GB730302A - Improvements relating to the detection of flaws in non-ferrous metal articles - Google Patents
Improvements relating to the detection of flaws in non-ferrous metal articlesInfo
- Publication number
- GB730302A GB730302A GB22758/52A GB2275852A GB730302A GB 730302 A GB730302 A GB 730302A GB 22758/52 A GB22758/52 A GB 22758/52A GB 2275852 A GB2275852 A GB 2275852A GB 730302 A GB730302 A GB 730302A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coils
- magnetic
- core
- flaws
- detection
- 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
- G01N27/72—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
- G01N27/9006—Details, e.g. in the structure or functioning of sensors
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)
Abstract
730,302. Electric tests. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Aug. 27, 1953 [Sept. 10, 1952], No. 22758/52. Class 37. Apparatus for testing non- ferrous metallic tubes for flaws comprises two similar coils, located side-by-side, surrounding an iron core, the tube being placed between the coils and the core, and the impedances of the coils being compared in an A.C. bridge circuit. As shown (Fig. 1) the coils 6, 7 are wound on an insulating former 4, the core 1 comprising iron wires in a non-conducting tubular sheath 2, and the magnetic circuit includes radially slotted, magnetic washers 8 and magnetic, longitudinally slotted shielding ring 11. Initial bridge balance is obtained by a magnetic sleeve 15 slidable over the two windings 6, 7, and a potentiometer R3 (Fig. 2) in the bridge circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB22758/52A GB730302A (en) | 1952-09-10 | 1952-09-10 | Improvements relating to the detection of flaws in non-ferrous metal articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB22758/52A GB730302A (en) | 1952-09-10 | 1952-09-10 | Improvements relating to the detection of flaws in non-ferrous metal articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB730302A true GB730302A (en) | 1955-05-18 |
Family
ID=10184603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22758/52A Expired GB730302A (en) | 1952-09-10 | 1952-09-10 | Improvements relating to the detection of flaws in non-ferrous metal articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB730302A (en) |
-
1952
- 1952-09-10 GB GB22758/52A patent/GB730302A/en not_active Expired
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