GB2029973B - Current measurement - Google Patents
Current measurementInfo
- Publication number
- GB2029973B GB2029973B GB7927118A GB7927118A GB2029973B GB 2029973 B GB2029973 B GB 2029973B GB 7927118 A GB7927118 A GB 7927118A GB 7927118 A GB7927118 A GB 7927118A GB 2029973 B GB2029973 B GB 2029973B
- Authority
- GB
- United Kingdom
- Prior art keywords
- current measurement
- measurement
- current
- 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
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
- G01R15/183—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core
- G01R15/185—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core with compensation or feedback windings or interacting coils, e.g. 0-flux sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
- G01R17/02—Arrangements in which the value to be measured is automatically compared with a reference value
- G01R17/04—Arrangements in which the value to be measured is automatically compared with a reference value in which the reference value is continuously or periodically swept over the range of values to be measured
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/18—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
- G01R19/20—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers using transductors, i.e. a magnetic core transducer the saturation of which is cyclically reversed by an AC source on the secondary side
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA784449A ZA784449B (en) | 1978-08-04 | 1978-08-04 | Current measurement |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2029973A GB2029973A (en) | 1980-03-26 |
GB2029973B true GB2029973B (en) | 1982-11-03 |
Family
ID=25573239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7927118A Expired GB2029973B (en) | 1978-08-04 | 1979-08-03 | Current measurement |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2029973B (en) |
ZA (1) | ZA784449B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0099979B1 (en) * | 1982-07-26 | 1987-04-08 | LGZ LANDIS & GYR ZUG AG | Magnetic field sensor and the use thereof |
CH658546A5 (en) * | 1982-08-30 | 1986-11-14 | Landis & Gyr Ag | HALL ELEMENT WITH FEED. |
CH659896A5 (en) * | 1982-11-22 | 1987-02-27 | Landis & Gyr Ag | MAGNETIC SENSOR. |
GB2225436A (en) * | 1988-11-25 | 1990-05-30 | Gen Electric Co Plc | Alternating current sensors |
DE19845778B4 (en) * | 1998-09-22 | 2004-04-29 | Siemens Ag | Process for mapping direct currents and direct current converter for carrying out the process |
-
1978
- 1978-08-04 ZA ZA784449A patent/ZA784449B/en unknown
-
1979
- 1979-08-03 GB GB7927118A patent/GB2029973B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ZA784449B (en) | 1980-03-26 |
GB2029973A (en) | 1980-03-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940803 |