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US 4,757,243 AGranted
Method and means for a regulator for the servo control of a marine craft
AssigneeAffarsverket FFV
InventorsLeif Bengtsson, Nils Danielsson
Life of this patent
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Abstract
Method and means for a regulator for the servo control of a marine craft, for instance a torpedo, with variable speed and angle of attack. A first sensor (1) monitors the angle of attack, while a second sensor (8) monitors the depth of the craft. A revolution counter (3) and a filter (4) create an acceleration-compensating signal which is subtracted from an angle-of-attack signal emitted by the first sensor (1), whereupon the signal is transmitted to a rudder servo system.
Claims2
A control system for a marine craft comprising:
- a sensor for detecting the angle of attack of a marine craft and transmitting a command signal representing the angle of attack to a control circuit in a regulator for servo control of marine craft;
- the sensor being of the acceleration sensitive type, such as a pendulum or an electrolytic angle of attack indicator such that said command signal is a true angle of attack signal only if the marine craft travels at a constant speed;
- a transmitter for generating a signal representing a variation in the speed of the marine craft;
- and
- a summing circuit for subtracting said signal representing a variation in the speed of the marine craft from said command signal in order to generate an acceleration compensated angle of attack signal.
2 more elements
Dependencies are inferred from the claim text.