Paddlewheel speed correction

Details Paddlewheel speed correction Paddlewheel speed correction

2006-09-19

2006-09-19

Raymond, Edward (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Speed

C701S021000

Reexamination Certificate

active

07110908

ABSTRACT:
A speed sensor for a marine vessel includes a correction circuit to correct any sensor non-linearities so that the sensor produces an output with a pulse stream having a constant pulse rate, and reduces the pulse-to-pulse variations of the pulse stream. The circuit can standardize the pulse stream to have a frequency corresponding to a standard rate.

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patent: RE33982 (1992-07-01), Boucher
patent: 5187978 (1993-02-01), Tendler
patent: 5369360 (1994-11-01), Amyot
patent: 5544076 (1996-08-01), Wiggerman et al.
patent: 5606253 (1997-02-01), Boucher et al.

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