Abstract: A fluid pressure transducer comprises a housing having a fluid chamber bounded by a diaphragm. A strain gage transducer signal generating device is located in that fluid chamber. This signal generating device is protected from the effects of the fluid in the fluid chamber by a laterally flexible tubular enclosure having two opposite ends which are maintained relatively stationary. The diaphragm is coupled to the tubular enclosure between the opposite ends for laterally flexing the tubular enclosure. The strain gage transducer signal generating device is bonded to an inner wall surface of the tubular enclosure for measurement of the strain of a wall portion of the tubular enclosure during flexing.

Abstract: A deflection apparatus deflects a light beam in accordance with the characteristics of energizing signals to provide a trace of those signal characteristics on a display medium. The assembly includes a plurality of suspension galvanometers each having a coil responsive to an associated one of the signals to deflect a mirror positioned in the path of the light beam which in turn deflects the light beam. The galvanometers are suspended on a rigid supporting structure which is self-aligning. Pole pieces have a plurality of teeth which define secondary air gaps and provide a substantially constant, concentrated flux field for each of the coils. A printed circuit board cooperates with cover members to form a dust free enclosure.

Abstract: An apparatus for providing a signal in response to a force producing physical condition comprises a laterally flexible tubular enclosure having two opposite ends, and a housing for that tubular enclosure. Bothe ends Both the tubular enclosure are maintained relatively stationary and the above-mentioned force is picked up outside the tubular enclosure. The picked-up force is applied to the tubular enclosure between the relatively stationary ends and the tubular enclosure is laterally flexed with that applied force between its relatively stationary ends. A device for generating the above mentioned signal is located inside the tubular enclosure for generating that signal during the flexing of the tubular enclosure.

Abstract: A deflection apparatus deflects a light beam in accordance with the characteristics of energizing signals to provide a trace of those signal characteristics on a display medium. The assembly includes a plurality of suspension galvanometers each having a coil responsive to an associated one of the signals to deflect a mirror positioned in the path of the light beam which in turn deflects the light beam. The galvanometers are suspended on a rigid supporting structure which is self-aligning. Pole pieces have a plurality of teeth which define secondary air gaps and provide a substantially constant, concentrated flux field for each of the coils. A printed circuit board cooperates with cover members to form a dust free enclosure.