GB524095A - Improvements in or relating to amplitude and phase adjusting networks for alternating current - Google Patents
Improvements in or relating to amplitude and phase adjusting networks for alternating currentInfo
- Publication number
- GB524095A GB524095A GB217639A GB217639A GB524095A GB 524095 A GB524095 A GB 524095A GB 217639 A GB217639 A GB 217639A GB 217639 A GB217639 A GB 217639A GB 524095 A GB524095 A GB 524095A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amplitude
- bridge
- phase
- resistance
- 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
- 230000002452 interceptive effect Effects 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Amplifiers (AREA)
Abstract
524,095. Phase changing. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., LAY, A. W., and TOOLEY, M. D. Jan. 21, 1939, No. 2176. [Class 38 (ii)] [Also in Group XL] An amplitude and phase adjusting network comprises a resistance capacity bridge 7 ... 10 one diagonal of which input from a transformer 2 is applied, a closed resistance 11 connected at diametrically opposite points to the four corners of the bridge, and output connections from the electrical centre 5 of the bridge and from a movable tapping 19 on the resistance 11 to an amplitude-adjusting potentionmeter 20 from which the final output is taken. The arrangement may be used in connection with cathode-ray oscillographs for examining amplifiers for distortion or for reducing interfering frequences in amplifiers by injecting the same frequences equal in amplitude and opposite in phase.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB217639A GB524095A (en) | 1939-01-21 | 1939-01-21 | Improvements in or relating to amplitude and phase adjusting networks for alternating current |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB217639A GB524095A (en) | 1939-01-21 | 1939-01-21 | Improvements in or relating to amplitude and phase adjusting networks for alternating current |
Publications (1)
Publication Number | Publication Date |
---|---|
GB524095A true GB524095A (en) | 1940-07-30 |
Family
ID=9734905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB217639A Expired GB524095A (en) | 1939-01-21 | 1939-01-21 | Improvements in or relating to amplitude and phase adjusting networks for alternating current |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB524095A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3170152A (en) * | 1961-06-08 | 1965-02-16 | Texas Eastern Trans Corp | Pipeline leak detection device |
DE1189596B (en) * | 1956-08-31 | 1965-03-25 | Siemens Ag | Circuit arrangement for generating an alternating voltage which can be freely selected in phase with respect to a reference position |
US3287628A (en) * | 1963-11-22 | 1966-11-22 | Philco Corp | Variable phase shifter having greater than 180 u deg. range utilizing fixed reactances and potentiometer to effect phase shift |
-
1939
- 1939-01-21 GB GB217639A patent/GB524095A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1189596B (en) * | 1956-08-31 | 1965-03-25 | Siemens Ag | Circuit arrangement for generating an alternating voltage which can be freely selected in phase with respect to a reference position |
US3170152A (en) * | 1961-06-08 | 1965-02-16 | Texas Eastern Trans Corp | Pipeline leak detection device |
US3287628A (en) * | 1963-11-22 | 1966-11-22 | Philco Corp | Variable phase shifter having greater than 180 u deg. range utilizing fixed reactances and potentiometer to effect phase shift |
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