Running speed detecting device for marine vessels

Details Running speed detecting device for marine vessels Running speed detecting device for marine vessels

1988-03-07

1990-04-10

Gruber, Feix D.

Boots, shoes, and leggings

73182, G01P 514, G06F 1520

Patent

active

049166441

ABSTRACT:
A watercraft speed sensor that drives a speed signal from water pressure generated by the movement of the watercraft through the water. Several embodiments of arrangements are disclosed for obtaining an ambient reference signal which is subtracted from the measured pressure signal in order to obtain a greater degree of accuracy for changes in atmospheric conditions.

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patent: 4409827 (1983-10-01), Overs
patent: 4622850 (1986-11-01), Gaffrig
patent: 4759216 (1988-07-01), Carpenter et al.

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