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Reflection ultrasonic microspectrometer for a small quantity of liquid using correlation method

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3 Author(s)
N. Chubachi ; Tohoku University, Department of Electrical Engineering, Faculty of Engineering, Sendai, Japan ; T. Sannomiya ; K. Imano

A correlation method has been only recently introduced into acoustic microscopical techniques for the measurement of frequency dependence of velocity and attenuation in a small quantity of liquid. The experiments have been demonstrated with drops of water (0.1¿0.2 cm3) as a standard liquid material over the frequency range from 100 to 340 MHz. The system has been established with accuracy better than 0.2% and 3.9% for velocity and attenuation, respectively.

Published in:

Electronics Letters  (Volume:22 ,  Issue: 1 )