Vessel speed detecting device

Details Vessel speed detecting device Vessel speed detecting device

1988-10-14

1990-09-18

Woodiel, Donald O.

Measuring and testing

Navigation

Ship's log

364443, G01C 2110

Patent

active

049569970

ABSTRACT:
A vessel speed detecting device that incorporates an arrangement for providing a more accurate speed indication from a pressure transducer under the condition of abrupt vessel speed changes. The output signal from the pressure transducer is modified under these conditions to provide the more accurate speed indication signal. The abrupt vessel speed change is determined by comparing the output of the speed indicator with a previously memorized speed indication signal. The modified speed indication is obtained from a memory.

REFERENCES:
patent: 3824577 (1974-07-01), Stickney
patent: 4669046 (1987-05-01), Kubo

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