System for tracking angular and linear motion

Details System for tracking angular and linear motion System for tracking angular and linear motion

G - Physics

01

D

G01D 5/36 (2006.01)

Patent

CA 2386332

The invention provides a system for sensing angular motion. The system includes a light source, a transducing member, and a modulating member having a track of translucent and opaque regions positioned between the light source and the transducing member. The transducing member includes optical receivers spaced across a width larger than or equal to three translucent and three opaque regions. The optical receivers, which may be interlaced across the transducing member, generate a plurality of output signals that form at least one output channel signal. The system may further include a second track of translucent and opaque regions and a second interlaced transducing member. The second transducing member includes a second plurality of optical receivers arranged to generate a plurality of signals that may be used to generate at least one index signal.

The invention provides a system for sensing angular motion. The system includes a light source, a transducing member, and a modulating member having a track of translucent and opaque regions positioned between the light source and the transducing member. The transducing member includes optical receivers spaced across a width larger than or equal to three translucent and three opaque regions. The optical regions, which may be interlaced across the transducing member, generate a plurality of output signals that form at least one output channel signal. The system may further include a second track of translucent and opaque regions and a second interlaced transducing member. The second transducing member includes a second plurality of optical receivers arranged to generate a plurality of signals that may be used to generate at least one index signal.

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