In-situ bias correction for MEMS accelerometers
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United States of America Patent
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Jan 23, 2018
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N/A
app pub date -
Nov 24, 2015
filing date -
May 15, 2015
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Abstract
In some examples, an accelerometer may self-calibrate while in use by setting a scale factor of the accelerometer to a first value; while the scale factor of the accelerometer is set to the first value, obtaining a first acceleration value; setting the scale factor of the accelerometer to a second value; while the scale factor of the accelerometer is set to the second value, obtaining a second acceleration value; based on the first acceleration value and the second acceleration value, determining a bias correction value; obtaining a third acceleration value; and correcting the third acceleration value based on the bias correction value.
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