GB1272409A - Eddy-currents transducer for checking surfaces of metal articles - Google Patents
Eddy-currents transducer for checking surfaces of metal articlesInfo
- Publication number
- GB1272409A GB1272409A GB3764569A GB3764569A GB1272409A GB 1272409 A GB1272409 A GB 1272409A GB 3764569 A GB3764569 A GB 3764569A GB 3764569 A GB3764569 A GB 3764569A GB 1272409 A GB1272409 A GB 1272409A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- transducer
- plugs
- copper
- flux
- 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
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
- G01B7/10—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
- G01B7/105—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance for measuring thickness of coating
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
1,272,409. Inductors. KUIBYSHEVSKY ORDENA TRUDOVOGO KRASNOGO ZNAMENI AVIATSIONNY INSTITUT IM AKADEMIKA, S. P. KOROLEVA. 26 July, 1969, No. 37645/69. Heading H1T. [Also in Division G1] A transducer comprises an inductance coil 2 wound on a ferrite core 1 having gaps plugged with copper or silver plugs 3, 4 which cause magnetic flux leakage from the core which flux is applied to unspecified metal articles to, measure the thickness of surface coatings thereon or the surface profile thereof, by producing eddy currents in the articles. The plugs protrude into a space confined by the core whereby the stray flux Ns is directed externally of the core. A screening layer (5), Figs. 2-4, not shown, of copper is applied over the core up to the boundary lines 6, 7 so as to prevent flux leakage except at the plugs. In an alternative embodiment the transducer may have one plug and no screening layer. It is stated that the transducer may form part of a measuring bridge or a resonance measuring circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3764569A GB1272409A (en) | 1969-07-26 | 1969-07-26 | Eddy-currents transducer for checking surfaces of metal articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3764569A GB1272409A (en) | 1969-07-26 | 1969-07-26 | Eddy-currents transducer for checking surfaces of metal articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1272409A true GB1272409A (en) | 1972-04-26 |
Family
ID=10397952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3764569A Expired GB1272409A (en) | 1969-07-26 | 1969-07-26 | Eddy-currents transducer for checking surfaces of metal articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1272409A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4675605A (en) * | 1985-02-05 | 1987-06-23 | Sri International | Eddy current probe and method for flaw detection in metals |
| US8486703B2 (en) | 2010-09-30 | 2013-07-16 | Ut-Battelle, Llc | Surface sampling concentration and reaction probe |
| US8519330B2 (en) | 2010-10-01 | 2013-08-27 | Ut-Battelle, Llc | Systems and methods for laser assisted sample transfer to solution for chemical analysis |
| US9063047B2 (en) | 2010-05-07 | 2015-06-23 | Ut-Battelle, Llc | System and method for extracting a sample from a surface |
| CN114111556A (en) * | 2021-11-30 | 2022-03-01 | 安徽见行科技有限公司 | Ultrathin probe for extreme gap detection environment and eddy current sensor |
-
1969
- 1969-07-26 GB GB3764569A patent/GB1272409A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4675605A (en) * | 1985-02-05 | 1987-06-23 | Sri International | Eddy current probe and method for flaw detection in metals |
| US9063047B2 (en) | 2010-05-07 | 2015-06-23 | Ut-Battelle, Llc | System and method for extracting a sample from a surface |
| US8486703B2 (en) | 2010-09-30 | 2013-07-16 | Ut-Battelle, Llc | Surface sampling concentration and reaction probe |
| US9395278B2 (en) | 2010-09-30 | 2016-07-19 | Ut-Battelle, Llc | Surface sampling concentration and reaction probe with controller to adjust sampling position |
| US8519330B2 (en) | 2010-10-01 | 2013-08-27 | Ut-Battelle, Llc | Systems and methods for laser assisted sample transfer to solution for chemical analysis |
| US9146180B2 (en) | 2010-10-01 | 2015-09-29 | Ut-Battelle, Llc | Systems and methods for laser assisted sample transfer to solution for chemical analysis |
| CN114111556A (en) * | 2021-11-30 | 2022-03-01 | 安徽见行科技有限公司 | Ultrathin probe for extreme gap detection environment and eddy current sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |