GB886455A - Improvements in or relating to ammeters - Google Patents
Improvements in or relating to ammetersInfo
- Publication number
- GB886455A GB886455A GB14238/60A GB1423860A GB886455A GB 886455 A GB886455 A GB 886455A GB 14238/60 A GB14238/60 A GB 14238/60A GB 1423860 A GB1423860 A GB 1423860A GB 886455 A GB886455 A GB 886455A
- Authority
- GB
- United Kingdom
- Prior art keywords
- current
- bridge
- april
- arms
- conductor
- 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
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
- G01R15/205—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices using magneto-resistance devices, e.g. field plates
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
886,455. Electric measuring bridges. LANDIS & GYR A.G. April 22, 1960 [April 25 1959], No. 14238/60. Class 37. A current-measuring bridge comprises two arms each of which includes a resistance element (7 or 8), the resistance of which varies with magnetic field strength, disposed in a magnetic field (B 1 +B0 or B 1 -B0) the fields B0 being produced by permanent magnets 5, 6 and B 1 by electromagnets 3, 4 energized by the current through conductor 2 which is to be measured. The other two arms of the bridge consist of high resistors 9, 10 and the output is taken from 14, 15 to a quotient meter 17 which will indicate the current through conductor 2. The bridge supply is derived from conductors 1, 2 and connected across terminals 11, 12. In another embodiment (Fig. 3, not shown) a potentiometer replaces resistors 9, 10 and a potentiometer is also connected between elements 7, 8.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH886455X | 1959-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB886455A true GB886455A (en) | 1962-01-10 |
Family
ID=4545309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14238/60A Expired GB886455A (en) | 1959-04-25 | 1960-04-22 | Improvements in or relating to ammeters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB886455A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4504787A (en) * | 1982-04-05 | 1985-03-12 | Honeywell Inc. | Electronic watthour meter |
| US4677380A (en) * | 1982-06-16 | 1987-06-30 | Lgz Landis | Magnetic field sensor comprising two component layer transistor of opposite polarities |
-
1960
- 1960-04-22 GB GB14238/60A patent/GB886455A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4504787A (en) * | 1982-04-05 | 1985-03-12 | Honeywell Inc. | Electronic watthour meter |
| US4677380A (en) * | 1982-06-16 | 1987-06-30 | Lgz Landis | Magnetic field sensor comprising two component layer transistor of opposite polarities |
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