Title :
Accurate determination of transit time of ultrasound in thin layers
Author :
Kanai, H. ; Kimura, T. ; Chubachi, N.
Author_Institution :
Dept. of Electr. Eng., Tohoku Univ., Sendai, Japan
fDate :
6/22/1995 12:00:00 AM
Abstract :
The authors propose a new method to remove the transient response of the piezoelectric transducer in the pulse-echo method using the inverse Fourier transform acoustic input impedance and reflection coefficient so that the time resolution in the measurement of transit time in a thin object may be increased
Keywords :
Fourier transforms; acoustic impedance; piezoelectric transducers; thickness measurement; transient response; ultrasonic materials testing; ultrasonic velocity measurement; acoustic input impedance; inverse Fourier transform; layer thickness measurement; piezoelectric transducer; pulse-echo method; reflection coefficient; thin layers; time resolution; transient response elimination; ultrasound transit time determination;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950716
