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 Experiment Videos

Detecting small flaws near the interface in pulse-echo.

C Fritsch1, A Veca

  • 1Instituto de Automática Industrial (CSIC), La Poveda (Arganda), 28500 Madrid, Spain. carlos@iai.csic.es

Ultrasonics
|March 30, 2004
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Glyphosate, AMPA and glufosinate in soils and earthworms in a French arable landscape.

Chemosphere·2022
Same author

Genome-wide surveillance of transcription errors in response to genotoxic stress.

Proceedings of the National Academy of Sciences of the United States of America·2021
Same author

Patients with sciatica still experience pain and disability 5 years after surgery: A systematic review with meta-analysis of cohort studies.

European journal of pain (London, England)·2016
Same author

Tracking pan-continental trends in environmental contamination using sentinel raptors-what types of samples should we use?

Ecotoxicology (London, England)·2016
Same author

Fermentation performance of lactic acid bacteria in different lupin substrates-influence and degradation ability of antinutritives and secondary plant metabolites.

Journal of applied microbiology·2015
Same author

An overview of existing raptor contaminant monitoring activities in Europe.

Environment international·2014
Same journal

Uncovering the mechanism of ultrasonic cavitation-induced deagglomeration of 7-ADCA agglomerates.

Ultrasonics·2026
Same journal

Identifiability limits in ultrasonic microstructure characterisation using attenuation and velocity features: Canonical analysis and stochastic surrogate modelling.

Ultrasonics·2026
Same journal

A methodology to estimate the ultrasonic p-wave velocity of coarse aggregates in concrete.

Ultrasonics·2026
Same journal

Ultrasonic guided wave damage imaging using the time difference coefficient between direct and scattered waves.

Ultrasonics·2026
Same journal

Axial acoustic radiation force on a sphere embedded in a gel phantom within a focused ultrasound field: simulation and measurement.

Ultrasonics·2026
Same journal

Quantitative ultrasound scatteromics for characterization of reconstructed neopharyngeal tissue: Assessment of postoperative speech outcome after total laryngopharyngectomy.

Ultrasonics·2026
See all related articles

This study introduces a novel time-domain phase analysis for non-destructive testing (NDT). The method effectively detects flaws near surfaces, even with saturated signals, improving NDT accuracy.

Area of Science:

  • Non-destructive testing (NDT)
  • Ultrasonic testing
  • Signal processing

Background:

  • Flaw detection near interfaces in pulse-echo NDT is challenging due to strong interface echoes interfering with weak flaw signals.
  • Existing methods like deconvolution and Hilbert transform require signal linearity, limiting system dynamic range and flaw detection sensitivity.
  • High gain needed for small flaw detection often leads to signal saturation, further complicating analysis.

Purpose of the Study:

  • To present a new signal processing technique for improved flaw detection near interface surfaces in pulse-echo NDT.
  • To overcome limitations of conventional methods, particularly concerning signal linearity and dynamic range.
  • To enable detection of small flaws in close proximity to the interface, even with saturated signals.

Main Methods:

Related Experiment Videos

  • A novel time-domain phase analysis of received ultrasonic signals is proposed.
  • This method analyzes signal phase in the time domain, offering an alternative to frequency-domain or transform-based techniques.
  • The approach is designed to be robust against signal saturation, a common issue in high-gain NDT.

Main Results:

  • The proposed method successfully detects flaws within a fraction of a wavelength from the interface surface.
  • Experimental verification confirms effectiveness even with narrow-band transducers.
  • The technique performs well with saturated signals, a significant advantage over conventional approaches.

Conclusions:

  • Time-domain phase analysis offers a viable alternative for NDT flaw detection near interfaces.
  • The method enhances sensitivity and dynamic range, particularly in scenarios with strong interface echoes and saturated signals.
  • Its potential for hardware implementation facilitates real-time processing in various NDT applications.