Cross-talk paths in array transducers

Cross-talk is an important component of array transducer performance. It directly affects low level ring down, and limits aperture and steering angles. This paper describes a method of analysis which helps to sort out the sources and paths of acoustic cross-talk to allow improved array design. A lin...

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Bibliographic Details
Published in1995 IEEE Ultrasonics Symposium. Proceedings. An International Symposium Vol. 2; pp. 1279 - 1282 vol.2
Main Authors Guess, J.F., Oakley, C.G., Douglas, S.J., Morgan, R.D.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1995
Subjects
Acoustic pulses
Acoustic testing
Attenuation
Bandwidth
Ceramics
Couplings
Frequency response
Impedance
Ultrasonic transducer arrays
Vibrations
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Summary:Cross-talk is an important component of array transducer performance. It directly affects low level ring down, and limits aperture and steering angles. This paper describes a method of analysis which helps to sort out the sources and paths of acoustic cross-talk to allow improved array design. A linear array was built up in a step by step fashion with cross-talk measured at each step. Standard gain-phase testing and a novel cross-talk analysis method using time waveforms were both used to describe the cross-talk. Results demonstrate the contributions of cross-talk through the backing and through the kerf filler at each level of construction.
ISBN:9780780329409
0780329406
ISSN:1051-0117
DOI:10.1109/ULTSYM.1995.495790