Verification of the acoustic path mathematical model of the ultrasonic method for measuring distances to a heated vertical plate in conditions of natural convection

• Main Authors: A.V. Voronina, S.V. Pavlov
• Format: Article
• Language: English
• Published: Penza State University Publishing House 2021-09-01
• Series: Известия высших учебных заведений. Поволжский регион:Технические науки
• Subjects: ultrasound method; ultrasound; model; geometric acoustics; natural convection; refraction

Background. This article describes a mathematical model of the acoustic path of the ultrasonic method for measuring distances to a heated vertical plate, developed in the geometrical-acoustics approximation. Based on the model, the factors influencing the measurement of the propagation time of ultrasonic waves are identified. The purpose of the work is an evaluation of applicability of the model for the development of ultrasonic pulse echo measuring systems. Materials and methods. The model of the acoustic path is verified by comparing the numerical data with experimental obtained by the authors when modeling the effect of various factors on the measurement results of the ultrasonic method. Results and conclusions. As a result of the verification shows that the calculated data obtained using the developed model, give good agreement with experimental data. The study lead to the conclusion that the presented model can be used in the development of measuring systems based on the ultrasonic echo-pulse method.