Title:
ULTRASONIC OSCILLATOR AND FLUID FLOW MEASURING DEVICE USING IT
Document Type and Number:
Japanese Patent JP2004294181
Kind Code:
A
Abstract:
To provide an ultrasonic oscillator capable of suppressing unnecessary vibration, and measuring highly accurately when used for fluid flow measurement.
In this oscillator, an acoustic adjustment layer 4 is bonded on the outer surface of the top wall of a metal cap 2 and a piezoelectric body 5 is bonded on the inner surface thereof respectively, and an elastic body 12 for suppressing vibration is mounted on a portion equivalent to the antinode of vibration on the outer peripheral surface of the cap 2. The elastic body 12 functions as a vibration load on the cap outer peripheral surface, and resultantly oscillation generation is suppressed.
Inventors:
OCHI KENZO
BETSUSOU DAISUKE
BETSUSOU DAISUKE
Application Number:
JP2003085032A
Publication Date:
October 21, 2004
Filing Date:
March 26, 2003
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G01F1/66; (IPC1-7): G01F1/66
Attorney, Agent or Firm:
Fumio Iwahashi
Tomoyasu Sakaguchi
Hiroki Naito
Tomoyasu Sakaguchi
Hiroki Naito
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