JPH0255727B2 - - Google Patents
Info
- Publication number
- JPH0255727B2 JPH0255727B2 JP8490580A JP8490580A JPH0255727B2 JP H0255727 B2 JPH0255727 B2 JP H0255727B2 JP 8490580 A JP8490580 A JP 8490580A JP 8490580 A JP8490580 A JP 8490580A JP H0255727 B2 JPH0255727 B2 JP H0255727B2
- Authority
- JP
- Japan
- Prior art keywords
- cable
- magnetic material
- abnormal temperature
- time difference
- pulse signal
- 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
- 239000000696 magnetic material Substances 0.000 claims description 40
- 230000002159 abnormal effect Effects 0.000 claims description 32
- 239000004020 conductor Substances 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 20
- 230000008859 change Effects 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000035699 permeability Effects 0.000 description 6
- 239000000843 powder Substances 0.000 description 5
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- 230000005856 abnormality Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Insulated Conductors (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8490580A JPS5710431A (en) | 1980-06-23 | 1980-06-23 | Detecting device of position at abnormal temperature |
| CA000380343A CA1171933A (en) | 1980-06-23 | 1981-06-22 | Apparatus for detecting the local temperature variations of an object and the sites of the temperature variations |
| DE8181104858T DE3175500D1 (en) | 1980-06-23 | 1981-06-23 | Apparatus for detecting the local temperature variations of an object and the sites of the temperature variations |
| EP19810104858 EP0044431B1 (en) | 1980-06-23 | 1981-06-23 | Apparatus for detecting the local temperature variations of an object and the sites of the temperature variations |
| US06/568,512 US4533259A (en) | 1980-06-23 | 1984-01-09 | Apparatus for detecting the local temperature variations of an object and the sites of the temperature variations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8490580A JPS5710431A (en) | 1980-06-23 | 1980-06-23 | Detecting device of position at abnormal temperature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5710431A JPS5710431A (en) | 1982-01-20 |
| JPH0255727B2 true JPH0255727B2 (enExample) | 1990-11-28 |
Family
ID=13843744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8490580A Granted JPS5710431A (en) | 1980-06-23 | 1980-06-23 | Detecting device of position at abnormal temperature |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5710431A (enExample) |
-
1980
- 1980-06-23 JP JP8490580A patent/JPS5710431A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5710431A (en) | 1982-01-20 |
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