Marine speed measuring device

Details Marine speed measuring device Marine speed measuring device

1987-10-22

1989-03-07

Woodiel, Donald O.

Measuring and testing

Navigation

Ship's log

G01C 2110

Patent

active

048095478

ABSTRACT:
A speed measuring device comprising an open ended venturi in a body having a streamlined support adapted for attachment to a boat hull or other large surface immersed in a fluid. Within the support is a cavity for transducers in fluid communication with the venturi to measure static fluid pressures therein. By means of a micro-controller and display the speed of the venturi and attached surface through the fluid can be continuously monitored and distance travelled calculated and displayed. Excessive angular displacement of the surface relative to the direction of movement can also be sensed and displayed in response to the static pressures sensed in the venturi.

REFERENCES:
patent: 2023568 (1935-12-01), Albersheim et al.
patent: 2573430 (1951-10-01), Gentile, Jr.
patent: 2979955 (1961-04-01), Shepler
patent: 4472966 (1984-09-01), Dumestre, III
patent: 4671109 (1987-06-01), Halmi

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