Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8129835 | Ultrasonics | 2018 | 9 Pages |
Abstract
Experiments were conducted on a polyurethane resin sample and two samples of different wood species using two 500â¯kHz-transducers. The relative errors in the measurement of thickness compared with the results of caliper measurements ranged from 0.13% minimum for the wavelet-coded excitation method to 2.3% maximum for the chirp-coded excitation method. For the relative errors in the measurement of ultrasonic wave velocity, the coded excitation methods showed differences ranging from 0.24% minimum for the wavelet-coded excitation method to 2.62% maximum for the chirp-coded excitation method. Methods based on coded excitation algorithms thus enable accurate measurements of thickness and ultrasonic wave velocity in samples of wood species.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Acoustics and Ultrasonics
Authors
Philippe Lasaygues, Andres Arciniegas, Luis Espinosa, Flavio Prieto, Loïc Brancheriau,