US 12,270,693 B2
Ultrasonic transceiver, ultrasonic flowmeter, ultrasonic flow velocimeter, ultrasonic densitometer, and manufacturing method
Makoto Nakano, Kyoto (JP); Masamichi Hashida, Shiga (JP); Tomoki Masuda, Osaka (JP); Yuuji Nakabayashi, Nara (JP); and Hidetomo Nagahara, Kyoto (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 17/916,276
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Mar. 30, 2021, PCT No. PCT/JP2021/013500
§ 371(c)(1), (2) Date Sep. 30, 2022,
PCT Pub. No. WO2021/200925, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 2020-067176 (JP), filed on Apr. 3, 2020.
Prior Publication US 2023/0145490 A1, May 11, 2023
Int. Cl. G01F 1/66 (2022.01); G01F 1/667 (2022.01); G01F 1/7082 (2022.01)
CPC G01F 1/667 (2013.01) [G01F 1/662 (2013.01); G01F 1/7082 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An ultrasonic transceiver, comprising:
a piezoelectric body; and
an acoustic matching body disposed on one face of the piezoelectric body,
wherein the acoustic matching body includes:
a top plate, a bottom plate, and a side wall,
the top plate, the bottom plate, and the side wall defining a closed space;
a perpendicular partition wall formed substantially perpendicularly to the bottom plate and adhering to the top plate and the bottom plate, thereby dividing the closed space; and
a horizontal partition wall formed substantially horizontally to the bottom plate and adhering to the side wall, thereby dividing the closed space.