Applied Physics Letters · 1976 · 21 citations · 3 references
EngineeringElectrical EngineeringAcousticsInstrumentationMicroelectromechanical SystemsElectrode Array DesignPiezoelectric ActuatorsPiezoelectric MaterialsTransducer PrinciplesTransducer TechnologyVibration IsolationArray DesignBandwidthLinear Array TransducersMicroelectromechanical Systems TransducersPiezoelectric Plate ElementsPiezoelectric TransducersTransducer Array DesignTransducer Design
A transducer array consisting of a large number of separated sets of electrodes plated on a single piezoelectric plate of uniform thickness is described. Each set of electrodes is made to act essentially independently by placing them sufficiently far apart and employing an essentially trapped energy mode. Experimental results obtained with a linear array on PZT-7A show that the isolation is very good over a bandwidth of about 14%, close to the calculated bandwidth of 12.8%.
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