Title:
ULTRASONIC FLOW METER
Document Type and Number:
WIPO Patent Application WO/2018/174122
Kind Code:
A1
Abstract:
This ultrasonic flow meter is provided with: a tube main body provided with a flow path pipe (10) configuring a measurement flow path through which a fluid is passed; ultrasonic sensors (50) disposed upstream and downstream of the tube main body; a measurement tube (20) configuring a measurement space which, in the tube main body, communicates with the measurement flow path, has a central axis diagonally intersecting the central axis direction of the measurement flow path and forms an ultrasonic propagation path between the pair of ultrasound sensors (50); and a pair of ultrasonic sensor unit holding units (30) which hold a pair of ultrasonic sensor units (40) which hold the pair of ultrasonic sensors (50). The pair of ultrasonic sensor unit holding units open in a direction perpendicular to a plane that includes the central axis of the measurement flow path, and the pair of ultrasonic sensor units can be inserted from the same direction into the pair of ultrasonic sensor unit holding units. The flow rate of the fluid to be measured is measured on the basis of the arrival time difference of the round-trip propagation time of ultrasound between the pair of ultrasonic sensors (50).
Inventors:
HOTTA HIROYUKI (JP)
Application Number:
PCT/JP2018/011262
Publication Date:
September 27, 2018
Filing Date:
March 22, 2018
Export Citation:
Assignee:
AICHI TOKEI DENKI KK (JP)
International Classes:
G01F1/66
Foreign References:
| JP2004069529A | 2004-03-04 | |||
| JP2004526127A | 2004-08-26 | |||
| JP2007132515A | 2007-05-31 | |||
| JP2011099692A | 2011-05-19 | |||
| US20110079090A1 | 2011-04-07 |
Attorney, Agent or Firm:
ONDA, Makoto et al. (JP)
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