Automatic sextant
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United States of America Patent
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-
Aug 16, 1988
Issued Date -
N/A
app pub date -
Dec 18, 1986
filing date -
Mar 16, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sextant for indicating the angular separation between two objects, including two members interconnected at a pivot point, means for adjusting the angle between the members to be indicative of the angular separation between the objects, the means for adjusting including coarse and fine adjustment means, and a pair of encoders for converting the respective positions of the coarse and fine adjustment means to signals which are together indicative of the angular separation. In other aspects, there is a single encoder having a track on the sextant arc and a sensor on the tangent arm; and an indicator tells the user when the sextant has been set to the prestored altitudes of reference celestial bodies.
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