Publications
Errors arising from three-dimensional energy density sensing in one-dimensional sound fields
Ben S. Cazzolato, Colin H. Hansen (2000)
Journal of Sound and Vibration, 236 (3), p375-400Abstract:
The performance of four different configurations of three-dimensional acoustic energy density sensors are evaluated for two idealised one-dimensional sound fields, namely; a reactive single mode and a propagating plane wave. The 4 configurations of sensors are; two types of 4 microphone arrangements, a 6 microphone arrangement and a 7 microphone arrangement. Like the companion paper for one-dimensional sensors by the same authors this paper investigates the bias errors arising from four error types, namely; inherent, phase mismatch, sensitivity mismatch and spatial errors. It is shown that for plane wave conditions a 4 microphone arrangement is more accurate than the standard 6 microphone arrangement.
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