fe Inorganic materials 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 14
- 230000005291 magnetic effect Effects 0.000 claims description 9
- 230000035699 permeability Effects 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims 2
- 238000009413 insulation Methods 0.000 description 17
- 238000012806 monitoring device Methods 0.000 description 10
- 229910001035 Soft ferrite Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- -1 iron ions Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052596 spinel Inorganic materials 0.000 description 3
- 239000011029 spinel Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 230000005298 paramagnetic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- YPFNIPKMNMDDDB-UHFFFAOYSA-K 2-[2-[bis(carboxylatomethyl)amino]ethyl-(2-hydroxyethyl)amino]acetate;iron(3+) Chemical compound [Fe+3].OCCN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O YPFNIPKMNMDDDB-UHFFFAOYSA-K 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000010259 detection of temperature stimulus Effects 0.000 description 1
- 239000013070 direct material Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000005293 ferrimagnetic effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/141—Arrangements for the insulation of pipes or pipe systems in which the temperature of the medium is below that of the ambient temperature
-
- 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
- G01K7/36—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using magnetic elements, e.g. magnets, coils
- G01K7/38—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using magnetic elements, e.g. magnets, coils the variations of temperature influencing the magnetic permeability
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Hard Magnetic Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB44614/74A GB1526726A (en) | 1974-10-15 | 1974-10-15 | Method and apparatus for detecting temperature variation above or below a predetermined value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2545812A1 true DE2545812A1 (de) | 1976-04-29 |
Family
ID=10434083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752545812 Pending DE2545812A1 (de) | 1974-10-15 | 1975-10-13 | Verfahren und vorrichtung zum nachweisen von temperaturaenderungen |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5164980A (OSRAM) |
| CA (1) | CA1064141A (OSRAM) |
| DE (1) | DE2545812A1 (OSRAM) |
| FR (1) | FR2288303A1 (OSRAM) |
| GB (1) | GB1526726A (OSRAM) |
| NL (1) | NL7511992A (OSRAM) |
| NO (1) | NO753453L (OSRAM) |
| SE (1) | SE7511451L (OSRAM) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5096304A (en) * | 1989-08-17 | 1992-03-17 | National Research Development Corporation | Temperature history indicator |
| US5201583A (en) * | 1989-08-17 | 1993-04-13 | British Technology Group Limited | Temperature history indicator |
| DE4207493A1 (de) * | 1992-03-10 | 1993-11-18 | Telefunken Microelectron | Vorrichtung zur berührungslosen Überwachung der Temperatur eines Meßkörpers |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3060418A (en) * | 1959-10-09 | 1962-10-23 | Ibm | Core array temperature responsive apparatus |
| US3727053A (en) * | 1971-05-03 | 1973-04-10 | R Walser | Method and apparatus for detecting radiation by means of the pyromagnetic effect |
-
1974
- 1974-10-15 GB GB44614/74A patent/GB1526726A/en not_active Expired
-
1975
- 1975-08-29 CA CA234,626A patent/CA1064141A/en not_active Expired
- 1975-10-13 SE SE7511451A patent/SE7511451L/xx unknown
- 1975-10-13 DE DE19752545812 patent/DE2545812A1/de active Pending
- 1975-10-13 NL NL7511992A patent/NL7511992A/xx not_active Application Discontinuation
- 1975-10-13 FR FR7531254A patent/FR2288303A1/fr active Granted
- 1975-10-13 JP JP50122576A patent/JPS5164980A/ja active Pending
- 1975-10-13 NO NO753453A patent/NO753453L/no unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5096304A (en) * | 1989-08-17 | 1992-03-17 | National Research Development Corporation | Temperature history indicator |
| US5201583A (en) * | 1989-08-17 | 1993-04-13 | British Technology Group Limited | Temperature history indicator |
| DE4207493A1 (de) * | 1992-03-10 | 1993-11-18 | Telefunken Microelectron | Vorrichtung zur berührungslosen Überwachung der Temperatur eines Meßkörpers |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7511992A (nl) | 1976-04-21 |
| JPS5164980A (OSRAM) | 1976-06-04 |
| FR2288303B1 (OSRAM) | 1979-05-11 |
| GB1526726A (en) | 1978-09-27 |
| SE7511451L (sv) | 1976-04-20 |
| CA1064141A (en) | 1979-10-09 |
| NO753453L (OSRAM) | 1976-04-21 |
| FR2288303A1 (fr) | 1976-05-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHJ | Non-payment of the annual fee |