G - Physics – 08 – C
Patent
G - Physics
08
C
340/102
G08C 9/02 (1980.01) G08C 9/04 (1980.01)
Patent
CA 1143029
17MY-2783 ABSTRACT OF THE DISCLOSURE A multichannel data acquisition system for physical measurements on rotating members of operating machinery avoids slip rings and radio telemetry for data transfer by providing a capacitive coupling link between rotating and stationary members. Electronic circuitry mounted on the rotating member provides a pulse-code modulated signal containing the measured information for transmission through the capacitive coupling link. Power required to operate the rotating circuitry is inductively coupled from a stationary high- frequency source. The rotating circuitry includes a digital counter whose count is incremented by a momentary power interruption and whose digital output corresponds to a particular measuring range, allowing a range selection to be made during machinery operation.
354450
Hunt Gerald P.
Reschovsky John M.
Company General Electric
Eckersley Raymond A.
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