GB1325148A - Digital phase-correcting servo - Google Patents

Digital phase-correcting servo

Info

Publication number
GB1325148A
GB1325148A GB5138171A GB5138171A GB1325148A GB 1325148 A GB1325148 A GB 1325148A GB 5138171 A GB5138171 A GB 5138171A GB 5138171 A GB5138171 A GB 5138171A GB 1325148 A GB1325148 A GB 1325148A
Authority
GB
United Kingdom
Prior art keywords
output
phase
counter
magnitude
signal
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
GB5138171A
Other languages
English (en)
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.)
Mandrel Industries Inc
Original Assignee
Mandrel Industries Inc
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
Application filed by Mandrel Industries Inc filed Critical Mandrel Industries Inc
Publication of GB1325148A publication Critical patent/GB1325148A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/08—Networks for phase shifting
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/02—Generating seismic energy
    • G01V1/04—Details

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Acoustics & Sound (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Velocity Or Acceleration (AREA)
GB5138171A 1970-11-06 1971-11-04 Digital phase-correcting servo Expired GB1325148A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8739070A 1970-11-06 1970-11-06

Publications (1)

Publication Number Publication Date
GB1325148A true GB1325148A (en) 1973-08-01

Family

ID=22204904

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5138171A Expired GB1325148A (en) 1970-11-06 1971-11-04 Digital phase-correcting servo

Country Status (7)

Country Link
US (1) US3626267A (enExample)
AU (1) AU454098B2 (enExample)
BR (1) BR7107401D0 (enExample)
CA (1) CA955315A (enExample)
DE (1) DE2155128C3 (enExample)
FR (1) FR2112496B1 (enExample)
GB (1) GB1325148A (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3917987A (en) * 1973-12-28 1975-11-04 Fujitsu Ltd Voice coil motor control system
US4068210A (en) * 1976-04-07 1978-01-10 Standard Oil Company (Indiana) Seismic vibrator phase detector
US4300083A (en) * 1977-07-05 1981-11-10 Automation Devices, Inc. Constant amplitude controller and method
US4637307A (en) * 1983-09-13 1987-01-20 Genicom Corporation Automatic mechanical resonant frequency detector and driver for shuttle printer mechanism
GB8417241D0 (en) * 1984-07-06 1984-08-08 Unilever Plc Transducers and control means
US5212434A (en) * 1992-03-17 1993-05-18 National Science Counsil Phase-locked step motor speed servo controller
WO2015041850A1 (en) * 2013-09-19 2015-03-26 Conocophillips Company Method for synchronizing continuous seismic survey

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439336A (en) * 1965-09-29 1969-04-15 Vyzk Ustav Matemat Stroju Digital comparator
US3548282A (en) * 1969-01-27 1970-12-15 Security Trust Co Of Rochester Control system for motor velocity and position
US3564379A (en) * 1969-07-02 1971-02-16 Gen Electric Automatic position inspector

Also Published As

Publication number Publication date
AU454098B2 (en) 1974-10-17
FR2112496A1 (enExample) 1972-06-16
CA955315A (en) 1974-09-24
BR7107401D0 (pt) 1973-04-10
DE2155128C3 (de) 1974-02-28
AU3485871A (en) 1973-05-03
FR2112496B1 (enExample) 1978-01-06
DE2155128A1 (de) 1972-05-25
US3626267A (en) 1971-12-07
DE2155128B2 (de) 1973-08-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee