Temperature Effects in Acoustic Resonators
نویسندگان
چکیده
منابع مشابه
2. Numerical methods for nonlinear acoustic resonators
For the study of pressure waves in an oscillating acoustic resonator, one has to solve the compressible NavierStokes equations. The geometry of the resonator strongly influences its resonance frequencies and the nonlinear standing pressure waveform generated within the cavity. Studying the acoustic wave by real physical experiments would be expensive due to the cost of constructing different re...
متن کاملHigh Frequency Thin Film Acoustic Ferroelectric Resonators
Both ZnO and PZT Thin Film Bulk Acoustic Resonator filters were fabricated, tested and modeled in this study. The development of an accurate Mason model allows the effect of particular parasitic components on the microwave s-parameters in the region of the series and parallel resonances to be identified. The parasitic components that limit the performance of our ZnO and PbZr0.3Ti0.7O3 Thin Film...
متن کاملAcoustofluidics 12: Biocompatibility and cell viability in microfluidic acoustic resonators.
Manipulation of biological cells by acoustic radiation forces is often motivated by its improved biocompatibility relative to alternative available methods. On the other hand, it is well known that acoustic exposure is capable of causing damage to tissue or cells, primarily due to heating or cavitation effects. Therefore, it is important to define safety guidelines for the design and operation ...
متن کاملPhonon-Electron Interactions in Piezoelectric Semiconductor Bulk Acoustic Wave Resonators
This work presents the first comprehensive investigation of phonon-electron interactions in bulk acoustic standing wave (BAW) resonators made from piezoelectric semiconductor (PS) materials. We show that these interactions constitute a significant energy loss mechanism and can set practical loss limits lower than anharmonic phonon scattering limits or thermoelastic damping limits. Secondly, we ...
متن کاملAcoustic Force Distribution in Resonators for Ultrasonic Particle Separation
The effectiveness of particle -liquid separation by ultrasonic radiation forces depends on the acoustic energy density distribution in the standing-wave field. The energy distribution in an ultrasonic particle-separation device was analyzed to assist continued optimization and design efforts. Measurements of the energy-density distribution in the liquid using a microscope-based imaging system w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Polytechnica
سال: 2002
ISSN: 1805-2363,1210-2709
DOI: 10.14311/364