GB404498A - Improvements in and relating to apparatus for measuring alternating electric current - Google Patents
Improvements in and relating to apparatus for measuring alternating electric currentInfo
- Publication number
- GB404498A GB404498A GB8154/33A GB815433A GB404498A GB 404498 A GB404498 A GB 404498A GB 8154/33 A GB8154/33 A GB 8154/33A GB 815433 A GB815433 A GB 815433A GB 404498 A GB404498 A GB 404498A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rectifiers
- current
- march
- instrument
- relating
- 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
- 238000005259 measurement Methods 0.000 abstract 1
Classifications
-
- 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
- G01R19/22—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of AC into DC
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
404,498. Compensating current meters for temperature errors. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) March 17, 1933, No. 8154. Convention date, March 18, 1932. [Class 37.] In circuits employing rectifiers 10-13, more particularly of the dryplate type, so as to utilize D.C. instruments for measurement of current and voltage in A.C. systems, a further rectifier 15 with the same temperature characteristic is connected in shunt with the instrument 14. The effect of this is to tend to bye-pass to the instrument more current on rise of resistance with temperature and so compensate for a similar rise in the main rectifiers 10-13. In the example shown, as arranged for measuring voltage, series and shunt resistances 16, 17, 18 are also employed and the compensating rectifier 15 is constructionally embodied with the other rectifiers 10-13. Specification 371,443 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE404498X | 1932-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB404498A true GB404498A (en) | 1934-01-18 |
Family
ID=6421795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8154/33A Expired GB404498A (en) | 1932-03-18 | 1933-03-17 | Improvements in and relating to apparatus for measuring alternating electric current |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB404498A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2452551A (en) * | 1945-04-27 | 1948-11-02 | Harold B Conant | Rectifier type measuring instrument |
| US2571458A (en) * | 1948-01-06 | 1951-10-16 | Rca Corp | Temperature compensated diode measuring circuits |
| US3196682A (en) * | 1963-05-13 | 1965-07-27 | Bacharach Ind Instr Company | Humidity sensing circuit |
-
1933
- 1933-03-17 GB GB8154/33A patent/GB404498A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2452551A (en) * | 1945-04-27 | 1948-11-02 | Harold B Conant | Rectifier type measuring instrument |
| US2571458A (en) * | 1948-01-06 | 1951-10-16 | Rca Corp | Temperature compensated diode measuring circuits |
| US3196682A (en) * | 1963-05-13 | 1965-07-27 | Bacharach Ind Instr Company | Humidity sensing circuit |
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