GB2161936B - Improvements in or relating to alternating current potential drop methods for crack detection and measurement - Google Patents
Improvements in or relating to alternating current potential drop methods for crack detection and measurementInfo
- Publication number
- GB2161936B GB2161936B GB08515164A GB8515164A GB2161936B GB 2161936 B GB2161936 B GB 2161936B GB 08515164 A GB08515164 A GB 08515164A GB 8515164 A GB8515164 A GB 8515164A GB 2161936 B GB2161936 B GB 2161936B
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- measurement
- alternating current
- current potential
- potential drop
- 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
Classifications
-
- 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
- G01N27/20—Investigating the presence of flaws
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB848415747A GB8415747D0 (en) | 1984-06-20 | 1984-06-20 | Alternating current potential drops |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8515164D0 GB8515164D0 (en) | 1985-07-17 |
GB2161936A GB2161936A (en) | 1986-01-22 |
GB2161936B true GB2161936B (en) | 1989-01-05 |
Family
ID=10562719
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB848415747A Pending GB8415747D0 (en) | 1984-06-20 | 1984-06-20 | Alternating current potential drops |
GB08515164A Expired GB2161936B (en) | 1984-06-20 | 1985-06-14 | Improvements in or relating to alternating current potential drop methods for crack detection and measurement |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB848415747A Pending GB8415747D0 (en) | 1984-06-20 | 1984-06-20 | Alternating current potential drops |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB8415747D0 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH670504A5 (en) * | 1986-11-25 | 1989-06-15 | Battelle Memorial Institute | |
DE3828552C2 (en) * | 1988-08-23 | 1994-10-13 | Karl Deutsch Pruef Und Mesgera | Method and device for crack depth measurement |
US4871962A (en) * | 1988-10-28 | 1989-10-03 | Advanced Micro Devices, Inc. | Method for measuring the size of vias |
GB2289338A (en) * | 1994-04-12 | 1995-11-15 | Unvala Ltd | Alternating current potential drop measurement |
RU2115934C1 (en) * | 1996-12-20 | 1998-07-20 | Уханов Сергей Иванович | Process testing purity of material of conductive article ( versions ) |
GB0019434D0 (en) * | 2000-08-09 | 2000-09-27 | Rolls Royce Plc | A device and method for fatigue testing of materials |
US7519487B2 (en) | 2006-03-06 | 2009-04-14 | Technion Research And Development Foundation Ltd. | System and method for depth determination of cracks in conducting structures |
CN101832970B (en) * | 2010-05-07 | 2012-08-29 | 江苏大学 | Device and method for reckoning fatigue crack propagation rate of flat alloy by AC potentiometry |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB804323A (en) * | 1956-01-23 | 1958-11-12 | British Thomson Houston Co Ltd | Improvements relating to the detection of surface cracks in electrically conducting materials |
GB1094303A (en) * | 1964-03-24 | 1967-12-06 | Hoyt Metal Company Of Great Br | Non-destructive metal testing |
GB2012965B (en) * | 1977-11-11 | 1982-06-23 | Dover & Partners Ltd | Probes and apparatus for and methods of measuring crack depths |
FR2471601A1 (en) * | 1979-12-14 | 1981-06-19 | Commissariat Energie Atomique | METHOD AND DEVICE FOR NON-DESTRUCTIVE CONTROL OF STITCHES |
US4345205A (en) * | 1980-05-05 | 1982-08-17 | Monsanto Company | Finish monitor |
DE3213365A1 (en) * | 1982-04-10 | 1983-10-20 | Richard Hirschmann Radiotechnisches Werk, 7300 Esslingen | METHOD AND DEVICE FOR THE OPTICAL TRANSMISSION OF ELECTRICAL SIGNALS WITH POSITIVE AND NEGATIVE VOLTAGE VALUES |
NO150136C (en) * | 1982-04-19 | 1985-02-08 | Sentralinst For Ind Forskning | PROCEDURE AND DEVICE FOR MONITORING OF LARGE METAL CONSTRUCTIONS |
-
1984
- 1984-06-20 GB GB848415747A patent/GB8415747D0/en active Pending
-
1985
- 1985-06-14 GB GB08515164A patent/GB2161936B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB8515164D0 (en) | 1985-07-17 |
GB2161936A (en) | 1986-01-22 |
GB8415747D0 (en) | 1984-07-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |