CH580279A5 - - Google Patents
Info
- Publication number
- CH580279A5 CH580279A5 CH1443871A CH1443871A CH580279A5 CH 580279 A5 CH580279 A5 CH 580279A5 CH 1443871 A CH1443871 A CH 1443871A CH 1443871 A CH1443871 A CH 1443871A CH 580279 A5 CH580279 A5 CH 580279A5
- Authority
- CH
- Switzerland
Links
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
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- 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
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- 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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (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)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1443871A CH580279A5 (it) | 1971-10-04 | 1971-10-04 | |
AT595972A AT322507B (de) | 1971-10-04 | 1972-07-12 | Indikator zum nachweis von flüssigen aliphatischen und aromatischen kohlenwasserstoffen sowie deren halogen- und schwefelderivaten |
DE19722234239 DE2234239A1 (de) | 1971-10-04 | 1972-07-12 | Verwendung eines zwei materialien unterschiedlicher elektrischer leitfaehigkeit enthaltenden materialstueckes |
JP7603172A JPS4845285A (it) | 1971-10-04 | 1972-07-31 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1443871A CH580279A5 (it) | 1971-10-04 | 1971-10-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH580279A5 true CH580279A5 (it) | 1976-09-30 |
Family
ID=4400830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1443871A CH580279A5 (it) | 1971-10-04 | 1971-10-04 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS4845285A (it) |
AT (1) | AT322507B (it) |
CH (1) | CH580279A5 (it) |
DE (1) | DE2234239A1 (it) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL168940C (nl) * | 1972-10-23 | 1982-05-17 | Perren Benno | Sonde. |
JPS51112586U (it) * | 1975-03-08 | 1976-09-11 | ||
JPS51112567U (it) * | 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 (it) * | 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 |
GB2230631B (en) * | 1989-04-04 | 1993-03-03 | Gore & Ass | A solvent responsive signal-carrying device |
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1971
- 1971-10-04 CH CH1443871A patent/CH580279A5/xx not_active IP Right Cessation
-
1972
- 1972-07-12 DE DE19722234239 patent/DE2234239A1/de active Pending
- 1972-07-12 AT AT595972A patent/AT322507B/de not_active IP Right Cessation
- 1972-07-31 JP JP7603172A patent/JPS4845285A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2234239A1 (de) | 1973-04-12 |
AT322507B (de) | 1975-05-26 |
JPS4845285A (it) | 1973-06-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |