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Related Experiment Video

Updated: May 12, 2026

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface

Published on: May 8, 2021

New method for real-time dynamic focusing through interfaces.

Jorge F Cruza¹, Jorge Camacho, Luis Serrano-Iribarnegaray

¹UMEDIA group, Spanish National Research Council (CSIC), Madrid, Spain.

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

|April 4, 2013

Summary

This summary is machine-generated.

This study introduces a new method for dynamic focusing in nondestructive evaluation (NDE) using a virtual array to overcome refraction issues. The technique enables real-time focusing with simple hardware for various array geometries and interfaces.

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Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

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Last Updated: May 12, 2026

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface

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Published on: May 8, 2021

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

Published on: September 9, 2022

Area of Science:

Nondestructive Evaluation (NDE)
Ultrasonic Testing
Phased Array Ultrasonics

Background:

Coupling media (wedges) in NDE complicate focal law computation due to interface refraction.
Existing techniques lack hardware solutions for dynamic focusing under these conditions.

Purpose of the Study:

To develop a novel technique for real-time dynamic focusing in NDE with wedges.
To address the challenges posed by refraction at the probe-object interface.
To enable dynamic focusing for arbitrary array geometries and interface shapes.

Main Methods:

A two-step procedure involving the creation of a virtual array in a single medium.
Development of simple hardware for real-time dynamic focusing.
Theoretical analysis and evaluation of timing errors in approximations.

Main Results:

The virtual array approach effectively compensates for refraction effects.
The proposed hardware allows dynamic focusing in real-time for complex geometries.
Approximation errors were found to be acceptably low for practical applications.

Conclusions:

The new technique offers a viable solution for dynamic focusing in NDE with wedges.
It is applicable to various array configurations and interface irregularities.
The method shows promise for NDE and certain medical imaging applications.