GB901911A - Improvements in or relating to methods of detecting the presence of inhomogeneities in magnetic fields - Google Patents
Improvements in or relating to methods of detecting the presence of inhomogeneities in magnetic fieldsInfo
- Publication number
- GB901911A GB901911A GB693259A GB693259A GB901911A GB 901911 A GB901911 A GB 901911A GB 693259 A GB693259 A GB 693259A GB 693259 A GB693259 A GB 693259A GB 901911 A GB901911 A GB 901911A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screen
- bore
- inhomogeneities
- feb
- magnet
- 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
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/0213—Measuring direction or magnitude of magnetic fields or magnetic flux using deviation of charged particles by the magnetic field
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
Abstract
901,911. Magnetic tests. GENERAL ELECTRIC CO. Ltd. Feb. 29, 1960 [Feb. 27, 1959], No. 6932/59. Class 37. [Also in Group XL (a)] A cathode-ray tube 1 having a substantially flat screen 5 is fitted by non-magnetic rings 7, to slide within a bore in a magnet 3. The tube is short compared with the length of the bore and the spot on the screen is focused by the field, changes of spot shape, dimension or position during movement along the bore indicating an inhomogeneity in the region of the screen. Inhomogeneities may be removed by the application of a local field. In, for example, a long magnet for focusing a long electron beam, which comprises short tubular portions arranged end to end with their axes aligned, the magnetization may be adjusted by rotating portions with respect to one another. The scope of the claim is such as to include movement of a screen relative to a fixed beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB693259A GB901911A (en) | 1959-02-27 | 1959-02-27 | Improvements in or relating to methods of detecting the presence of inhomogeneities in magnetic fields |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB693259A GB901911A (en) | 1959-02-27 | 1959-02-27 | Improvements in or relating to methods of detecting the presence of inhomogeneities in magnetic fields |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB901911A true GB901911A (en) | 1962-07-25 |
Family
ID=9823486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB693259A Expired GB901911A (en) | 1959-02-27 | 1959-02-27 | Improvements in or relating to methods of detecting the presence of inhomogeneities in magnetic fields |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB901911A (en) |
-
1959
- 1959-02-27 GB GB693259A patent/GB901911A/en not_active Expired
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