GB558933A - Improvements in impulse phase measuring systems - Google Patents
Improvements in impulse phase measuring systemsInfo
- Publication number
- GB558933A GB558933A GB15292/42A GB1529242A GB558933A GB 558933 A GB558933 A GB 558933A GB 15292/42 A GB15292/42 A GB 15292/42A GB 1529242 A GB1529242 A GB 1529242A GB 558933 A GB558933 A GB 558933A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grids
- reference voltage
- cathodes
- resistors
- battery
- 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
- 238000010079 rubber tapping Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
558,933. Phase-difference measurements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 30, 1942, No. 15292. Convention date, Oct. 31, 1941. [Class 37] An impulse phase measuring system employs negative transconductance valves for measuring the phase of an impulse voltage in relation to a reference voltage of the same frequency. A pair of pentodes T1, T2 have their suppressor grids 7, 17 connected in parallel, the anodes 9, 19 being also connected in parallel. The screen grids 5, 15 are connected through a pair of serially connected resistors 21, 23 across which is connected a voltmeter 25. The junction 27 of the resistors 21, 23 is connected to the cathodes 1, 11 through a battery 29 so that the cathode to screen grid circuits are connected in push-pull, the screen grids 5, 15 being positively biased with respect to the cathodes 1, 11. The battery 29 is also connected to the anodes 9, 19 through a resistor 31 and a condenser 33 may be connected between the anodes and cathodes. The reference voltage E1 is applied to the grids 3, 13 through a transformer 35 and resistors 41, 43, a battery 37 being connected to a central tapping on the secondary winding to maintain the grids 3, 13 negative with respect to their cathodes. The reference voltage E1 is thus applied to the grids 3, 13 in push-pull. The impulse voltage E is applied to the suppressor grids 7, 17 by an input circuit 45, a battery 47 applying a negative bias to the suppressor grids 7, 17 through a resistor 49. The voltmeter 25 indicates directly the phase relation between the impulse voltage E and the reference voltage E1. The reference voltage E1 may be sinusoidal or may have flattened peaks, in which latter case the resistors 41, 43 may be omitted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US558933XA | 1941-10-31 | 1941-10-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB558933A true GB558933A (en) | 1944-01-27 |
Family
ID=22000849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15292/42A Expired GB558933A (en) | 1941-10-31 | 1942-10-30 | Improvements in impulse phase measuring systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB558933A (en) |
-
1942
- 1942-10-30 GB GB15292/42A patent/GB558933A/en not_active Expired
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