Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Frequency-Domain Interpretation of PD Control

Frequency-Domain Interpretation of PD Control

Proportional-Derivative (PD) controllers are widely used in fan control systems to improve stability and performance. A fan control system can be effectively represented using a Bode plot to illustrate the impact of a PD controller through its transfer function. The Bode plot visually conveys how PD control modifies the fan's response across various frequencies, providing a frequency domain interpretation of the controller's behavior.
The proportional control gain, combined with the...

Effective Value of a Periodic Waveform

Effective Value of a Periodic Waveform

The concept of effective value, the root mean square (RMS) value, is crucial in understanding electrical circuits and power delivery. This idea emerges from the necessity to measure the effectiveness of a voltage or current source in supplying power to a resistive load.
The effective value of a periodic current represents the direct current (DC) that conveys the same average power to a resistor as the periodic current itself. This concept is crucial when assessing AC circuits. To determine the...

You might also read

Related Articles

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

Sort by

Same author

Experimental and Numerical Investigation of the Use of Ultrasonic Waves to Assist Laser Welding.

Materials (Basel, Switzerland)·2024

Same author

An Interactive Web-Based Platform for Support Generation and Optimisation for Metal Laser Powder Bed Fusion.

Materials (Basel, Switzerland)·2024

Same author

Support Structures Optimisation for High-Quality Metal Additive Manufacturing with Laser Powder Bed Fusion: A Numerical Simulation Study.

Materials (Basel, Switzerland)·2023

Same author

Analytical Simulation of the Microbubble Collapsing in a Welding Fusion Pool.

Materials (Basel, Switzerland)·2023

Same author

Detection and Analysis of Corrosion and Contact Resistance Faults of TiN and CrN Coatings on 410 Stainless Steel as Bipolar Plates in PEM Fuel Cells.

Sensors (Basel, Switzerland)·2022

Same author

Street Food in Maputo, Mozambique: The Coexistence of Minimally Processed and Ultra-Processed Foods in a Country under Nutrition Transition.

Foods (Basel, Switzerland)·2021

Search research articles

Related Experiment Video

Updated: Mar 2, 2026

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Published on: January 31, 2025

Wave Mode Discrimination of Coded Ultrasonic Guided Waves Using Two-Dimensional Compressed Pulse Analysis.

Sergio Malo, Sina Fateri, Makis Livadas

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

|May 16, 2017

Summary

This study introduces a novel 2-D compressed pulse analysis to enhance ultrasonic guided waves testing. The technique improves signal-to-noise ratio and resolution, enabling better defect detection in complex industrial applications.

More Related Videos

Ultrasound-based Pulse Wave Velocity Evaluation in Mice

Ultrasound-based Pulse Wave Velocity Evaluation in Mice

Published on: February 14, 2017

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Published on: May 11, 2014

Related Experiment Videos

Last Updated: Mar 2, 2026

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Published on: January 31, 2025

Ultrasound-based Pulse Wave Velocity Evaluation in Mice

Ultrasound-based Pulse Wave Velocity Evaluation in Mice

Published on: February 14, 2017

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Published on: May 11, 2014

Area of Science:

Non-destructive testing
Materials science
Signal processing

Background:

Ultrasonic guided waves testing is widely used but challenged by dispersion and multimode behavior.
Accurate defect detection in complex structures requires improved signal analysis.
Existing methods struggle with distinguishing and analyzing multiple wave modes simultaneously.

Purpose of the Study:

To present a novel 2-D compressed pulse analysis for ultrasonic guided waves.
To enhance signal-to-noise ratio (SNR) and temporal-spatial resolution.
To improve the discrimination and analysis of different wave modes.

Main Methods:

Development of a 2-D compressed pulse analysis combining pulse compression and dispersion compensation.
Implementation of an iterative algorithm with adaptive peak detection for automatic wave mode discrimination.
Study of Barker-coded and chirp waveforms in multimodal scenarios (longitudinal and flexural waves).

Main Results:

Significant improvements in SNR and temporal resolution demonstrated.
Effective discrimination of different wave modes achieved.
Accurate calculation of propagation distance for various wave modes validated.

Conclusions:

The 2-D compressed pulse analysis offers enhanced performance for ultrasonic guided waves testing.
The developed iterative algorithm enables automatic wave mode discrimination for practical applications.
This technique shows promise for advanced non-destructive evaluation and in situ monitoring.