Subject matter of the experimentTheoretical and practical aspects of the experimentResultsEquipmentRelated experimentsSubject matter of the experiment A sample with built-in discontinuities is examined by means of the pulse echo method. Amplitude scans are carried out from different sides of the sample. The echo signals imaged in the recorded A-Scan images are examined and analysed. Keywords:...
Demonstration of the difference between the spectrum of a pulse and the spectra of periodic signals using the simple model of multiple reflection at a plate
Investigation of the formation and propagation of longitudinal and shear acoustic waves in solids based upon the ultrasonic transmission through a plane parallel plate at different angles of incidence
Demonstration of the basics of the B-scan method by recording the ultrasonic cross-sectional image of a simple test object “by hand” using an ultrasonic echoscope
Characterization of the sound fields of two ultrasonic probes of different frequencies by scanning reflection and transmission with a hydrophone (near field length, focus zone, axial resolution power)
Simulation of the movement of the cardiac wall with a simple heart model, examination by means of the time-motion method (TM-mode, echocardiography), determination of heart rate and cardiac output
Demonstration of blood flow examinations by means of the ultrasonic Doppler method using a realistic arm phantom, Presentation of the differences between continuous venous and pulsatile arterial flow
Examination of an ultrasound test phantom with a normal beam probe and/or an array probe. Assessment of accuracy and performance of the ultrasound system in terms of resolution, dead zone…
Analysis of applicability and performance of different discontinuity locating techniques of non-destructive testing with ultraound using a test block with different types of discontinuities (defects)