Title :
Derivation and simulation of source function for acoustic logging
Author :
Lin Fa ; Castagna, J.P. ; Hovem, Jens Martin
Author_Institution :
Inst. for Exploration & Dev. Geosci., Oklahoma Univ., Norman, OK, USA
Abstract :
By utilizing the concepts of the radiation resistance and radiation quality of harmonic vibration, both the effective force of surrounding coupling fluid on a thin spherical shell transducer during excitation by a driving-voltage signal and its transient response function can be determined by developing an equivalent circuit. The transducer acts like an electrical-acoustic filter. The properties of both driving-voltage signal and the transducer determine that of the radiated acoustic signal.
Keywords :
equivalent circuits; geophysical prospecting; geophysical techniques; piezoelectric transducers; ultrasonic applications; ultrasonic transducers; acoustic logging; driving-voltage signal; electrical-acoustic filter; equivalent circuit; harmonic vibration; radiated acoustic signal; radiation quality; radiation resistance; source function; thin spherical shell transducer; transient response function; Acoustic measurements; Acoustic transducers; Acoustic waves; Damping; Electric resistance; Equivalent circuits; Frequency; Piezoelectric transducers; Voltage; Wavelet analysis;
Conference_Titel :
Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE
Conference_Location :
Caesars Tahoe, NV
Print_ISBN :
0-7803-5722-1
DOI :
10.1109/ULTSYM.1999.849496
