GB8407734D0 - Magnetic compass - Google Patents

Magnetic compass

Info

Publication number
GB8407734D0
GB8407734D0 GB848407734A GB8407734A GB8407734D0 GB 8407734 D0 GB8407734 D0 GB 8407734D0 GB 848407734 A GB848407734 A GB 848407734A GB 8407734 A GB8407734 A GB 8407734A GB 8407734 D0 GB8407734 D0 GB 8407734D0
Authority
GB
United Kingdom
Prior art keywords
magnetic compass
compass
magnetic
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.)
Granted
Application number
GB848407734A
Other versions
GB2159356A (en
GB2159356B (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.)
Aeronautical and General Instruments Ltd
Original Assignee
Aeronautical and General Instruments 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
Application filed by Aeronautical and General Instruments Ltd filed Critical Aeronautical and General Instruments Ltd
Priority to GB08407734A priority Critical patent/GB2159356B/en
Publication of GB8407734D0 publication Critical patent/GB8407734D0/en
Publication of GB2159356A publication Critical patent/GB2159356A/en
Application granted granted Critical
Publication of GB2159356B publication Critical patent/GB2159356B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/02—Magnetic compasses
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
    • G01C17/20—Observing the compass card or needle
    • G01C17/26—Observing the compass card or needle using electric pick-offs for transmission to final indicator, e.g. photocell
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/02—Magnetic compasses
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
GB08407734A 1984-03-26 1984-03-26 A magnetic compass adapted to provide a digital read-out Expired GB2159356B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08407734A GB2159356B (en) 1984-03-26 1984-03-26 A magnetic compass adapted to provide a digital read-out

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08407734A GB2159356B (en) 1984-03-26 1984-03-26 A magnetic compass adapted to provide a digital read-out

Publications (3)

Publication Number Publication Date
GB8407734D0 true GB8407734D0 (en) 1984-05-02
GB2159356A GB2159356A (en) 1985-11-27
GB2159356B GB2159356B (en) 1987-06-03

Family

ID=10558659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08407734A Expired GB2159356B (en) 1984-03-26 1984-03-26 A magnetic compass adapted to provide a digital read-out

Country Status (1)

Country Link
GB (1) GB2159356B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3699421A (en) * 1971-01-21 1972-10-17 Kollsman Instr Corp Tape position sensor, optical
US4047168A (en) * 1975-05-22 1977-09-06 The Laitram Corporation Digital compass and gimbal assembly for two conductor connection
GB1529843A (en) * 1976-08-17 1978-10-25 Marconi Co Ltd Digital compasses

Also Published As

Publication number Publication date
GB2159356A (en) 1985-11-27
GB2159356B (en) 1987-06-03

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee