Title:
ULTRASONIC TRANSCEIVER, ULTRASONIC FLOWMETER, ULTRASONIC FLOW VELOCIMETER, ULTRASONIC DENSITOMETER, AND MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/200925
Kind Code:
A1
Abstract:
The present disclosure provides an ultrasonic transceiver capable of measuring a high-temperature and high-humidity fluid stably for a long period, and an ultrasonic flowmeter, an ultrasonic flow velocimeter, and an ultrasonic densitometer using the same. An ultrasonic transceiver (1) comprising a piezoelectric (3) and an acoustic matching body (2) disposed on one surface of the piezoelectric (3), wherein the acoustic matching body (2) comprises: a sealed space formed by a top plate, a bottom plate, and a side wall; and a vertical bulkhead formed in close contact with the top plate and the bottom plate and substantially perpendicular to the bottom plate so as to divide the sealed space.
Inventors:
NAKANO MAKOTO
HASHIDA MASAMICHI
MASUDA TOMOKI
NAKABAYASHI YUUJI
NAGAHARA HIDETOMO
HASHIDA MASAMICHI
MASUDA TOMOKI
NAKABAYASHI YUUJI
NAGAHARA HIDETOMO
Application Number:
PCT/JP2021/013500
Publication Date:
October 07, 2021
Filing Date:
March 30, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H04R17/00; G01F1/66; G01N29/024; G01N29/28; H04R31/00
Foreign References:
| JP2009105709A | 2009-05-14 | |||
| JP2003078996A | 2003-03-14 | |||
| JP2005037219A | 2005-02-10 | |||
| JP2016153750A | 2016-08-25 | |||
| JP2004343263A | 2004-12-02 | |||
| JP2019012921A | 2019-01-24 | |||
| JP2002135894A | 2002-05-10 | |||
| JP2010268262A | 2010-11-25 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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