detectabilitycompositesDetectability of damage using Lamb waves depends on many factors such as size and severity of damage, attenuation of the wave and distance to the transducers. This paper presents a detectability model for pitch-catch sensors configuration for structural health monitoring (SHM) ...
Firstly, the configuration of the pair of ring transducers was presented. Then, the efficiency of the d15 and d24 modes based piezoelectric ring array in T(0,1) wave generation and reception was compared. After that, full-scale field experiments were carried out in a wide frequency range ...
A commercial UPC NDT device (hereafter called "UPC device"), which is based on the ultrasonic shear-wave test method using dry-point-contact transmitting and receiving transducers in a "pitch-catch" configuration, was used to map internal defects of the validation RC slab. The recorded data ...
In this paper these difficulties have been overcome by the use of an oblique pitch-catch transducer configuration. The parameters in such a configuration are wedge angles for the contact transducers, center frequencies, and the spacing of the transducers in the pitch-catch configuration. These ...
Science China Technological Sciences - Nonlinear ultrasonic imaging techniques in pulse-echo configuration have recently shown their potential to allow the effective separation of nonlinear and...doi:10.1007/s11431-020-1902-7JingWei CHENGNational Safety Engineering Technology Research Centre for Pressure ...