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A theoretical analysis of a piezoelectric ultrasound device with an active matching layer |
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| Authors: | Mulholland Anthony J O'Leary Richard L Ramadas Nishal Parr Agnes Troge Alexandre Pethrick Richard A Hayward Gordon |
| Institution: | aDepartment of Mathematics, University of Strathclyde, Livingstone Tower, 26 Richmond Street, Glasgow G1 1XH, UK bThe Centre for Ultrasonic Engineering, Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow G1 1XW, UK cDepartment of Pure and Applied Chemistry, University of Strathclyde, Glasgow G1 1XL, UK |
| Abstract: | This paper investigates the use of magnetically active materials in the matching layer of a piezoelectric transducer. This then allows the performance of the device to be dynamically altered by applying an external field. The effect that this new matching layer has on the performance of a typical device is theoretically investigated here. It transpires that the additional flexibility of an active matching layer can be used to maintain the efficiency of the device as the external load is varied. |
| Keywords: | Magnetorheological Ultrasonic transducer Matching layer Modelling |
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