A high-performance optical system to reduce measuring errors and uncertainty in angular encoders is presented. We propose a novel reading optical head, which exploits a lens system to improve the speed of the beam crossing the photodetector and a quadrant photodiode to perform a zero-crossover acquisition of the timing information.
Design of a high-performance optical system for angular position measurement: optical and electronic strategies for uncertainty reduction / Rovati, Luigi. - STAMPA. - 2:(2003), pp. 1181-1184. (Intervento presentato al convegno 20th IEEE Instrumentation and Measurement Technology Conference tenutosi a Vail, Colorado, USA nel MAY 20-22, 2003).
Design of a high-performance optical system for angular position measurement: optical and electronic strategies for uncertainty reduction
ROVATI, Luigi
2003
Abstract
A high-performance optical system to reduce measuring errors and uncertainty in angular encoders is presented. We propose a novel reading optical head, which exploits a lens system to improve the speed of the beam crossing the photodetector and a quadrant photodiode to perform a zero-crossover acquisition of the timing information.
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