Title :
New pseudorandom encoding technique for shaft encoders with any desired resolution
Author_Institution :
University of Ottawa, Department of Electrical Engineering, Ottawa, Canada
Abstract :
A new pseudorandom, two-track encoding procedure for absolute-type shaft encoders with any number of disc sectors has been developed. For n-bit resolution the new method requires only n + m reading heads, where 2m-1 < n¿2m. This is notably better than the 2n¿1 reading heads required by an earlier version.
Keywords :
angular measurement; binary sequences; digital circuits; encoding; angle measurement; disc sectors; n-bit resolution; pseudorandom binary sequence; pseudorandom encoding; reading heads; shaft encoders; two-track encoding;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870367
