Lockheed Electronics Co., Inc.

David S Lerner

Gerald Lewis Freed

Circuitry monitors a plurality of rotating shafts, and provides a corresponding plurality of binary output words each characterizing the angular position of an associated shaft. Synchro and Scott 'T' per-shaft monitoring elements are sampled by common multiplexer-central processor units which provide derived shaft position and shaft rate information to an appropriate one of plural shaft position output processors. In accordance with varying aspects of the present invention, the output processors include a rate multiplier controlled by the computer generated shaft rate signal, and a counter presetable by the CPU generated position signal, and advanced (decremented) by the rate multiplier output.

Synchro-to-digital converter employing common processing apparatus

A circuit for monitoring the accuracy of the phase shift produced in an r.f. power distribution network in which the phase shift network includes diodes, means for sensing the conductive state of the terminating diodes, and structure for comparing the state of the diodes against a desired condition to provide a warning indication in the event the diodes are not in the proper condition to provide the desired phase shift.

Performance assurance apparatus for phased antenna array drives

An r.f. power distribution network or scanner in which a TEM mode and a pair of selectively phase-shifted TE.sub.11 modes are derived and applied to input ports of a cavity resonator to produce a desired r.f. power distribution at a plurality of output ports. The resonator is in the form of a generally cylindrical member in which the output ports are arranged circumferentially about the periphery and axially spaced from the TE.sub.11 mode input ports. The latter are arranged symmetrically about the TEM mode input port.

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Fanwood, NJ, United States of America

David S Lerner