Title :
A model for acoustic ultrashort pulseby a disc-shaped transducer
Author :
Jin-wen Ding ; Qing-ping Zhang ; Levin, Vadim M. ; Kang Li ; Wei Liu
Author_Institution :
Dept. of Mater. Sci. & Eng., Univ. of Sci. & Technol. of China, Hefei, China
fDate :
Oct. 30 2014-Nov. 2 2014
Abstract :
Acoustic lens is the kernel of acoustic microscopes. Its quality determines the quality of an imaging system. For impulse acoustical imaging system, it becomes more important. The ultrashort probe excited by an acoustic lens is an unique ultrasound source. Analyzing the signal structure of ultrashort pulse is the key to evaluate the acoustic lens. This paper presents a mathematic model, simulating an impulse pulse generated by a disc-shaped piezoelectric transducer of an acoustic lens, evaluating the temporal spatial distribution of the impulse wave propagation in the waveguide of the acoustic lens. The simulation results show this model is significant and practical for investigating the mechanism of acoustic ultrashort pulse and its application.
Keywords :
acoustic waveguides; lenses; piezoelectric transducers; ultrasonic imaging; ultrasonic propagation; ultrasonic transducers; acoustic lens waveguide; acoustic microscope kernel; acoustic ultrashort pulse mechanism; disc-shaped piezoelectric transducer; disc-shaped transducer; imaging system quality; impulse acoustical imaging system; impulse wave propagation; mathematic model; signal structure; temporal spatial distribution; ultrashort probe; ultrasound source; Acoustic waveguides; Lenses; Microscopy; Optical pulse generation; Transducers; Acoustic lens; Impulse scanning acoustic microscope; Piezoelectric transducer; Signal aberration; Ultrashort pulse; Wave propagation;
Conference_Titel :
Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA), 2014 Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-6424-6
DOI :
10.1109/SPAWDA.2014.6998523
