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Parametric Rotary Speed Sensor of Robust Motor Control

Emenike C. EJIOGU, Kazuhiko ONO, Yorimoto TANNO

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Summary :

If one of the R, L, or C Parameter of an RLC parallel circuit is changed periodically, under certain conditions, an oscillation called Parametric oscillation occurs. If one of remaining circuit elements is made to change due to an external cause (e.g. an external electric or magnetic field), then the parametric oscillation will experience some modulation. This modulation process and the subsequent demodulation can be exploited to create several types of sensors. In this letter, we describe the features of a new parametric magnetic speed sensor and its application in Induction motor robust control.

Publication
IEICE TRANSACTIONS on Electronics Vol.E77-C No.6 pp.1012-1017
Publication Date
1994/06/25
Publicized
Online ISSN
DOI
Type of Manuscript
LETTER
Category
Instrumentation and Control

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