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Proceedings Paper

Multichannel and multiaxis inertial sensor concepts based on vibrating structures
Author(s): Colin H.J. Fox; Anthony Rourke; Rebecka Eley; Christopher Fell; Stewart McWilliam
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Paper Abstract

Single-axis rate sensors (rate gyroscopes) that utilize Coriolis coupling between a single pair of modes of a simple vibrating structure have been widely researched and are being used in increasing numbers in a range of aerospace, automotive and other applications. To meet market demands for such sensors, there are now significant pressures to reduce cost and size and to improve basic performance. Size and cost reduction will be achieved via MEMS technology, but size reduction and performance improvement are often conflicting requirements. This paper examines some smart alternatives to simple size reduction. The presented concepts allow more information to be measured by a single sensor structure by using more of the available spectrum of vibration modes available in the sensor structure. The concepts are illustrated in the form of a multi-channel rate sensor based on a vibrating cylinder and a multi-axis rate sensor based on a vibrating ring. Test results from prototype sensors are presented.

Paper Details

Date Published: 22 July 2003
PDF: 10 pages
Proc. SPIE 5050, Smart Structures and Materials 2003: Smart Sensor Technology and Measurement Systems, (22 July 2003); doi: 10.1117/12.484231
Show Author Affiliations
Colin H.J. Fox, Univ. of Nottingham (United Kingdom)
Anthony Rourke, Univ. of Nottingham (United Kingdom)
Rebecka Eley, BAE SYSTEMS (United Kingdom)
Christopher Fell, BAE SYSTEMS (United Kingdom)
Stewart McWilliam, Univ. of Nottingham (United Kingdom)

Published in SPIE Proceedings Vol. 5050:
Smart Structures and Materials 2003: Smart Sensor Technology and Measurement Systems
Daniele Inaudi; Eric Udd, Editor(s)

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