초록 ▼

Binary information developed on a rotating member is applied in the form of light signals to one end of an optical fiber which is disposed about the rotating member and positioned adjacent a stationary light detector. The surface of the optical fiber is roughened so that a portion of the light that

Binary information developed on a rotating member is applied in the form of light signals to one end of an optical fiber which is disposed about the rotating member and positioned adjacent a stationary light detector. The surface of the optical fiber is roughened so that a portion of the light that axially propagates along the optical fiber is transmitted through the roughened wall of the fiber and is received at the light detector. The latter converts the thus received light signals into corresponding binary signals. In accordance with one aspect of the present invention, plural independent data coupling channels may be employed.

대표청구항 ▼

Data coupling apparatus for transmitting data generated on one of a rotating member and a nonrotating member to the other of said member, said apparatus comprising an optical fiber carried by one of said rotating and nonrotating members and adapted to receive optical signals at one axial end thereof

Data coupling apparatus for transmitting data generated on one of a rotating member and a nonrotating member to the other of said member, said apparatus comprising an optical fiber carried by one of said rotating and nonrotating members and adapted to receive optical signals at one axial end thereof, optical detecting means in optical communication with the outer wall surface of said optical fiber and carried by the other of said rotating and non-rotating members, the outer wall surface being modified to allow a portion of light propagating axially through said optical fiber to pass through said outer wall surface to said optical detecting means, in which said rotating member is a rotating shaft, said optical fiber being disposed about the periphery of said shaft and rotating therewith.