Title :
Design of a high-performance optical system for angular position measurement: optical and electronic strategies for uncertainty reduction
Author_Institution :
Dept. of Inf. Eng., Modena Univ., Italy
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.
Keywords :
angular measurement; measurement errors; measurement uncertainty; optical design techniques; optical sensors; position measurement; angular encoder; angular position measurement; beam speed; lens system; measurement error; measurement uncertainty; optical system; photodetector; quadrant photodiode; reading optical head; timing information; uncertainty reduction; zero-crossover acquisition; Extraterrestrial measurements; Glass; Optical design; Optical sensors; Photodetectors; Position measurement; Preamplifiers; Stimulated emission; Timing; Velocity measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2003. IMTC '03. Proceedings of the 20th IEEE
Print_ISBN :
0-7803-7705-2
DOI :
10.1109/IMTC.2003.1207939
