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Servo performance enhancement of motion system via a quantization error estimation method—introduction to nanoscale servo control / Hirata, Mitsuo in IEEE transactions on industrial electronics, Vol. 56 N° 10 (Octobre 2009) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 56 N° 10 (Octobre 2009) . - pp. 3817 - 3824 Titre : Servo performance enhancement of motion system via a quantization error estimation method—introduction to nanoscale servo control Type de document : texte imprimé Auteurs : Hirata, Mitsuo, Auteur ; Kidokoro, Takahiro, Auteur Article en page(s) : pp. 3817 - 3824 Note générale : Génie electrique Langues : Anglais (eng) Mots-clés : Low-precision  sensors  Nanoscale  servo  control  Quantization  erreor Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : When compared to the accuracy of nanoscale control, the resolution of current positioning sensors is relatively low. Because of this, the output from low-precision sensors normally includes quantization errors that could degrade control performance. As a result, in this paper, a method of quantization error estimation based on the least square method is examined. In the proposed method, estimation accuracy is improved by taking into account the effect of input disturbances. Furthermore, a bias adjustment method is proposed that is expected to satisfy the constraints on quantization error. The effectiveness of the proposed method is demonstrated by simulations and experiments. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4796300 [article] Servo performance enhancement of motion system via a quantization error estimation method—introduction to nanoscale servo control [texte imprimé] / Hirata, Mitsuo, Auteur ; Kidokoro, Takahiro, Auteur . - pp. 3817 - 3824. Génie electrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 56 N° 10 (Octobre 2009) . - pp. 3817 - 3824 Mots-clés : Low-precision  sensors  Nanoscale  servo  control  Quantization  erreor Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : When compared to the accuracy of nanoscale control, the resolution of current positioning sensors is relatively low. Because of this, the output from low-precision sensors normally includes quantization errors that could degrade control performance. As a result, in this paper, a method of quantization error estimation based on the least square method is examined. In the proposed method, estimation accuracy is improved by taking into account the effect of input disturbances. Furthermore, a bias adjustment method is proposed that is expected to satisfy the constraints on quantization error. The effectiveness of the proposed method is demonstrated by simulations and experiments. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4796300