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Proceedings Paper

Uniform circular array for structural health monitoring of composite structures
Author(s): Tadeusz Stepinski; Marcus Engholm
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Paper Abstract

Phased array with all-azimuth angle coverage would be extremely useful in structural health monitoring (SHM) of planar structures. One method to achieve the 360° coverage is to use uniform circular arrays (UCAs). In this paper we present the concept of UCA adapted for SHM applications. We start from a brief presentation of UCA beamformers based on the principle of phase mode excitation. UCA performance is illustrated by the results of beamformer simulations performed for the narrowband and wideband ultrasonic signals. Preliminary experimental results obtained with UCA used for the reception of ultrasonic signals propagating in an aluminum plate are also presented.

Paper Details

Date Published: 10 April 2008
PDF: 11 pages
Proc. SPIE 6935, Health Monitoring of Structural and Biological Systems 2008, 69352A (10 April 2008); doi: 10.1117/12.785371
Show Author Affiliations
Tadeusz Stepinski, Uppsala Univ. (Sweden)
Marcus Engholm, Uppsala Univ. (Sweden)

Published in SPIE Proceedings Vol. 6935:
Health Monitoring of Structural and Biological Systems 2008
Tribikram Kundu, Editor(s)

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