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Achieving specified bias stability

Question asked by kkuemmerle on Feb 8, 2013
Latest reply on Feb 11, 2013 by venkat

To achieve the minimum bias stability for a gyro, minimum on the root Allan curve, 12 deg/hr for the ADXLS646.  Does the bias need to be re-estimated/measured at the interval on the curve (about 30 sec for the 646).  If this is true what number from the data sheet can I use to estimate the gyro drift without updating the bias estimate.  For example if I perform a one time temperature calibration over my expected temperature range what gyro drift can I expect?