Title :
Absolute-type pseudorandom shaft encoder with any desired resolution
Author_Institution :
Polytechnic Institute `Traian Vuia¿, Timi¿oara, Romania
Abstract :
It is shown how to use a 2n¿1 length pseudorandom binary sequence to develop an absolute-type shaft encoder having any t resolution, where 2n¿1¿1<t<2n¿1. The shaft encoder rotating device has only two concentric code-track and 2n¿1 reading heads. A sequential code-conversion method is used to translate the pseudorandom patterns into natural binary code.
Keywords :
analogue-digital conversion; angular measurement; binary sequences; code convertors; sequential circuits; absolute-type shaft encoder; concentric code track heads; natural binary code; pseudorandom binary sequence; pseudorandom shaft encoder; reading heads; sequential code-conversion method;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850151
