ULTRASONIC OSCILLATOR, ITS FABRICATION PROCESS, AND ULTRASONIC FLUID MEASURING APPARATUS

摘要

PROBLEM TO BE SOLVED: To enhance reliability of an ultrasonic oscillator, and to provide a high reliability ultrasonic flowmeter employing it.

SOLUTION: Reliability is enhanced by constituting an ultrasonic oscillator 1 of a rectangular-parallelepiped piezoelectric 2, and composing a sound matching layer 3 of a porous ceramic body including organic glass. A high reliability ultrasonic flowmeter 7 is realized using that ultrasonic oscillator 1.

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