Marine auto pilot

Details Marine auto pilot Marine auto pilot

1976-04-05

1977-11-22

Kunin, Stephen G.

Ships

Steering mechanism

Remote control steering excluding manual operation

33363R, 318588, 318647, B63H 2502

Patent

active

040590640

ABSTRACT:
A marine auto pilot employing a compass with a Hall-effect sensing element in conjunction with a magnetic circuit designed to provide a high intensity magnetic field; electrical circuitry designed to produce high servo-loop gain at frequencies lower than the normal sea wave frequencies, and lower gain at the normal sea wave frequencies; a D.C. Linear Motor drive system in conjunction with a rudder position feedback signal; and a linear ball-screw and nut gearing system for converting the high-speed output of the direct current drive motor to a low-speed high-torque drive at the rudder, having the nut and ball-screw connected through rolling contact balls.

REFERENCES:
patent: 3237583 (1966-03-01), Johnson
patent: 3741474 (1973-06-01), Kawada et al.
patent: 3946691 (1976-03-01), Freeman

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