GB703189A - Improvements in or relating to relative phase responsive arrangements - Google Patents

Improvements in or relating to relative phase responsive arrangements

Info

Publication number
GB703189A
GB703189A GB1635851A GB1635851A GB703189A GB 703189 A GB703189 A GB 703189A GB 1635851 A GB1635851 A GB 1635851A GB 1635851 A GB1635851 A GB 1635851A GB 703189 A GB703189 A GB 703189A
Authority
GB
United Kingdom
Prior art keywords
circuit
pulses
valves
stability
phase
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
Application number
GB1635851A
Inventor
Noel Meyer Rust
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to FR982752D priority Critical patent/FR982752A/en
Application filed by Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB1635851A priority patent/GB703189A/en
Publication of GB703189A publication Critical patent/GB703189A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
    • H04N5/126—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal indirectly commands a frequency generator
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/35—Details of non-pulse systems
    • G01S7/352—Receivers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/40—Synchronising a generator for connection to a network or to another generator
    • H02J3/42—Synchronising a generator for connection to a network or to another generator with automatic parallel connection when synchronisation is achieved
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D13/00—Circuits for comparing the phase or frequency of two mutually-independent oscillations
    • H03D13/003—Circuits for comparing the phase or frequency of two mutually-independent oscillations in which both oscillations are converted by logic means into pulses which are applied to filtering or integrating means

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

703,189. Phase-difference measurements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 20, 1952 [July 10, 1951], No. 16358/ 51. Class 37 A phase responsive arrangement comprises means for producing, from each of the waves to be compared, one pulse per cycle at a predetermined point in the cycle, a multi-vibrator circuit, means controlled by the produced pulses for controlling the operation of this circuit between its two conditions of stability, in dependence upon the phase relation between the pulses from the two waves, and means for charging a condenser at a predetermined rate in one direction or the other according to the condition of stability of the circuit. The, two waves to be compared are fed at A1, B1 to two separate channels A,' B and amplified by amplifiers A2, B2, the amplifier A2 being followed by a phase changer A3, squaring circuit A4, and differentiating circuit A5. The amplifier B2 is followed by a squaring circuit B4, and differentiating circuit B5. The outputs of the circuits A5, B5 are fed to selector circuits A6, B6 which select only the pulses of the same predetermined polarity, which are fed to the grids of the valves VA, VB of a multi-vibrator circuit having two conditions of stability, in one of which only the valve VA conducts and in the other of which only the valve VB conducts. Each pulse occurs when the wave passes through zero in 'one chosen direction only. If the pulses from channel B. occur midway between those from channel A the periods during which the two conditions of stability exist will be equal, but for all other relative phases between the inputs A1, B1 these periods will be unequal. Connected between the anode circuits of the valves VA, VB is a condenser CAB, which is charged in one direction or the other according to whether VA or VB is conductive. The voltage across this condenser represents by its sign and magnitude the phase relation between the inputs to A1, B1 and may be applied to actuate a voltmeter or to produce a control action. Condensers 1C, 2C may be connected in the anodegrid cross connections between the valves VA, VB to make the circuit frequency-selective so that a multi-vibrator action occurs wherein. the conduction changes of the valves become automatic at a desired frequency.
GB1635851A 1951-07-10 1951-07-10 Improvements in or relating to relative phase responsive arrangements Expired GB703189A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR982752D FR982752A (en) 1951-07-10 1949-03-09 Phase comparison method in control systems
GB1635851A GB703189A (en) 1951-07-10 1951-07-10 Improvements in or relating to relative phase responsive arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1635851A GB703189A (en) 1951-07-10 1951-07-10 Improvements in or relating to relative phase responsive arrangements

Publications (1)

Publication Number Publication Date
GB703189A true GB703189A (en) 1954-01-27

Family

ID=10075857

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1635851A Expired GB703189A (en) 1951-07-10 1951-07-10 Improvements in or relating to relative phase responsive arrangements

Country Status (2)

Country Link
FR (1) FR982752A (en)
GB (1) GB703189A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877416A (en) * 1953-03-02 1959-03-10 Marconi Wireless Telegraph Co Phase measuring circuit arrangements
US3177428A (en) * 1959-10-30 1965-04-06 Borg Warner Phase detector including capacitive averaging and mixing means
US3324399A (en) * 1964-06-19 1967-06-06 Vitro Corp Of America Linear phase demodulator
US3954335A (en) * 1972-06-19 1976-05-04 Siemens Ag Method and apparatus for measuring range and speed of an object relative to a datum plane

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1082975A (en) * 1964-05-07 1967-09-13 Plessey Uk Ltd Apparatus for frequency and phase comparison of two periodic signals
DE3828049A1 (en) * 1988-08-18 1990-02-22 Ant Nachrichtentech METHOD AND ARRANGEMENT FOR DETERMINING THE PHASE DIFFERENCE BETWEEN TWO CARRIER SIGNALS

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877416A (en) * 1953-03-02 1959-03-10 Marconi Wireless Telegraph Co Phase measuring circuit arrangements
US3177428A (en) * 1959-10-30 1965-04-06 Borg Warner Phase detector including capacitive averaging and mixing means
US3324399A (en) * 1964-06-19 1967-06-06 Vitro Corp Of America Linear phase demodulator
US3954335A (en) * 1972-06-19 1976-05-04 Siemens Ag Method and apparatus for measuring range and speed of an object relative to a datum plane

Also Published As

Publication number Publication date
FR982752A (en) 1951-06-14

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