This dataset contains modelled diffraction corrections for an example ultrasonic transmit-receive measurement system with piezoelectric transducers, and the underlying raw data used to calculate these diffraction corrections. Three different diffraction correction models are used: the finite element diffraction correction model (FEDC), the simplified finite element diffraction correction model (SFDC) and the baffled piston diffraction correction model (BPDC).

The example modelling case is an ultrasonic measurement system in air at ambient conditions, with two coaxially aligned cylindrical piezoelectric ceramic disk transducers of the material Pz27 (CTS Ferroperm Piezoceramics, Denmark) with dimensions 20x2 mm. The main output parameters are voltage-to-voltage transfer functions and diffraction corrections, as a function of frequency and axial distance.

The data was produced as part of a PhD funded by the the Research Council of Norway, under the project "Subsea gas energy and quality measurement using ultrasonic flow meters" with project number 303169.

COMSOL Multiphysics, 5.6

Matlab, R2022a