Title:
ULTRASONIC FLOWRATE MEASUREMENT DEVICE, CONTROLLER THEREFOR, AND ULTRASONIC FLOWRATE MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2021/261814
Kind Code:
A1
Abstract:
Disclosed according to an embodiment are an ultrasonic flowrate measurement device, a controller therefor, and an ultrasonic flowrate measurement method. A controller for an ultrasonic flowrate measurement device including a pair of ultrasonic sensors disposed on at least one side of a measurement pipe in which a fluid flows comprises: multiple switches each connected to the pair of ultrasonic sensors to turn on or turn off a signal reception path for delivering a reception signal; a noise removal unit for removing noise from the reception signal delivered through the signal reception path; a time-digital convertor for outputting a digital code corresponding to a time difference between a reception time of the noise-removed reception signal and a transmission time of a transmission signal; and a control unit which is provided with two digital codes each output at a time of forward signal propagation and a time of backward signal propagation with respect to a proceeding direction of the fluid and calculates a fluid velocity and flowrate of the fluid by using the two provided digital codes.
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Inventors:
KIM IL HWAN (KR)
LEE KYU SEONG (KR)
JUNG DONG JIN (KR)
KIM TAE IL (KR)
SEO DONG HYUN (KR)
YANG SE JIN (KR)
LEE KYU SEONG (KR)
JUNG DONG JIN (KR)
KIM TAE IL (KR)
SEO DONG HYUN (KR)
YANG SE JIN (KR)
Application Number:
PCT/KR2021/007274
Publication Date:
December 30, 2021
Filing Date:
June 10, 2021
Export Citation:
Assignee:
VALMAX TECH CORPORATION (KR)
International Classes:
G01F1/66; G01F1/708
Foreign References:
| JP2008504558A | 2008-02-14 | |||
| KR101324574B1 | 2013-11-01 | |||
| JP2007155574A | 2007-06-21 | |||
| JP2010156599A | 2010-07-15 | |||
| JP2008014840A | 2008-01-24 | |||
| KR102191395B1 | 2020-12-15 |
Attorney, Agent or Firm:
DANA PATENT LAW FIRM (KR)
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