bullet Sensors & Transducers Journal

    (ISSN: 2306-8515, e-ISSN 1726-5479)


   About this Journal

   Information for Authors

   Editorial Board

   Editorial Calendar

   Current Issue

   Browse Journal

S&T journal's cover

Submit Press Release

Submit White Paper

25 Top Downloaded Articles (2007-2012)


Contact Us





Vol. 208, Issue 1, January 2017, pp. 51-58




Evaluating Image Precision of Acoustical Imaging Diffraction
by Focused Ultrasound Beam

1a Jinwen DING, 2 Dewen ZHENG, 3 Han DING, 4 Kang LI, 1b Qichen MA, 1c Guochao HE, 1a Jingjing LIU and 1a Junhua CHEN

1a CAS Key Laboratory of Materials for Energy Conversion; Department of Materials Science and Engineering; 1b School of the Gifted Young;
1c School of Computer Science and Technology, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
2 Research Institute of Petroleum Exploration and Development, Donghuan Road, Langfang, 065006, China
3 School of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, 6 Xuefu Middle Road, Xi’an, 710021, China
4 Anhui Academy of Coal Science, 81 Xuancheng Road, Hefei, 230001, China
E-mail: cjh@ustc.edu.cn, zdw69@petrochina.com.cn, jwding@ustc.edu.cn


Received: 30 December 2016 /Accepted: 24 January 2017 /Published: 31 January 2017

Digital Sensors and Sensor Sysstems


Abstract: The paper concisely reveals an acoustic behavior - acoustic diffraction (scattering) phenomena, which arises between a spherical cavity of acoustic lens and the microstructure of an object in immersion. As the result, this phenomena cause some negative influence on acoustical imaging precision. As a certain condition is satisfied, the outline of microstructure in acoustic images become blurred, the image precision is somewhat corroded. The paper introduces a brief evaluation approach to this acoustic interaction, and provides some typical characteristics of this acoustic interaction in two-dimensional (2D) and three-dimensional (3D) acoustical images. The paper suggests the researcher should take into account this interaction behavior - diffraction, to avoid any misrepresentation as investigating microstructures and imaging characterization, promoting the accuracy for materials characterization through the acoustical images by scanning acoustic microscopy technology (SAM), in the application field of non-destructive Testing / Evaluation (NDT/E).


Keywords: Transducer, Acoustic lens, Scattering and diffraction, Time-of-flight (TOF), Signal aberration, Acoustical imaging, Scanning acoustic microscopy, Non-destructive testing / evaluation (NDT/E).


Acrobat reader logo Click <here> or title of paper to download the full pages article in pdf format



This work is licensed under a Creative Commons 4.0 International License


 Creative Commons License





1999 - 2017 Copyright ©, International Frequency Sensor Association (IFSA) Publishing, S.L. All Rights Reserved.

Home - News - Links - Archives - Tools - Voltage-to-Frequency Converters - Standardization - Patents - Marketplace - Projects - Wish List - e-Shop - Sensor Jobs - Membership - Videos - Publishing - Site Map - Subscribe - Search

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Submit Press Release - Submit White Paper - Testimonies - Twitter - Facebook - LinkedIn