Access Restriction

Author Benammar, M. ♦ Ben-brahim, L. ♦ Alhamadi, M.A. ♦ El-Naimi, M.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2006
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Signal resolution ♦ Signal generators ♦ Transducers ♦ Goniometers ♦ Defense industry ♦ Table lookup ♦ Educational institutions ♦ Electronic mail ♦ Costs ♦ Linearity
Abstract The paper presents a novel and low cost method for determining the angle from sine and cosine signals generated by angular position sensors such as resolvers and sinusoidal encoders. The proposed scheme is based upon the use of the pseudo-linearity of sinusoidal signals around zero crossings. By inputting the transducer signals to a programmable weighted summer, and using simple trigonometry, an analog output made up of 16 pseudo-linear segments may be generated. These segments cover the full 360deg range of input angle, and are identifiable using a set of 4 generated binary outputs. The binary outputs enable crude measurement of the angle with a step of 22.5deg, while the analog output refines measurement by enabling precise determination of the angle with an overall theoretical error of 0.018deg. The converter was built using basic analog components. Experimental results generated with a revolver showed excellent agreement with theory and simulation.
Description Author affiliation: Qatar Univ., Doha (Benammar, M.; Ben-brahim, L.; Alhamadi, M.A.; El-Naimi, M.)
ISBN 1424403758
ISSN 19300395
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2006-10-22
Publisher Place South Korea
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 1.51 MB
Page Count 4
Starting Page 1415
Ending Page 1418

Source: IEEE Xplore Digital Library