THE REQUIREMENT FOR ANGLE MEASUREMENT IN THE PRESENCE OF TRANSLATION IS NOT UNCOMMON, YET TRADITIONAL ANGLE ENCODERS DO NOT ACCOMMODATE TRANSLATION, EVEN WHEN THE MEASUREMENT ANGLE IS SMALL.

THE REQUIREMENT FOR ANGLE MEASUREMENT IN THE PRESENCE OF TRANSLATION IS NOT UNCOMMON, YET TRADITIONAL ANGLE ENCODERS DO NOT ACCOMMODATE TRANSLATION, EVEN WHEN THE MEASUREMENT ANGLE IS SMALL. THE PROPOSED TECHNICAL APPROACH INVOLVES A NOVEL POSITION ENCODING ARRANGEMENT IN WHICH AN ABSOLUTE POSITION MEASUREMENT IS DERIVED FROM A SINGLE WIDE ENCODED TRACK WITH A NOVEL PATTERN OF DARK AND LIGHT BARS IMAGED ONTO A DETECTOR ARRAY ARRANGED PERPENDICULAR TO THE BARS. OPTELECOM PROPOSES TO DOCUMENT FUNCTIONAL SPECIFICATIONS, DEVELOP A PRELIMINARY ANGLE ENCODER DESIGN, WRITE A COMPUTER MODEL TO PREDICT DEVICE PERFORMANCE AND DEVELOP A PHASE II PROGRAM PLAN.