Abstract
A digital data-gathering equipment provides facility for monitoring, recording and storing angular position data. It was developed under a Bureau of Ordnance contract for use in a synchro data transmission system but is not limited to this application. Two separate equipments comprise the system. A Data Recorder which accepts the electrical outputs of nine synchro generators (or less); converts the sine wave outputs to pulses; counts these to determine a time interval between the pulses representing the order and a reference pulse representing zero order; records the count on magnetic tape. The tape is applied to a laboratory equipment -- the Data Reproducer -- which, from the pulse code on the tape, makes trigger signals available to a card punching device which perforates a card in such manner as to completely express the position of the synchro generator shaft at the time of sample.
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