Title:
ULTRASONIC FLOW MEASUREMENT UNIT AND ULTRASONIC FLOWMETER USING SAME
Document Type and Number:
WIPO Patent Application WO/2012/008151
Kind Code:
A1
Abstract:
Disclosed is an ultrasonic flow measurement unit (50) provided with a measurement flow path (7) through which a fluid to be measured (16) flows, a pair of ultrasonic vibrators (1, 9) disposed upstream and downstream of the measurement flow path (7) and capable of transmitting and receiving an ultrasonic signal, and an ultrasonic vibrator mounting part (8) provided to the measurement flow path (7). The ultrasonic vibrators (1, 9) each comprise a piezoelectric element (4), a terminal (12) for applying voltage to the piezoelectric element (4), and an acoustic matching layer (5) bonded to the transmission-side surface of the terminal (12). The ultrasonic vibrators (1, 9) are affixed to the ultrasonic vibrator mounting part (8) by a coating material (13) having elasticity.
Inventors:
FUJII, Yuji (())
藤井 裕史 (())
SATOU, Masato (())
佐藤 真人 (())
藤井 裕史 (())
SATOU, Masato (())
佐藤 真人 (())
Application Number:
JP2011/003996
Publication Date:
January 19, 2012
Filing Date:
July 13, 2011
Export Citation:
Assignee:
PANASONIC CORPORATION (1006, Oaza Kadoma Kadoma-sh, Osaka 01, 〒5718501, JP)
パナソニック株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 〒5718501, JP)
FUJII, Yuji (())
藤井 裕史 (())
SATOU, Masato (())
パナソニック株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 〒5718501, JP)
FUJII, Yuji (())
藤井 裕史 (())
SATOU, Masato (())
International Classes:
G01F1/66; H04R17/00
Attorney, Agent or Firm:
NAITO, Hiroki et al. (1006 Oaza Kadoma, Kadoma-sh, Osaka 01, 〒5718501, JP)
Claims: