FR2316579B1 - - Google Patents

Info

Publication number
FR2316579B1
FR2316579B1 FR7618465A FR7618465A FR2316579B1 FR 2316579 B1 FR2316579 B1 FR 2316579B1 FR 7618465 A FR7618465 A FR 7618465A FR 7618465 A FR7618465 A FR 7618465A FR 2316579 B1 FR2316579 B1 FR 2316579B1
Authority
FR
France
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
FR7618465A
Other languages
French (fr)
Other versions
FR2316579A1 (fr
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.)
Laitram LLC
Original Assignee
Laitram LLC
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 Laitram LLC filed Critical Laitram LLC
Publication of FR2316579A1 publication Critical patent/FR2316579A1/fr
Application granted granted Critical
Publication of FR2316579B1 publication Critical patent/FR2316579B1/fr
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Measuring And Other Instruments (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Level Indicators Using A Float (AREA)
FR7618465A 1975-06-17 1976-06-17 Compas magnetique a lecture a distance Granted FR2316579A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/587,720 US4027398A (en) 1975-06-17 1975-06-17 Single pivot remote reading compass

Publications (2)

Publication Number Publication Date
FR2316579A1 FR2316579A1 (fr) 1977-01-28
FR2316579B1 true FR2316579B1 (enExample) 1982-05-07

Family

ID=24350930

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7618465A Granted FR2316579A1 (fr) 1975-06-17 1976-06-17 Compas magnetique a lecture a distance

Country Status (5)

Country Link
US (1) US4027398A (enExample)
DE (1) DE2627492A1 (enExample)
FR (1) FR2316579A1 (enExample)
GB (1) GB1556406A (enExample)
NO (1) NO762078L (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1600108A (en) * 1977-04-14 1981-10-14 Hennessy John Brian Magnetic compasses
US4425716A (en) 1981-08-13 1984-01-17 The Laitram Corporation Floating non-gimballed compass
US4471534A (en) * 1982-11-24 1984-09-18 The Laitram Corporation Remote reading compass with 360 degree roll capability
US4671120A (en) * 1983-04-25 1987-06-09 The Laitram Corporation Combined heading and depth sensor
US4611171A (en) * 1983-06-07 1986-09-09 Syntron, Inc. Location indicator for a marine seismic cable comprising operator controlled saturable core magnetometers
GB2186694B (en) * 1986-02-13 1991-07-24 Brookes & Gatehouse Direction sensing device
GB2209835A (en) * 1987-09-15 1989-05-24 Rory Paul Wilson A miniaturized dead reckoning automatic position sensor and recorder for attachment to animals
US5010653A (en) * 1988-02-29 1991-04-30 Digicourse, Inc. Apparatus and method for determining azimuth, pitch and roll
US4843865A (en) * 1988-02-29 1989-07-04 Digicourse, Inc. Method of calibrating a compass heading
US6286220B1 (en) 1999-11-30 2001-09-11 Directional Robotics, Inc. Reflective compass device
EP1636545A4 (en) * 2003-05-23 2007-10-24 Rule Industries SELF-BALANCING, NON-ROTATION MAGNETIC COMPASS
ES2339312B1 (es) * 2007-08-09 2011-03-11 Universidad Del Pais Vasco - Euskal Herriko Unibertsitatea Equipo de compas magnetico integral para obtencion de desvios en tiempo real.

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US111169A (en) * 1871-01-24 Improvement in liquid-compasses
GB190919057A (en) * 1909-08-19 1910-02-03 Kelvin And James White Ltd Improvements in Magnetic Compasses.
GB467735A (en) * 1934-12-07 1937-06-22 Sperry Prod Inc Improvements in or relating to magnetic compass devices
US3374549A (en) * 1966-05-09 1968-03-26 William H Anderson Orientator
US3588001A (en) * 1969-02-05 1971-06-28 Bendix Corp Shock-absorbing means for a free pendulous magnetic azimuth detector mechanism
DE1933551A1 (de) * 1969-07-02 1971-01-07 Prefag Carl Rivoir & Co Fluessigkeitsgefuellter Magnetkompass
US3746842A (en) * 1971-09-27 1973-07-17 Laitram Corp Digital magnetic compass
US3888016A (en) * 1972-08-10 1975-06-10 Little Inc A Digital compass
US3833901A (en) * 1972-08-28 1974-09-03 Little Inc A Magnetic compass having remote digital readout

Also Published As

Publication number Publication date
NO762078L (enExample) 1976-12-20
US4027398A (en) 1977-06-07
DE2627492A1 (de) 1977-01-13
GB1556406A (en) 1979-11-21
FR2316579A1 (fr) 1977-01-28

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Legal Events

Date Code Title Description
ST Notification of lapse