Author:
Aynur Jabiyeva Aynur Jabiyeva
Abstract
All audible and inaudible sound oscillations propagate to the environment as mechanical oscillations, having the property of waves. When sound propagates, positive and negative pressures occur at a frequency equal to its frequency. Sound waves propagate in the same straight direction and are reflected and absorbed in the environment. The speed of propagation of ultrasonic waves varies in different environments, that is, the denser the medium, the higher the speed of propagation. Ultrasound treatment is carried out using special advanced devices. Ultrasonic vibrations in modern devices are obtained by piezoelectric effect.
Keywords: sound vibrations, ultrasonic waves, piezoelectric effect, ultrasonic physics, amplifiers, voltage, current, ultrasonic scanner, automatic adjustment generator, adiabatic rotation sequence, apodization
Publisher
Education Support and Investment Fund NGO
Reference6 articles.
1. P.A. Bottomley, and R.G. Weiss, Non-invasive magnetic-resonance detection of creatine depletion in non-viable infarcted myocardium. Lancet 351 (1998) 714- 718.
2. D.J. Griffiths, Introduction to electrodynamics, Prentice Hall, Upper Saddle River, NJ, 1999.
3. A.J. Shaka, J. Keeler, T. Frenkiel, and R. Freeman, An improved sequence for broad-band decoupling - Waltz-16. Journal of Magnetic Resonance 52 (1983) 335-338.
4. H. Bomsdorf, P. Roschmann, and J. Wieland, Sensitivity enhancement in whole- body natural abundance C-13 spectroscopy ssing C-13/H-1 double-resonance techniques at 4-Tesla. Magnetic Resonance in Medicine 22 (1991).
5. https://onlinelibrary.wiley.com/doi/pdf/10.1002/jmri.26187