MEMS GYROCOMPASS
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United States of America Patent
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Issued Date -
Jun 29, 2023
app pub date -
Mar 2, 2023
filing date -
Oct 30, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A gyrocompass device is provided for determining a heading relative to a surface of a rotating planetary body. The gyrocompass device includes one or more MEMS gyroscopes that are each fixed in an orientation on a substrate that is parallel to a first plane and that each provide three or more sense axes that lie within the first plane and are each offset from one another by an offset angle. Moreover, a heading determiner receives rotation rates from the three sense axes and determines the heading of the gyrocompass device relative to the surface of the rotating planetary body by fitting a sine or cosine function to the received rotation rates from the one or more MEMS gyroscopes.
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