Abstract: A system and method for determining a position of an articulated member with respect to a predetermined plane comprise a multi-axis accelerometer mounted to a first movable member of an articulated set of members. The multi-axis accelerometer produces a sinusoidal signal in proportion to a position of the member with respect to a predetermined set of axes of a predetermined plane. An motion controller operatively in communication with the multi-axis accelerometer determines the angle of inclination as the arctangent of two readings obtained from the accelerometer.

Abstract: This invention is directed to a system for actuating manipulator jaws. This system employs a double sided rack, each side of which engages a pinion at a first end of a rotatably mounted lever. The second end of each lever comprises a jaw region. The present invention may be used with subsea manipulators mounted on remotely operated vehicles (“ROV's”).

Abstract: The present invention relates to the field of rotary actuators. Specifically, the present invention relates to rotary actuators comprising a rotatable top piston assembly and a stationary bottom piston assembly wherein rotation of the top piston assembly can be caused by pressurizing one or more cavities between the top and bottom piston assemblies.