Vol. 17 / 2022 – International Conference on Virtual Learning

Development of Ultrasonic Device for High School Lab Activity

Silvia DECHKOVA, Julieta ILIEVA, Zlatin ZLATEV


Using the methods of comparative analysis and those for the development of educational and technical means, a model of a device for obtaining ultrasonic characteristics is proposed. The comparative analysis showed that ultrasound measurement systems can be divided into three main groups: using an oscilloscope, using a Data Logger and stand-alone measurement systems. Summarized, the factors that affect measurement accuracy can be divided into two main groups - essential, which must be compensated for, and minor, which can be neglected. Pedagogical aspects in the development and use of ultrasound devices are reviewed. It has been found that they can be successfully used in project-based and problem-based learning. Multimedia learning can be successfully combined with game-based learning. A laboratory setup is proposed, in which, in addition to the ultrasound system, an oscilloscope is used. Despite the shortcomings of this configuration, it has the potential to be used in more than one academic discipline.

Pedagogical approaches, Quality assessment, Lab activity, Ultrasonic, Doppler

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Silvia DECHKOVA, Julieta ILIEVA, Zlatin ZLATEV, "Development of Ultrasonic Device for High School Lab Activity", International Conference on Virtual Learning, ISSN 2971-9291, ISSN-L 1844-8933, vol. 17, pp. 265-274, 2022. https://doi.org/10.58503/icvl-v17y202222