Abstract: A sensor includes a first plate, a second plate, and a piezoelectric material portions. The piezoelectric material portions are positioned between the first plate and the second plate. The area of the piezoelectric material portions is less than the area of the plates. The plates can be supported with a center support structure. The width of the sensor is significantly greater than its height. The interstitial space is filled with a flexible material.

Abstract: Methods of transmitting an information signal in a satellite communications system include splitting the information signal into a first signal component and a second signal component, transmitting the first signal component to a first system element of the satellite communications system, transmitting the second signal component to a second system element of the satellite communications system, combining the first signal component and the second signal component to form a combined signal, and recovering the information signal from the combined signal. Related systems and components are also disclosed.

Abstract: A machine tool collet having a generally cylindrical body with a longitudinal axis. The collet is divided into a plurality of segments each having front and rear surfaces and endfaces with recesses. The recesses hold biasing springs which force each segment away from the adjacent segment.

Abstract: A collet assembly comprising a spring body member having a cylindrical rear portion and a plurality of spring fingers extending axially therefrom, with an annular bead on the external periphery of the spring fingers near the distal end thereof. Work gripping pads for gripping the exterior of the workpiece are mounted on each of the fingers, and the pads have a groove on the interior thereof for mounting the pads on the beads on the spring fingers. The pads have an exterior surface which forms a frusto-conical cam surface for cooperative engagement with an actuator sleeve, and the pads are free to rock slightly axially on the beads when the collet is opened or closed.Also disclosed are the spring body and the pads for use therewith.