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Choice of spatial resolution measurement methods to implement: considerations under a “New Laboratory”-scenario for imaging optical testing and research

Author: Theron, Bertus ; El-Desouki, M ; Aljekhedab, FMR ; Alayed, MSI ; Alsawad, MSD Date: Apr 2013 A key imaging quality metric for an optical system (e.g. a camera or surveillance device) is its resolution. Methods to measure this, range from visual observation methods on resolution target charts, through more rigorous characterization, ... Read more
Comparison between SAFE forced response and Abaqus/Explicit solutions of a rail excited at a cut-frequency

Author: Long, Craig S ; Ramatlo, Dineo AM ; Loveday, Philip W Date: Sep 2018 In this paper, we present a comparison between two different methods for modelling the response of an elastic waveguide to a point force excitation. Read more
Numerical verification of an efficient coupled SAFE-3D FE analysis for guided wave ultrasound excitation

Author: Long, Craig S ; Loveday, Philip W ; Ramatlo, Dineo AM ; Andhavarapu, EV Date: Sep 2018 Numerical verification of a method to simulate piezoelectric transducers exciting infinite elastic waveguides is presented. The method, referred to as SAFE-3D, combines a 3D finite element (FE) model of a transducer with a 2D semi-analytical ... Read more

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Browsing by Subject "Cut-off frequency"

Browsing by Subject "Cut-off frequency"

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