Next Article in Journal
Enhancing the Discrimination Ability of a Gas Sensor Array Based on a Novel Feature Selection and Fusion Framework
Next Article in Special Issue
A Correction Approach for the Inclined Array of Hydrophones in Synthetic Aperture Sonar
Previous Article in Journal
Strain Transfer for Optimal Performance of Sensing Sheet
Previous Article in Special Issue
Holey-Cavity-Based Compressive Sensing for Ultrasound Imaging
Article Menu
Issue 6 (June) cover image

Export Article

Open AccessArticle
Sensors 2018, 18(6), 1908; https://doi.org/10.3390/s18061908

Numerical and Experimental Evaluation of High-Frequency Unfocused Polymer Transducer Arrays

Department of Physics and Technology, UiT The Arctic University of Norway, 9037 Tromsø, Norway
*
Author to whom correspondence should be addressed.
Received: 28 March 2018 / Revised: 24 May 2018 / Accepted: 8 June 2018 / Published: 12 June 2018
(This article belongs to the Special Issue Ultrasonic Sensors 2018)
Full-Text   |   PDF [1980 KB, uploaded 12 June 2018]   |  

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. View Full-Text
Keywords: polyvinylidenefluoride; needle hydrophone; acoustic pressure field; high-frequency P(VDF-TrFE) transducers; polyethyleneimine; k-Wave polyvinylidenefluoride; needle hydrophone; acoustic pressure field; high-frequency P(VDF-TrFE) transducers; polyethyleneimine; k-Wave
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Habib, A.; Wagle, S.; Decharat, A.; Melandsø, F. Numerical and Experimental Evaluation of High-Frequency Unfocused Polymer Transducer Arrays. Sensors 2018, 18, 1908.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top