ELECTRONIC APPARATUS FOR MEASURING ANGULAR

Brand	Owner	Address	Description
EDI	LUMEX, INC.	290 E. Helen Road Palatine IL 60067	ELECTRONIC APPARATUS FOR MEASURING ANGULAR ROTATION OF BODY JOINTS AND DETERMINING ANGULAR RANGE OF MOTION;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A method and system senses the attitude of an accelerating object by measuring acceleration with accelerometers in three orthogonal axes and measuring angular rate with angular rate sensors disposed about each such axis to compute attitude of the object accurately relative to a vertical axis. A processor updates a quaternion representation of attitude based upon the angular rate of the object, and a corrective rate signal is determined from level frame acceleration as a reference for a Kalman filter in calculating the attitude of the object. When velocity or airspeed is available from an external source, an aiding algorithm is employed to provide accurate attitude representations throughout all flight regimes.