FR2240433B1 - - Google Patents

Info

Publication number
FR2240433B1
FR2240433B1 FR7427309A FR7427309A FR2240433B1 FR 2240433 B1 FR2240433 B1 FR 2240433B1 FR 7427309 A FR7427309 A FR 7427309A FR 7427309 A FR7427309 A FR 7427309A FR 2240433 B1 FR2240433 B1 FR 2240433B1
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
FR7427309A
Other versions
FR2240433A1 (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 FR2240433A1 publication Critical patent/FR2240433A1/fr
Application granted granted Critical
Publication of FR2240433B1 publication Critical patent/FR2240433B1/fr
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
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/02—Rotary gyroscopes
    • G01C19/34—Rotary gyroscopes for indicating a direction in the horizontal plane, e.g. directional gyroscopes
    • G01C19/36—Rotary gyroscopes for indicating a direction in the horizontal plane, e.g. directional gyroscopes with north-seeking action by magnetic means, e.g. gyromagnetic compasses
FR7427309A 1973-08-07 1974-08-06 Expired FR2240433B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US386303A US3927474A (en) 1973-08-07 1973-08-07 Internally gimballed compass

Publications (2)

Publication Number Publication Date
FR2240433A1 FR2240433A1 (fr) 1975-03-07
FR2240433B1 true FR2240433B1 (fr) 1980-05-23

Family

ID=23525031

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7427309A Expired FR2240433B1 (fr) 1973-08-07 1974-08-06

Country Status (12)

Country Link
US (1) US3927474A (fr)
JP (1) JPS5072655A (fr)
CA (1) CA1009066A (fr)
CH (1) CH585391A5 (fr)
DE (1) DE2437134A1 (fr)
DK (1) DK418174A (fr)
FR (1) FR2240433B1 (fr)
GB (1) GB1432529A (fr)
IT (1) IT1018850B (fr)
NL (1) NL7410620A (fr)
NO (1) NO139144C (fr)
SE (1) SE394143B (fr)

Families Citing this family (15)

* 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
US4190962A (en) * 1978-04-06 1980-03-04 Lyman Harold T Jr Navigation devices
US4459759A (en) * 1982-08-04 1984-07-17 Sundstrand Data Control, Inc. Angular rate and position transducer for borehole survey instrument
US4611171A (en) * 1983-06-07 1986-09-09 Syntron, Inc. Location indicator for a marine seismic cable comprising operator controlled saturable core magnetometers
US4577414A (en) * 1985-04-30 1986-03-25 The United States Of America As Represented By The United States Department Of Energy Remotely readable fiber optic compass
US4606133A (en) * 1985-05-28 1986-08-19 Mills Floyd J High resolution digital inclinometer
JPS61283814A (ja) * 1985-06-10 1986-12-13 Tokyo Keiki Co Ltd ジヤイロ装置
US4843865A (en) * 1988-02-29 1989-07-04 Digicourse, Inc. Method of calibrating a compass heading
US5010653A (en) * 1988-02-29 1991-04-30 Digicourse, Inc. Apparatus and method for determining azimuth, pitch and roll
US5170566A (en) * 1990-06-05 1992-12-15 Arthur D. Little, Inc. Means for reducing interference among magnetometer array elements
US5201128A (en) * 1991-08-23 1993-04-13 The Laitram Corporation Miniature gimbal mounted magnetic field detectors
USD427531S (en) * 1999-08-12 2000-07-04 Cobbs Manufacturing Company Compass
US6784796B2 (en) 1999-12-17 2004-08-31 The Regents Of The University Of Califronia Magnetic vector field tag and seal
DE10253096A1 (de) * 2002-11-13 2004-06-03 Bundesdruckerei Gmbh Pfandwertgebinde, Verfahren zu seiner Herstellung und Verfahren zur Durchführung eines Pfandwertkreislaufs
CN103017786B (zh) * 2011-09-26 2016-02-17 东莞易步机器人有限公司 自平衡两轮车转向偏移量校准装置及校准方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2077849A (en) * 1933-05-08 1937-04-20 Moller Waldemar Compass follow-up
US2247288A (en) * 1938-06-04 1941-06-24 J Carpentier Sa Atel Gyromagnetic compass
US2292732A (en) * 1939-10-26 1942-08-11 Sperry Gyroscope Co Inc Universal indicator for aircraft
US2300685A (en) * 1940-03-13 1942-11-03 Sperry Prod Inc Universal flight instrument
US2446258A (en) * 1943-11-29 1948-08-03 Lockheed Aircraft Corp Compass
US2631455A (en) * 1946-06-29 1953-03-17 Sperry Corp Stable reference apparatus
US3349406A (en) * 1965-06-23 1967-10-24 Geodyne Corp Monitoring position-indicating recorder
US3568328A (en) * 1968-07-01 1971-03-09 Harrison & Co Ltd Patrick Aircraft compass
US3746842A (en) * 1971-09-27 1973-07-17 Laitram Corp Digital magnetic compass

Also Published As

Publication number Publication date
DK418174A (fr) 1975-03-24
IT1018850B (it) 1977-10-20
US3927474A (en) 1975-12-23
AU7209874A (en) 1976-02-12
FR2240433A1 (fr) 1975-03-07
DE2437134A1 (de) 1975-03-13
NL7410620A (nl) 1975-02-11
SE7410080L (fr) 1975-02-10
NO139144C (no) 1979-01-10
SE394143B (sv) 1977-06-06
CH585391A5 (fr) 1977-02-28
NO139144B (no) 1978-10-02
NO742816L (fr) 1975-03-03
CA1009066A (en) 1977-04-26
JPS5072655A (fr) 1975-06-16
GB1432529A (en) 1976-04-22

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Legal Events

Date Code Title Description
ST Notification of lapse