Piezoceramic Transducers Selection Method for High Power Ultrasonic Devices
P. Kluk and A. Milewski
Tele and Radio Research Institute, Ratuszowa 11, 03-450 Warszawa, Poland
Received: May 12, 2014
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A universal method for selecting piezoceramic transducers used in high power ultrasonic devices such as ultrasonic welding and cutting systems has been presented. The key element of such systems is a high power ultrasonic sandwich transducer consisting of a stack of piezoceramic transducers mounted between two masses. Because of relatively large dispersion of piezoceramic transducer parameters between production lots, they must be selected in order to obtain a high quality and long-life sandwich transducer. Presented selection method consists of three stages. First, the parametric identification of the Butterworth-Van Dyke equivalent circuit model is performed based on piezoceramic transducer electrical impedance measurements. Next, the electrical impedance frequency samples are estimated using the identified Butterworth-Van Dyke model. Finally, the k-means clustering algorithm is used to select the best fitted piezoceramic transducer sets.

DOI: 10.12693/APhysPolA.127.719
PACS numbers: 43.35.+d, 43.35.-c, 43.35.Zc, 43.38.Fx, 43.38.+n, 43.38.-p