Results 21 to 30 of about 456,582 (333)
Total focussing method for volumetric imaging in immersion non destructive evaluation [PDF]
, 2007 This paper describes the use of a 550 (25x22) element 2MHz 2D piezoelectric composite array in immersion mode to image an aluminum test block containing a collection of artificial defects.
Drinkwater, B. +6 more
core +1 more source
Parallel double-plate capacitive proximity sensor modelling based on effective theory
AIP Advances, 2014 A semi-analytical model for a double-plate capacitive proximity sensor is presented according to the effective theory. Three physical models are established to derive the final equation of the sensor. Measured data are used to determine the coefficients.
Nan Li, Haiye Zhu, Wenyu Wang, Yu Gong
doaj +1 more source
Torsional mode ultrasonic helical waveguide sensor for re-configurable temperature measurement
AIP Advances, 2016 This paper introduces an ultrasonic torsional mode based technique, configured in the form of a helical “spring-like” waveguide, for multi-level temperature measurement.
Suresh Periyannan +2 more
doaj +1 more source
Pulse-Echo Harmonic Generation Measurements for Non-destructive Evaluation [PDF]
, 2013 Ultrasonic harmonic generation measurements have shown great potential for detecting nonlinear changes in various materials. Despite this, the practical implementation of the technique in non-destructive evaluation (NDE) has typically been limited to the
Best, S. R. +2 more
core +2 more sources
Multiple temperature sensors embedded in an ultrasonic “spiral-like” waveguide
AIP Advances, 2017 This paper studies the propagation of ultrasound in spiral waveguides, towards distributed temperature measurements on a plane. Finite Element (FE) approach was used for understanding the velocity behaviour and consequently designing the spiral waveguide.
Suresh Periyannan +2 more
doaj +1 more source
Non-destructive evaluation of cement-based materials from pressure-stimulated electrical emission - Preliminary results [PDF]
, 2011 This is the post-print version of the final paper published in Construction and Building Materials. The published article is available from the link below.
A. Kyriazopoulos +35 more
core +1 more source
Non-Destructive Testing for Building Evaluation
Buildings, 2022 As of recent, non-destructive testing (NDT) has been used more frequently to evaluate and assess the condition of buildings [...]
Łukasz Sadowski
doaj +1 more source
npj Materials Degradation, 2023 We present an ultrasonic research technique that can carry out in situ, direct monitoring of the 3D morphologies of corrosion substrates. The technique has a customizable lateral resolution, an ultra-high axial resolution of 100 nm, and an experimentally
Yunda Chen +4 more
doaj +1 more source
Sensors, 2019 In different disciplines of science, the knowledge of the resulting pressures in the subsoil can help to understand physical phenomena of mass exchange between the atmosphere and the terrain. The measurement of lower differential pressures is complicated
Isabel Sicilia +5 more
doaj +1 more source
STUDIES OF ACOUSTIC EMISSION SIGNATURES FOR QUALITY ASSURANCE OF SS 316L WELDED SAMPLES UNDER DYNAMIC LOAD CONDITIONS [PDF]
Journal of Engineering Science and Technology, 2016 Acoustic Emission (AE) signatures of various weld defects of stainless steel 316L nuclear grade weld material are investigated. The samples are fabricated by Tungsten Inert Gas (TIG) Welding Method have final dimension of 140 mm x 15 mm x 10 mm.
S. V. RANGANAYAKULU +3 more
doaj