GB702021A - Improvements in or relating to magnetic testing devices - Google Patents
Improvements in or relating to magnetic testing devicesInfo
- Publication number
- GB702021A GB702021A GB36452A GB36452A GB702021A GB 702021 A GB702021 A GB 702021A GB 36452 A GB36452 A GB 36452A GB 36452 A GB36452 A GB 36452A GB 702021 A GB702021 A GB 702021A
- Authority
- GB
- United Kingdom
- Prior art keywords
- yoke
- magnetic
- magnetometer
- pointer
- poles
- 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
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/1223—Measuring permeability, i.e. permeameters
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
Abstract
702,021. Magnetic tests. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 31, 1952 [Jan. 4, 1952], No. 364/52. Class 37 A magnetic testing device comprises a U-shaped magnetic yoke having a hole wherein is located a rotatable permanent magnet for varying the flux through the yoke, and a magnetometer movement located between the poles of the yoke so that when the yoke is placed on the surface of a magnetic material the magnetometer is deflected in accordance with the flux through the test material. The angular position of the magnet 1 (Fig. 1) in the hole 4 of the yoke 5 is adjustable by a handle 3 and is indicated by a pointer 6 moving over a scale 7. The magnetometer 8 comprises a flat permanent magnet 16 (Fig. 2) of Silmanal alloy suspended from a shaft 13 carrying a pointer 11, with a control spring 19, and is mounted on a non-magnetic base plate 9 which slides into grooves 10 in the poles of the yoke 5. In operation for, e.g. measuring the thickness of a magnetic sheet, the device is placed on the sheet and the indications of the pointers 6, 11 noted. One pointer reading is preferably maintained constant, and the variations in the other indicate the variations of thickness. of the test sheets. Specifications 406,086 and 535,168, [both in Group II], are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB36452A GB702021A (en) | 1952-01-04 | 1952-01-04 | Improvements in or relating to magnetic testing devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB36452A GB702021A (en) | 1952-01-04 | 1952-01-04 | Improvements in or relating to magnetic testing devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB702021A true GB702021A (en) | 1954-01-06 |
Family
ID=9703095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36452A Expired GB702021A (en) | 1952-01-04 | 1952-01-04 | Improvements in or relating to magnetic testing devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB702021A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107515525A (en) * | 2017-09-12 | 2017-12-26 | 飞亚达（集团）股份有限公司 | A kind of superpower antimagnetic performance testing device and its plus magnetic structure |
-
1952
- 1952-01-04 GB GB36452A patent/GB702021A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107515525A (en) * | 2017-09-12 | 2017-12-26 | 飞亚达（集团）股份有限公司 | A kind of superpower antimagnetic performance testing device and its plus magnetic structure |
| CN107515525B (en) * | 2017-09-12 | 2023-04-25 | 飞亚达精密科技股份有限公司 | Antimagnetic performance testing device and magnetizing structure thereof |
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