NL7706719A - DEVICE FOR CORRECTING THE INDICATION OF A MAGNETIC COMPASS. - Google Patents

DEVICE FOR CORRECTING THE INDICATION OF A MAGNETIC COMPASS.

Info

Publication number
NL7706719A
NL7706719A NL7706719A NL7706719A NL7706719A NL 7706719 A NL7706719 A NL 7706719A NL 7706719 A NL7706719 A NL 7706719A NL 7706719 A NL7706719 A NL 7706719A NL 7706719 A NL7706719 A NL 7706719A
Authority
NL
Netherlands
Prior art keywords
correcting
indication
magnetic compass
compass
magnetic
Prior art date
Application number
NL7706719A
Other languages
Dutch (nl)
Other versions
NL190247B (en
NL190247C (en
Original Assignee
Laitram Corp
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 claimed from US05/697,194 external-priority patent/US4091543A/en
Priority claimed from US05/697,195 external-priority patent/US4031630A/en
Application filed by Laitram Corp filed Critical Laitram Corp
Publication of NL7706719A publication Critical patent/NL7706719A/en
Publication of NL190247B publication Critical patent/NL190247B/en
Application granted granted Critical
Publication of NL190247C publication Critical patent/NL190247C/en

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
    • G01C17/38—Testing, calibrating, or compensating of compasses

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Navigation (AREA)
  • Measuring Magnetic Variables (AREA)
NLAANVRAGE7706719,A 1976-06-17 1977-06-17 DEVICE FOR CORRECTING A MAGNETIC DEVIATION ERROR FROM A COMPASS. NL190247C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/697,194 US4091543A (en) 1976-06-17 1976-06-17 Automatic magnetic compass correction
US05/697,195 US4031630A (en) 1976-06-17 1976-06-17 Calibration apparatus for automatic magnetic compass correction

Publications (3)

Publication Number Publication Date
NL7706719A true NL7706719A (en) 1977-12-20
NL190247B NL190247B (en) 1993-07-16
NL190247C NL190247C (en) 1993-12-16

Family

ID=27105960

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7706719,A NL190247C (en) 1976-06-17 1977-06-17 DEVICE FOR CORRECTING A MAGNETIC DEVIATION ERROR FROM A COMPASS.

Country Status (4)

Country Link
DE (1) DE2727132A1 (en)
GB (1) GB1579673A (en)
NL (1) NL190247C (en)
NO (1) NO772126L (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4143467A (en) * 1978-05-01 1979-03-13 Sperry Rand Corporation Semi-automatic self-contained magnetic azimuth detector calibration apparatus and method
DE2946321A1 (en) * 1979-11-16 1981-05-21 Teldix Gmbh, 6900 Heidelberg Correction system for vehicle magnetic compass - obtains correction function for each indicated bearing by fourier analysis of error curve
FR2484079A1 (en) * 1980-06-05 1981-12-11 Crouzet Sa METHOD FOR COMPENSATING MAGNETIC DISTURBANCES IN THE DETERMINATION OF A MAGNETIC CAP, AND DEVICE FOR IMPLEMENTING SAID METHOD
US4443117A (en) * 1980-09-26 1984-04-17 Terumo Corporation Measuring apparatus, method of manufacture thereof, and method of writing data into same
US4672565A (en) * 1981-03-10 1987-06-09 Nippon Soken, Inc. Direction detecting system for vehicles
FR2507770A1 (en) * 1981-06-11 1982-12-17 Crouzet Sa Magnetic field perturbation compensating system for aircraft - analyses development of modulus of earth field perturbed in space to transform ellipsoidal theoretical sphere
DE3123180A1 (en) * 1981-06-11 1983-01-05 Siemens AG, 1000 Berlin und 8000 München CORRECTION METHOD AND DEVICE FOR A MAGNETIC PROBE
FR2514497A1 (en) * 1981-10-08 1983-04-15 Jaeger HOT WIRE LEVEL DIGITAL LEVEL DETECTION DEVICE
GB2116720B (en) * 1982-03-08 1986-03-12 Roeh Ind Ltd Flow rate sensor
GB2119095B (en) * 1982-03-31 1985-12-24 Goldcrest Electronics Limited Data processing systems for motor vehicles
GB2130729B (en) * 1982-10-12 1986-05-14 Plessey Co Plc Electronic compasses
JPS5991311A (en) * 1982-10-12 1984-05-26 ロケ　マナ　リサーチ　リミテッド Electronic compass for transport means
JPS601510A (en) * 1983-06-17 1985-01-07 Honda Motor Co Ltd Correcting method of vehicle mounted geomagnetism sensor
DE4001657A1 (en) * 1990-01-18 1991-07-25 Carl Steiner Position measurement arrangement measures earth's magnetic field - uses high permeability annular element in toroid carrying stimulation and receiving coils
GB9002949D0 (en) * 1990-02-09 1990-04-04 Nautech Ltd Autopilot system
DE10130522B4 (en) * 2001-06-25 2004-05-27 Siemens Ag Method for correcting the magnetic declination of a compass unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031766A (en) * 1958-07-29 1962-05-01 Lear Inc Magnetic compass compensating system
US3746842A (en) * 1971-09-27 1973-07-17 Laitram Corp Digital magnetic compass
US3848455A (en) * 1973-03-20 1974-11-19 P Banner Magnetic compass corrector means

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3634946A (en) * 1969-02-10 1972-01-18 Lundy Electronics & Syst Inc Digital compass
US3683668A (en) * 1971-01-26 1972-08-15 Sperry Rand Corp Compass calibrator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031766A (en) * 1958-07-29 1962-05-01 Lear Inc Magnetic compass compensating system
US3746842A (en) * 1971-09-27 1973-07-17 Laitram Corp Digital magnetic compass
US3848455A (en) * 1973-03-20 1974-11-19 P Banner Magnetic compass corrector means

Also Published As

Publication number Publication date
NL190247B (en) 1993-07-16
NO772126L (en) 1977-12-20
GB1579673A (en) 1980-11-19
NL190247C (en) 1993-12-16
DE2727132C2 (en) 1988-09-15
DE2727132A1 (en) 1978-01-05

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
A85 Still pending on 85-01-01
BB A search report has been drawn up
BC A request for examination has been filed
V1 Lapsed because of non-payment of the annual fee

Effective date: 19960101