Ultrasonic methods for determining flows and velocity fields

Author:

Barraclough Veronika,Cizek Jan,Strob Miroslav,Novosad Jan,Pulec Jaroslav,Dancova Petra

Abstract

This paper introduces research and development of a modern non-invasive device for determining flows and velocity fields. This device is based on the ultrasonic method. The measured fluid flow is surrounded by appropriate ultrasonic transmitters and receivers, which communicate with each other. A physical principle of this method consists in an interaction of sound waves with a flow, which generates a certain delay in sound waves transmission. The found quantity is thus time delay. The device is being designed as a flowmeter and with advanced and extended postprocessing as a tomograph, which reconstructs a 3D vector field for big volumes. This whole process requires the following: development of an appropriate design of the ultrasonic flowmeter and tomograph, testing the signal transfer and also various postprocessing methods on a measurement accuracy, building of a special verification experimental equipment and building of an electronic device as a control unit and data acquisition system.

Publisher

EDP Sciences

Subject

General Medicine

Reference7 articles.

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3. Ultrasonic tomographic velocimeter for visualization of axial flow fields in pipes

4. Ultrasonic tomography for visualizing the velocity profile of air flow

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