A Robust Capacitive Angular Speed Sensor

Tibor Fabian; Georg Brasseur

doi:10.1109/19.728834

A Robust Capacitive Angular Speed Sensor

Research output: Contribution to journal › Article › peer-review

Abstract

This paper presents a contactless capacitive angular speed sensor for automotive applications. The sensor is based on a passive rotating electrode plated between two mechanically static and electrically active electrodes. Differing characteristics of the charge transfer at various sensor positions is utilized as an input for the determination of the rotational speed. The mathematical model of the sensor further enables the optimization of the sensor characteristics for specific applications. Experimental results from a prototype designed for the speed measurement of a steering wheel show a relative speed error of /spl plusmn/4% at a resolution better than 1/spl deg//s.

Original language	English
Pages (from-to)	280-284
Journal	IEEE Transactions on Instrumentation and Measurement
Volume	47
Issue number	1
DOIs	https://doi.org/10.1109/19.728834
Publication status	Published - Feb 1998
Externally published	Yes

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10.1109/19.728834

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title = "A Robust Capacitive Angular Speed Sensor",

abstract = "This paper presents a contactless capacitive angular speed sensor for automotive applications. The sensor is based on a passive rotating electrode plated between two mechanically static and electrically active electrodes. Differing characteristics of the charge transfer at various sensor positions is utilized as an input for the determination of the rotational speed. The mathematical model of the sensor further enables the optimization of the sensor characteristics for specific applications. Experimental results from a prototype designed for the speed measurement of a steering wheel show a relative speed error of /spl plusmn/4% at a resolution better than 1/spl deg//s.",

author = "Tibor Fabian and Georg Brasseur",

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AB - This paper presents a contactless capacitive angular speed sensor for automotive applications. The sensor is based on a passive rotating electrode plated between two mechanically static and electrically active electrodes. Differing characteristics of the charge transfer at various sensor positions is utilized as an input for the determination of the rotational speed. The mathematical model of the sensor further enables the optimization of the sensor characteristics for specific applications. Experimental results from a prototype designed for the speed measurement of a steering wheel show a relative speed error of /spl plusmn/4% at a resolution better than 1/spl deg//s.

U2 - 10.1109/19.728834

DO - 10.1109/19.728834

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JO - IEEE Transactions on Instrumentation and Measurement

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A Robust Capacitive Angular Speed Sensor

Abstract

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