Paper Info
Title
Numerical and Experimental Evaluation of High-Frequency Unfocused Polymer Transducer Arrays.
Abstract
High-frequency unfocused polymer array transducers are developed using an adhesive-free layer-by-layer assembly method. The current paper focuses on experimental and numerical methods for measuring the acoustic performance of these types of array transducers. Two different types of numerical approaches were used to simulate the transducer performance, including a finite element method (FEM) study of the transducer response done in COMSOL 5.2a Multiphysics, and modeling of the excited ultrasonic pressure fields using the open source software k-Wave 1.2.1. The experimental characterization also involves two methods (narrow and broadband pulses), which are measurements of the acoustic reflections picked up by the transducer elements. Later on, measurements were undertaken of the ultrasonic pressure fields in a water-scanning tank using a hydrophone system. Ultrasonic pressure field measurements were visualized at various distances from the transducer surface and compared with the numerical findings.
Year
DOI
Venue
2018
10.3390/s18061908
SENSORS
Keywords
Field
DocType
polyvinylidenefluoride,needle hydrophone,acoustic pressure field,high-frequency P(VDF-TrFE) transducers,polyethyleneimine,k-Wave
Transducer,Ultrasonic sensor,Polymer,Multiphysics,Electronic engineering,Broadband,Finite element method,Hydrophone,Engineering,Acoustics,Numerical analysis
Journal
Volume
Issue
Citations 
18
6.0
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Anowarul Habib100.68
Sanat Wagle200.34
Decharat Adit310.75
Frank Melandso401.35