Ultrasonic signal acquisition system for TOFD imaging
IOP Conference Series: Materials Science and Engineering, 2020 Abstract This article describes the development of an application to capture and process ultrasonic signals that will lead to the formation of flight time diffraction images, TOFD. In this way the theoretical basis of operation of this technique is presented establishing concepts such as type A and type D scanning.
J Casagua, J Rodríguez, D Segura
openaire +1 more source
Research progress in ultrasonic testing for friction stir welding of aluminum alloy
Cailiao gongcheng, 2022 The defects in friction stir welding (FSW) of aluminum alloy, e.g., tunnel defect, lack of penetration (LOP) and kissing bond, are with complex shape and narrow gap by inappropriate welding parameters.
JIN Shijie, TIAN Xin, LIN Li
doaj +1 more source
Laser Ultrasound Inspection Based on Wavelet Transform and Data Clustering for Defect Estimation in Metallic Samples [PDF]
, 2019 Laser-generated ultrasound is a modern non-destructive testing technique. It has been investigated over recent years as an alternative to classical ultrasonic methods, mainly in industrial maintenance and quality control procedures.
Cojocaru, Crina +4 more
core +2 more sources
A review of miniaturised Non-Destructive Testing technologies for in-situ inspections [PDF]
, 2018 Non-destructive testing (NDT) techniques have become attractive trends of product manufacturing, installation and post-maintenance in the aerospace, automotive and manufacturing industry, because of its benefits such as cost saving, easy to use and high ...
Addepalli +12 more
core +1 more source
Fractional fourier transforms of hypercomplex signals [PDF]
, 2012 An overview is given to a new approach for obtaining generalized Fourier transforms in the context of hypercomplex analysis (or Clifford analysis). These transforms are applicable to higher-dimensional signals with several components and are different ...
De Bie, Hendrik, De Schepper, Nele
core +1 more source
Materials & Design, 2021 Automated in-process Non-Destructive Testing (NDT) systems are rapidly gaining traction within the manufacturing industry as they reduce manufacturing time and costs.
Ehsan Mohseni +12 more
doaj +1 more source
Detecting contact acoustic nonlinearity in TOFD measurements via quasistatic loading
Materials Research Proceedings, 2023 . In this paper, we propose a novel method to detect and quantify contact acoustic nonlinearity using conventional time of flight diffraction (TOFD) non-destructive testing (NDT) equipment, with the aim to improve the sensitivity and robustness of TOFD ...
A. Carcione
semanticscholar +1 more source
Cracked Rotors, A Survey on Static and Dynamic Behaviour Including Modelling and Diagnosis [PDF]
, 2009 Cracks can develop in rotating shafts and can propagate to relevant depths without affecting consistently the normal operating conditions of the shaft.
E. Tanzi, N. Bachschmid, P. Pennacchi
core +1 more source
Automated Detection of Pipe Bursts and other Events in Water Distribution Systems [PDF]
, 2013 Copyright 2012 by the American Society of Civil EngineersThis paper presents a new methodology for the automated near real-time detection of pipe bursts and other events which induce similar abnormal pressure/flow variations (e.g., unauthorised ...
Bishop C. M. +10 more
core +1 more source
ENIQ TGQ Technical Document - Practical Examples for Manufacturing of Test Pieces for Inspection Qualification [PDF]
, 2011 This ENIQ TGQ Technical Document is a companion of Recommended Practice 5 (Issue 2). RP5 identifies issues to be considered when designing test-pieces for use in experimental inspection qualification trials and provides recommendations for conducting ...
GANDOSSI Luca
core +1 more source