TY  - JOUR
AU  - Aleksandrovas, Arturas
AU  - Rodriguez, Alberto
AU  - Svilainis, Linas
AU  - Angel de la Casa, Miguel
AU  - Salazar, Addisson
PY  - 2016/12/08
Y2  - 2025/01/01
TI  - Ultrasound-Based Density Estimation of Composites Using Water-Air Interface
JF  - Elektronika ir Elektrotechnika
JA  - ELEKTRON ELEKTROTECH
VL  - 22
IS  - 6
SE  - 
DO  - 10.5755/j01.eie.22.6.17219
UR  - https://eejournal.ktu.lt/index.php/elt/article/view/17219
SP  - 28 - 32
AB  - &lt;p class=&quot;Abstract&quot;&gt;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.&lt;/p&gt;&lt;p&gt;DOI: &lt;a href=&quot;http://dx.doi.org/10.5755/j01.eie.22.6.17219&quot;&gt;http://dx.doi.org/10.5755/j01.eie.22.6.17219&lt;/a&gt;&lt;/p&gt;
ER  -