@article{Aleksandrovas_Rodriguez_Svilainis_Angel de la Casa_Salazar_2016, title={Ultrasound-Based Density Estimation of Composites Using Water-Air Interface}, volume={22}, url={https://eejournal.ktu.lt/index.php/elt/article/view/17219}, DOI={10.5755/j01.eie.22.6.17219}, abstractNote={<p class="Abstract">In this paper we present a new method to obtain the density of solid composites using ultrasound. The method exploits the relation between density and acoustic impedance and only requires the measurement of a reference signal form the interface water-air. Once made in a controlled environment, it can be used for any material, and does not require any additional measurement or set-up, so that with a simple calculus it can be used with automatic ultrasonic measurements to calculate the density and therefore elastic constants of the composite for its complete characterization. The method is applied to 3 different materials: two composites based on epoxy and polyester resins respectively with unknown final properties and a common methacrylate sample used as reference. Results show good concordance between obtained and expected results.</p><p>DOI: <a href="http://dx.doi.org/10.5755/j01.eie.22.6.17219">http://dx.doi.org/10.5755/j01.eie.22.6.17219</a></p>}, number={6}, journal={Elektronika ir Elektrotechnika}, author={Aleksandrovas, Arturas and Rodriguez, Alberto and Svilainis, Linas and Angel de la Casa, Miguel and Salazar, Addisson}, year={2016}, month={Dec.}, pages={28 - 32} }