toysarchitect.com/4vision_sensing_tilt_ball_case_furby_ckt.htm
Attitude sensor can detect level, tilt or upside down. Photo of a attitude sensor located inside to Furby's chassis. How Attitude Sensors Work: Attitude sensor ...


www.wisegeek.com/what-is-self-leveling-suspension.htm
Sensors, typically electronic, are positioned on the vehicle's chassis in critical areas to determine the attitude of the vehicle. When a sensor indicates an unlevel ...



Patent US20080159841 - Coordinated Boom Lift and Carriage ...





www.google.com/patents/US20080159841


a vehicle chassis including a chassis angle sensor, the chassis angle sensor detecting an attitude of the chassis relative to true horizontal;. a transfer carriage ...