Electronic sextant

Details Electronic sextant Electronic sextant

1977-12-27

1980-04-15

Stephan, Steven L.

Geometrical instruments

Straight-line light ray type

Celestial

33282, G01C 1734

Patent

active

041976533

ABSTRACT:
An apparatus to be mounted on conventional sextants permitting faster, more accurate readings with memory storage capability. Alternative transducing means are attached to a sextant arm and generate electronic signals corresponding to amount of rotation of the arm. An electronic timing circuit is coupled to the angle signal generator such that both angle and time may be displayed instantaneously in digital format or stored for later display. Multiple memory circuits allow multiple sextant readings and times to be consecutively taken and stored without requiring separate acts of manual data recordation by the operator after each sighting.

REFERENCES:
patent: 2454264 (1948-11-01), Stigter
patent: 3571567 (1969-12-01), Eckermann
patent: 3968570 (1976-07-01), Leuchter

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