A robust capacitive angular speed sensor

被引：33

作者：

Fabian, T ^{[1
]}

Brasseur, G ^{[1
]}

机构：

[1] Univ Technol Vienna, Inst Allgemeine Elektrotech & Elektron, A-1040 Vienna, Austria

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 1998年 / 47卷 / 01期

关键词：

angular speed sensor; capacitive transducer; measurement; pulse amplitude modulation; ratiometric measurement principle;

D O I：

10.1109/19.728834

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a contactless capacitive angular speed sensor for automotive applications. The sensor is based on a passive rotating electrode placed 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 +/-4% at a resolution better than 1 degrees/s.

引用

页码：280 / 284

页数：5