Fiberglass collar for data transfer from rotatable shaft

Details Fiberglass collar for data transfer from rotatable shaft Fiberglass collar for data transfer from rotatable shaft

G - Physics

01

D

340/173, 26/201

G01D 5/26 (2006.01) G01D 5/16 (2006.01) G01L 3/10 (2006.01) G08C 23/04 (2006.01)

Patent

CA 1321250

Abstract of the Invention Telemetry apparatus for a rotating machine shaft includes a fixed collar of lightweight composite material wrapped on the shaft and having embedded in it telemetry apparatus. Measured data such as torque from a strain gauge sensor is transmitted to a stationary sensor by pulses of infrared signals. An array of photovoltaic cells receives energy from a stationary source to power the rotating telemetry apparatus. All rotating electronics is embedded in the composite material which may be, for example, E- type fiberglass. Such composite material provides a resistance to centrifugal, forces due to rotation of the shaft but has sufficient transparency to allow both the transmission of data and power to and from the rotating telemetry. A-48422/JGW

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