title: A theoretical analysis of a piezoelectric ultrasound device with an active matching layer.
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.
authors: Department of Mathematics, University of Strathclyde, Livingstone Tower, 26 Richmond Street, Glasgow G1 1XH, UK. ajm@maths.strath.ac.uk
authors: Anthony J
authors: AJ
authors: Mulholland
authors: Richard L
authors: RL
authors: O'Leary
authors: Nishal
authors: N
authors: Ramadas
authors: Agnes
authors: A
authors: Parr
authors: Alexandre
authors: A
authors: Troge
authors: Richard A
authors: RA
authors: Pethrick
authors: Gordon
authors: G
authors: Hayward
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004563:Electrochemistry / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008567:Membranes, Artificial; D008962:Models, Theoretical; D014159:Transducers; D014463:Ultrasonography / Q000295:instrumentation* / Q000379:methods
chemical_list: D008567:Membranes, Artificial