Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Spherical and Cylindrical Capacitor01:26

Spherical and Cylindrical Capacitor

6.8K
A spherical capacitor consists of two concentric conducting spherical shells of radii R1 (inner shell) and R2 (outer shell). The shells have  equal and opposite charges of +Q and −Q, respectively. For an isolated conducting spherical capacitor, the radius of the outer shell can be considered to be infinite.
Conventionally, considering the  symmetry, the electric field between the concentric shells of a spherical capacitor is directed radially outward. The magnitude of the field,...
6.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Advancing Ultrasonic Imaging and Sensing for Automated Nondestructive Testing.

Sensors (Basel, Switzerland)·2026
Same author

Fast wavenumber-domain reconstruction for 3-D plane wave imaging with row-column addressed arrays.

Ultrasonics·2026
Same author

Genomic Analysis of the Trehalose-6-Phosphate Synthase Family Involved in Trehalose Biosynthesis and Drought Response in <i>Morus alba</i>.

Current issues in molecular biology·2026
Same author

Extracellular vesicles derived from senescent hepatocytes drive pan-cancer metastasis in aging.

Nature aging·2026
Same author

Investigation of fluoride and turbidity removal from coal mine water by combined micro-flocculation and membrane filtration: Lab to pilot scale.

Journal of environmental sciences (China)·2026
Same author

A Multi-Head Attention Network for Fast Prediction of Ultrasonic Guided Wave Dispersion Under Coupled Temperature and Stress.

Sensors (Basel, Switzerland)·2026

Related Experiment Video

Updated: Feb 22, 2026

Determining 3D Flow Fields via Multi-camera Light Field Imaging
14:25

Determining 3D Flow Fields via Multi-camera Light Field Imaging

Published on: March 6, 2013

17.2K

Frequency domain synthetic aperture focusing technique for variable-diameter cylindrical components.

Haoran Jin1, Eryong Wu1, Ye Han1

  • 1State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, 38 Zheda Road, Westlake District, Hangzhou 310027, China.

The Journal of the Acoustical Society of America
|October 2, 2017
PubMed
Summary

This study introduces a new frequency-domain synthetic aperture focusing technique (SAFT) for ultrasonic non-destructive testing of variable-diameter cylinders. The method enhances defect imaging resolution in complex geometries, improving quality control for components like pipes and axles.

More Related Videos

Fabrication and Operation of Acoustofluidic Devices Supporting Bulk Acoustic Standing Waves for Sheathless Focusing of Particles
10:14

Fabrication and Operation of Acoustofluidic Devices Supporting Bulk Acoustic Standing Waves for Sheathless Focusing of Particles

Published on: March 6, 2016

13.5K
Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
06:25

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Published on: February 12, 2014

8.9K

Related Experiment Videos

Last Updated: Feb 22, 2026

Determining 3D Flow Fields via Multi-camera Light Field Imaging
14:25

Determining 3D Flow Fields via Multi-camera Light Field Imaging

Published on: March 6, 2013

17.2K
Fabrication and Operation of Acoustofluidic Devices Supporting Bulk Acoustic Standing Waves for Sheathless Focusing of Particles
10:14

Fabrication and Operation of Acoustofluidic Devices Supporting Bulk Acoustic Standing Waves for Sheathless Focusing of Particles

Published on: March 6, 2016

13.5K
Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
06:25

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Published on: February 12, 2014

8.9K

Area of Science:

  • Non-destructive testing
  • Ultrasonic imaging
  • Acoustic wave propagation

Background:

  • Ultrasonic non-destructive testing (UNDT) is crucial for assessing cylindrical components like pipes and axles.
  • Acoustic beam diffraction in UNDT can interfere with defect imaging, especially at greater depths.
  • Conventional synthetic aperture focusing techniques (SAFT) are limited in imaging complex geometries like variable-diameter cylinders.

Purpose of the Study:

  • To develop an advanced SAFT algorithm for precise defect dimension evaluation in variable-diameter cylindrical components.
  • To overcome the limitations of conventional SAFT in complex geometries.
  • To enhance image resolution and reduce interference from acoustic wave diffraction.

Main Methods:

  • A frequency-domain SAFT algorithm is proposed, utilizing acoustic field extrapolation.
  • The method modifies cylindrical phase shift migration using split-step Fourier transformation.
  • A specific imaging condition is employed for high-resolution ultrasound image reconstruction.

Main Results:

  • The proposed frequency-domain SAFT achieves high resolution and low side lobes for flat transducers.
  • Experimental results demonstrate effective defect imaging in variable-diameter cylinders.
  • The angular resolution is shown to be dependent on transducer diameter (D) and scanning radius (R), approximating D/(2R).

Conclusions:

  • The developed frequency-domain SAFT provides a robust solution for ultrasonic imaging of defects in variable-diameter cylindrical components.
  • This technique significantly improves the precision of defect dimension evaluation.
  • The method offers enhanced image quality crucial for quality assurance in industrial applications.