ADVANCED DEVICE FOR INGROUND APPLICATIONS AND ASSOCIATED METHODS
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United States of America Patent
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Issued Date -
Sep 19, 2013
app pub date -
Mar 14, 2013
filing date -
Mar 15, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A device is described for use in performing an inground operation. An accelerometer is supported by the device for generating accelerometer readings that characterize the inground operation subject to a native temperature drift of the accelerometer. A set of compensation data is developed and stored for use in compensating for the native temperature drift. The compensation data is applied to the accelerometer readings to produce compensated accelerometer readings that externally compensate for the native temperature drift to yield an enhanced thermal performance which is improved as compared to a native thermal performance of the accelerometer. A seven position calibration method for a triaxial accelerometer is described. An air module is described which isolates the accelerometer of the device at least from a potting compound that at least fills otherwise unoccupied volumes of the device interior.
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