DE2234239A1 - Verwendung eines zwei materialien unterschiedlicher elektrischer leitfaehigkeit enthaltenden materialstueckes - Google Patents
Verwendung eines zwei materialien unterschiedlicher elektrischer leitfaehigkeit enthaltenden materialstueckesInfo
- Publication number
- DE2234239A1 DE2234239A1 DE19722234239 DE2234239A DE2234239A1 DE 2234239 A1 DE2234239 A1 DE 2234239A1 DE 19722234239 DE19722234239 DE 19722234239 DE 2234239 A DE2234239 A DE 2234239A DE 2234239 A1 DE2234239 A1 DE 2234239A1
- Authority
- DE
- Germany
- Prior art keywords
- piece
- use according
- resistance
- current
- changes
- 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
- 239000003921 oil Substances 0.000 title claims abstract description 17
- 239000004576 sand Substances 0.000 title abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 74
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 230000008961 swelling Effects 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims abstract description 3
- 239000004033 plastic Substances 0.000 claims description 16
- 229920003023 plastic Polymers 0.000 claims description 16
- 229920002367 Polyisobutene Polymers 0.000 claims description 12
- 229910002804 graphite Inorganic materials 0.000 claims description 10
- 239000010439 graphite Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000000295 fuel oil Substances 0.000 claims description 5
- 229930195733 hydrocarbon Natural products 0.000 claims description 4
- 150000002430 hydrocarbons Chemical class 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 3
- KBTSYYDIJLKASV-UHFFFAOYSA-N 5,6-ditert-butyl-7-thiabicyclo[4.1.0]hepta-2,4-dien-1-ol Chemical compound C(C)(C)(C)C=1C2(C(C=CC=1)(O)S2)C(C)(C)C KBTSYYDIJLKASV-UHFFFAOYSA-N 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 230000032683 aging Effects 0.000 claims description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 239000004071 soot Substances 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 239000000446 fuel Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract 2
- 239000000523 sample Substances 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 229920002460 Oppanol® B 50 Polymers 0.000 description 5
- 229920002440 Oppanol® B 200 Polymers 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- 229920002398 Oppanol® B Polymers 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
- G01M3/045—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
- G01M3/165—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means by means of cables or similar elongated devices, e.g. tapes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1443871A CH580279A5 (enrdf_load_stackoverflow) | 1971-10-04 | 1971-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2234239A1 true DE2234239A1 (de) | 1973-04-12 |
Family
ID=4400830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722234239 Pending DE2234239A1 (de) | 1971-10-04 | 1972-07-12 | Verwendung eines zwei materialien unterschiedlicher elektrischer leitfaehigkeit enthaltenden materialstueckes |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS4845285A (enrdf_load_stackoverflow) |
| AT (1) | AT322507B (enrdf_load_stackoverflow) |
| CH (1) | CH580279A5 (enrdf_load_stackoverflow) |
| DE (1) | DE2234239A1 (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0391580A3 (en) * | 1989-04-04 | 1991-10-02 | W.L. GORE & ASSOCIATES (UK) LTD | A solvent responsive signal-carrying device |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT995911B (it) * | 1972-10-23 | 1975-11-20 | Perren B | Scandaglio per l accertamento di liquidi organici |
| JPS51112586U (enrdf_load_stackoverflow) * | 1975-03-08 | 1976-09-11 | ||
| JPS51112567U (enrdf_load_stackoverflow) * | 1975-03-08 | 1976-09-11 | ||
| JPS5947256B2 (ja) * | 1977-05-25 | 1984-11-17 | 株式会社潤工社 | 流体検知素子 |
| US4158610A (en) * | 1978-03-28 | 1979-06-19 | Bethlehem Steel Corporation | Method and apparatus for determining and controlling amount of carbon deposited on a surface by a gas |
| JPS55181540U (enrdf_load_stackoverflow) * | 1980-06-18 | 1980-12-26 | ||
| JPS56119836A (en) * | 1980-06-19 | 1981-09-19 | Shinkosumosu Denki Kk | Measuring method for minute quantity of oil content in water |
-
1971
- 1971-10-04 CH CH1443871A patent/CH580279A5/xx not_active IP Right Cessation
-
1972
- 1972-07-12 AT AT595972A patent/AT322507B/de not_active IP Right Cessation
- 1972-07-12 DE DE19722234239 patent/DE2234239A1/de active Pending
- 1972-07-31 JP JP7603172A patent/JPS4845285A/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0391580A3 (en) * | 1989-04-04 | 1991-10-02 | W.L. GORE & ASSOCIATES (UK) LTD | A solvent responsive signal-carrying device |
Also Published As
| Publication number | Publication date |
|---|---|
| AT322507B (de) | 1975-05-26 |
| CH580279A5 (enrdf_load_stackoverflow) | 1976-09-30 |
| JPS4845285A (enrdf_load_stackoverflow) | 1973-06-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHA | Expiration of time for request for examination |