JPS57194313A - Ultrasonic flow meter for gas - Google Patents

Ultrasonic flow meter for gas

Info

Publication number
JPS57194313A
JPS57194313A JP56079698A JP7969881A JPS57194313A JP S57194313 A JPS57194313 A JP S57194313A JP 56079698 A JP56079698 A JP 56079698A JP 7969881 A JP7969881 A JP 7969881A JP S57194313 A JPS57194313 A JP S57194313A
Authority
JP
Japan
Prior art keywords
fluid
ultrasonic
measured
flow
wave
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP56079698A
Other languages
Japanese (ja)
Other versions
JPH0221528B2 (en
Inventor
Hiroshi Yamamoto
Masahiro Kanayama
Teruki Fukami
Toei Okuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oval Kiki Kogyo KK
Oval Engineering Co Ltd
Original Assignee
Oval Kiki Kogyo KK
Oval Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oval Kiki Kogyo KK, Oval Engineering Co Ltd filed Critical Oval Kiki Kogyo KK
Priority to JP56079698A priority Critical patent/JPS57194313A/en
Publication of JPS57194313A publication Critical patent/JPS57194313A/en
Publication of JPH0221528B2 publication Critical patent/JPH0221528B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters

Abstract

PURPOSE:To precisely measure the flow rate of a fluid through ultrasonic wave transmission and reception, by completely straightening a turbulent flow, specially a rotary flow of a fluid to be measured by the successive constitution of a large-diameter opening part, a straightening device, and an arc-shaped throttle part. CONSTITUTION:A fluid to be measured flows into the opening part 1 of a flow meter body (a) and is supplied to a straightening device 6 to straighten a turbulent and a rotary flow; and a trailing practicable throttle part 5 reduces the sectional area of the fluid to accelerate the straighening, and the fluid is transported to a fluid measurement part 2. Continuous ultrasonic waves driven by oscillators are transmitted slantingly from the up side and down side of the fluid to be measured, so ultrasonic-wave receivers 4 provided at opposite positions receive the ultrasonic wave signals. According to the velocity of the fluid to be measured, the ultrasonic waves received by the ultrasonic-wave receivers 4 provided at the up side and down side differ in phase difference and measurement results of two couples of ultrasonic-wave transmitting and receiving mechanisms (b) are operated to measure a desired flow rate.
JP56079698A 1981-05-26 1981-05-26 Ultrasonic flow meter for gas Granted JPS57194313A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56079698A JPS57194313A (en) 1981-05-26 1981-05-26 Ultrasonic flow meter for gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56079698A JPS57194313A (en) 1981-05-26 1981-05-26 Ultrasonic flow meter for gas

Publications (2)

Publication Number Publication Date
JPS57194313A true JPS57194313A (en) 1982-11-29
JPH0221528B2 JPH0221528B2 (en) 1990-05-15

Family

ID=13697421

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56079698A Granted JPS57194313A (en) 1981-05-26 1981-05-26 Ultrasonic flow meter for gas

Country Status (1)

Country Link
JP (1) JPS57194313A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523478A (en) * 1983-08-18 1985-06-18 Nusonics, Inc. Sonic flow meter having improved flow straighteners
JPH109916A (en) * 1996-06-26 1998-01-16 Matsushita Electric Ind Co Ltd Ultrasonic flowmeter
WO2000055581A1 (en) * 1999-03-17 2000-09-21 Matsushita Electric Industrial Co., Ltd. Ultrasonic flowmeter
JP2001133307A (en) * 1999-11-05 2001-05-18 Matsushita Electric Ind Co Ltd Inflow and outflow symmetric flowmeter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0926342A (en) * 1995-07-13 1997-01-28 Matsushita Electric Ind Co Ltd Ultrasonic oscillator and ultrasonic flowmeter using it
JP3907613B2 (en) * 1997-04-18 2007-04-18 松下電器産業株式会社 Ultrasonic flow meter

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523478A (en) * 1983-08-18 1985-06-18 Nusonics, Inc. Sonic flow meter having improved flow straighteners
JPH109916A (en) * 1996-06-26 1998-01-16 Matsushita Electric Ind Co Ltd Ultrasonic flowmeter
WO2000055581A1 (en) * 1999-03-17 2000-09-21 Matsushita Electric Industrial Co., Ltd. Ultrasonic flowmeter
US6748811B1 (en) 1999-03-17 2004-06-15 Matsushita Electric Industrial Co., Ltd. Ultrasonic flowmeter
KR100488272B1 (en) * 1999-03-17 2005-05-11 마쯔시다덴기산교 가부시키가이샤 Ultrasonic flowmeter
CN100453980C (en) * 1999-03-17 2009-01-21 松下电器产业株式会社 Ultrasonic flowmeter
JP2001133307A (en) * 1999-11-05 2001-05-18 Matsushita Electric Ind Co Ltd Inflow and outflow symmetric flowmeter

Also Published As

Publication number Publication date
JPH0221528B2 (en) 1990-05-15

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