Title :
Performance analysis of piezoelectric composite plates with consideration of the internal losses
Author :
Ih, Jong Hyun ; Lee, Byung Ho
Author_Institution :
Electron. & Telecommon. Res. Inst., Daejeon, Chungnam, South Korea
Abstract :
The performance of a 2.3 MHz composite transducer with 1-3 connectivity is analyzed using the transmission line model. The basic transducer parameters, including the attenuation coefficient, are determined from the electrical impedance in the vicinity of the resonance. Using these parameters, the effects of internal losses on round trip insertion loss (RTIL) are investigated. Also, electrical impedance, pulse-echo, and RTIL response are calculated and found to be in good agreement with the experimental data.<>
Keywords :
piezoelectric transducers; 2.3 MHz; attenuation coefficient; electrical impedance; internal losses; piezoelectric composite plates; pulse-echo; round trip insertion loss; transducer; transmission line model; Acoustic pulses; Acoustic transducers; Attenuation; Distributed parameter circuits; Impedance; Performance analysis; Propagation losses; Resonance; Transmission line matrix methods; Transmission line theory;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
