Title :
High-order ultrasonic harmonic generation by a circular transducer
Author :
D´Angelo, R. ; Kimball, C.V. ; Kostek, S. ; Plona, T.J.
Author_Institution :
Schlumberger-Doll Res., Ridgefield, CT, USA
Abstract :
Pressure field measurements in water for a 1-in-diameter circular transducer driven at 1 MHz are reported. The measurements were taken along the axis and also at right angles to it for average face pressure varying from 10 to 200 kPa. Numerical calculations were carried out using the Kuznetsov-Zabolotskaya-Khokhlov equation, which is a parabolic nonlinear wave equation that accounts for the combined effects of diffraction, attenuation, and nonlinearity. The computed and measured fields through the fifth harmonic are in good agreement for the range of pressures investigated
Keywords :
acoustic field; harmonic generation; nonlinear acoustics; ultrasonic transducers; 1 MHz; 10 to 200 kPa; Kuznetsov-Zabolotskaya-Khokhlov equation; attenuation; average face pressure; circular transducer; combined effects; diffraction; fifth harmonic; high-order harmonics; nonlinearity; parabolic nonlinear wave equation; piston source in water; pressure field; ultrasonic harmonic generation; Attenuation; Diffraction; Frequency conversion; Nonlinear equations; Partial differential equations; Piezoelectric transducers; Pistons; Pressure measurement; Ultrasonic transducers; Voltage;
Conference_Titel :
Ultrasonics Symposium, 1992. Proceedings., IEEE 1992
Conference_Location :
Tucson, AZ
Print_ISBN :
0-7803-0562-0
DOI :
10.1109/ULTSYM.1992.275917
