Patent ID: 6583728
Filing Date: 2003-06-24
Classification: B63B,G01D

Abstract:
A trim tab position monitor, comprising:a sensing circuit connected in signal communication with a stator of a motor, said motor having a rotor which is operatively connected to said trim tab for moving said trim tab relative to a marine vessel, said sensing circuit being configured to provide a first output signal which is representative of an electrical characteristic of said motor; a direction determining circuit connected in electrical communication with said sensing circuit, said direction determining circuit being configured to provide a second output signal which is representative of a rotational direction of said rotor of said motor; a counter connected in electrical communication with said sensing circuit, is said counter being configured to provide a third output signal which is representative of a preselected number of magnitude changes of said first output signal of said motor; and a signal output device connected in electrical communication with said counter for providing a fourth output signal which is representative of the position of said trim tab relative to said motor.