GB2041535A - A measuring and/or testing device - Google Patents
A measuring and/or testing device Download PDFInfo
- Publication number
- GB2041535A GB2041535A GB7944375A GB7944375A GB2041535A GB 2041535 A GB2041535 A GB 2041535A GB 7944375 A GB7944375 A GB 7944375A GB 7944375 A GB7944375 A GB 7944375A GB 2041535 A GB2041535 A GB 2041535A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- fact
- transmitter
- compensation
- suppressed
- 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.)
- Withdrawn
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
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9046—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents by analysing electrical signals
- G01N27/9053—Compensating for probe to workpiece spacing
-
- 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
- G01N27/023—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance where the material is placed in the field of a coil
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 Magnetic Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7813344A SE7813344L (sv) | 1978-12-28 | 1978-12-28 | Met- och/eller kompensationsanordning |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2041535A true GB2041535A (en) | 1980-09-10 |
Family
ID=20336705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7944375A Withdrawn GB2041535A (en) | 1978-12-28 | 1979-12-24 | A measuring and/or testing device |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2952129A1 (de) |
GB (1) | GB2041535A (de) |
SE (1) | SE7813344L (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0152066A2 (de) * | 1984-02-10 | 1985-08-21 | Törnbloms Kvalitetskontroll Ab | Verfahren und Durchführungsanordnung zum Prüfen und/oder Messen elektrisch leitender Prüfgegenstände |
GB2165650A (en) * | 1984-04-09 | 1986-04-16 | Dennis Amerena Parker | Method and apparatus for the quantative and qualitative measurement of small metal particles |
GB2192064A (en) * | 1986-06-17 | 1987-12-31 | Michael John Nicholas | Electromagnetic non-destructive sensing/inspection device incorporating a balancing network |
US4851774A (en) * | 1986-07-15 | 1989-07-25 | Tornbloms Kvalitetskontroll Ab | Suppression of the effect of harmless surface defects in eddy current testing by sensitivity characteristic compensation |
US4945307A (en) * | 1982-11-24 | 1990-07-31 | Tornbloms Kvalitetskontroll Ab | Electronic device for detecting irregularities in a surface of a solid object |
FR2712975A1 (fr) * | 1993-11-23 | 1995-06-02 | Framatome Sa | Procédé de contrôle non destructif d'un tube mince par courants de Foucault et capteur à courants de Foucault. |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4318617A (en) * | 1979-12-14 | 1982-03-09 | Keuffel & Esser Company | DC Shift error correction for electro-optical measuring system |
DE3129321C2 (de) * | 1981-07-24 | 1986-11-06 | Rižskij politechničeskij institut, Riga | Verfahren und Einrichtung zur zerstörungsfreien Kontrolle von Punktschweißverbindungen |
DE3517114A1 (de) * | 1985-05-11 | 1986-11-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München | Wirbelstromverfahren zur untersuchung der spannungsrisskorrosion in austenitischen bauteilen sowie vorrichtung zur durchfuehrung des verfahrens |
DE4322987C2 (de) * | 1993-07-09 | 1997-04-10 | Erwin Halstrup | Spule zur Erzeugung eines magnetischen Wechselfeldes |
-
1978
- 1978-12-28 SE SE7813344A patent/SE7813344L/ unknown
-
1979
- 1979-12-22 DE DE19792952129 patent/DE2952129A1/de not_active Withdrawn
- 1979-12-24 GB GB7944375A patent/GB2041535A/en not_active Withdrawn
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4945307A (en) * | 1982-11-24 | 1990-07-31 | Tornbloms Kvalitetskontroll Ab | Electronic device for detecting irregularities in a surface of a solid object |
EP0152066A2 (de) * | 1984-02-10 | 1985-08-21 | Törnbloms Kvalitetskontroll Ab | Verfahren und Durchführungsanordnung zum Prüfen und/oder Messen elektrisch leitender Prüfgegenstände |
JPS60187859A (ja) * | 1984-02-10 | 1985-09-25 | トールンブロムス クバリテツトスコントロールアクチーボラグ | 導電供試体の試験及び/もしくは測定方法及び装置 |
US4661777A (en) * | 1984-02-10 | 1987-04-28 | Tornbloms Kvalitetskontroll Ab | Plural frequency eddy current method and apparatus with lift-off compensation for detecting faults in electrically conductive objects |
EP0152066A3 (en) * | 1984-02-10 | 1988-08-31 | Tornbloms Kvalitetskontroll Ab | Method and system for testing and/or measuring electrically conductive test objects |
GB2165650A (en) * | 1984-04-09 | 1986-04-16 | Dennis Amerena Parker | Method and apparatus for the quantative and qualitative measurement of small metal particles |
GB2192064A (en) * | 1986-06-17 | 1987-12-31 | Michael John Nicholas | Electromagnetic non-destructive sensing/inspection device incorporating a balancing network |
GB2192064B (en) * | 1986-06-17 | 1990-10-31 | Michael John Nicholas | Balanced bridge sensing device |
US4851774A (en) * | 1986-07-15 | 1989-07-25 | Tornbloms Kvalitetskontroll Ab | Suppression of the effect of harmless surface defects in eddy current testing by sensitivity characteristic compensation |
FR2712975A1 (fr) * | 1993-11-23 | 1995-06-02 | Framatome Sa | Procédé de contrôle non destructif d'un tube mince par courants de Foucault et capteur à courants de Foucault. |
Also Published As
Publication number | Publication date |
---|---|
SE7813344L (sv) | 1980-06-29 |
DE2952129A1 (de) | 1980-07-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |