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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Universidad Nacional de Colombia
2013
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=64328224010 |
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Sommario:
- An optimal algorithm for estimating angular speed using incremental encoders José Danilo Rairán Antolines Ingeniería time Fixed space fixed estimating speed This paper proposes a new algorithm using signals from an incremental encoder for estimating a rotating shaft’s speed. This algorithm eliminated the oscillations appearing in classical fixed-time and fixed-space algorithms, even when speed was constant. A fixed-time algorithm measures angular displacement at fixed-time intervals, while a fixed-space algorithm measures time every fixed-angular displacement. Time and displacement measurements were used to generate estimations for speed. The new algorithm generated a unique value for estimating speed due to synchronising encoder pulses and a signal formed by impulses every time increase (delta). A first modification of the proposed algorithm was defined, resulting in the harmonic mean between these two proposed alternatives having the smallest relative error possible. This error was always smaller than half the error with fixed-time and fixed-space algorithms. Experimental setup and algorithms are shown, as well as Simulink results using signals acquired from an incremental encoder. 2013 artículo científico 0120-5609 https://www.redalyc.org/articulo.oa?id=64328224010 en http://www.redalyc.org/revista.oa?id=643 Ingeniería e Investigación application/pdf Universidad Nacional de Colombia Ingeniería e Investigación (Colombia) Num.2 Vol.33