Electronic compass and attitude sensing system

Details Electronic compass and attitude sensing system Electronic compass and attitude sensing system

1996-04-05

1997-11-18

Trammell, James P.

Boots, shoes, and leggings

364443, G01C 1738

Patent

active

056894457

ABSTRACT:
An electronic heading and attitude sensing subsystem which is fully integrated with the existing hardware of an acoustic Doppler current profiler (ADCP) oceanographic sonar suite to reduce the size and complexity of the apparatus. The subsystem uses a tri-state drive signal with relaxation periods and integration windows to synchronously drive the fluxgate magnetic sensors while reducing the effects of non-linearities and higher order harmonics which may result in heading errors. The present invention includes an electrolytic tilt sensor device and driving circuit which allow measurement of system vertical orientation without the effects of electrolyte conductivity are described. The present invention further includes methods of system calibration, magnetic perturbation modeling, and heading calculation.

REFERENCES:
patent: 3942258 (1976-03-01), Stucki et al.
patent: 4546551 (1985-10-01), Franks et al.
patent: 4677381 (1987-06-01), Geerlings
patent: 4953305 (1990-09-01), Van Lente et al.
patent: 5095631 (1992-03-01), Gavril et al.
patent: 5161311 (1992-11-01), Esmer et al.
patent: 5287295 (1994-02-01), Ives et al.

Affiliated with

Also associated with

Rating

Electronic compass and attitude sensing system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic compass and attitude sensing system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic compass and attitude sensing system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1570686