Ultrasound-Based Density Estimation of Composites Using Water-Air Interface

  • Arturas Aleksandrovas
  • Alberto Rodriguez
  • Linas Svilainis
  • Miguel Angel de la Casa
  • Addisson Salazar
Keywords: Ultrasound, composite, material characteri-zation, density

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.

DOI: http://dx.doi.org/10.5755/j01.eie.22.6.17219

Published
2016-12-08
How to Cite
Aleksandrovas, A., Rodriguez, A., Svilainis, L., Angel de la Casa, M., & Salazar, A. (2016). Ultrasound-Based Density Estimation of Composites Using Water-Air Interface. Elektronika Ir Elektrotechnika, 22(6), 28 - 32. https://doi.org/10.5755/j01.eie.22.6.17219
Section
ELECTRONIC MEASUREMENTS