JPS5576914A - Ultrasonic flow meter - Google Patents

Ultrasonic flow meter

Info

Publication number
JPS5576914A
JPS5576914A JP14999478A JP14999478A JPS5576914A JP S5576914 A JPS5576914 A JP S5576914A JP 14999478 A JP14999478 A JP 14999478A JP 14999478 A JP14999478 A JP 14999478A JP S5576914 A JPS5576914 A JP S5576914A
Authority
JP
Japan
Prior art keywords
fluid
conduit
units
unit
measured value
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.)
Pending
Application number
JP14999478A
Other languages
Japanese (ja)
Inventor
Tetsuo Nehashi
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.)
SPC Electronics Corp
Original Assignee
SPC Electronics Corp
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 SPC Electronics Corp filed Critical SPC Electronics Corp
Priority to JP14999478A priority Critical patent/JPS5576914A/en
Publication of JPS5576914A publication Critical patent/JPS5576914A/en
Pending legal-status Critical Current

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  • Measuring Volume Flow (AREA)

Abstract

PURPOSE:To enable accurate measurement of flow rate, by providing a means for completely removing a measured value of a fixed lag time which is a propagation time in a medium except for a fluid. CONSTITUTION:Ultrasonic transmission and reception units 2, 2' of the same characteristics are mounted on a conduit 1 so that the units obliquely face each other. Another ultrasonic transmission and reception unit 2'' of the same characteristics as the former units 2, 2' is provided in such a position that the unit 2'' can definitely receive ultrasonic pulses emitted from the electroacoustic transducer 3 of the unit 2 and reflected on the boundary between a fluid and the inside surface of the conduit. As a result, a measured value can be accurately and completely removed of the propagation time in a medium such as shoes 4, 4' and the conduit wall except for the fluid.
JP14999478A 1978-12-06 1978-12-06 Ultrasonic flow meter Pending JPS5576914A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14999478A JPS5576914A (en) 1978-12-06 1978-12-06 Ultrasonic flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14999478A JPS5576914A (en) 1978-12-06 1978-12-06 Ultrasonic flow meter

Publications (1)

Publication Number Publication Date
JPS5576914A true JPS5576914A (en) 1980-06-10

Family

ID=15487134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14999478A Pending JPS5576914A (en) 1978-12-06 1978-12-06 Ultrasonic flow meter

Country Status (1)

Country Link
JP (1) JPS5576914A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004264252A (en) * 2003-03-04 2004-09-24 Fuji Electric Retail Systems Co Ltd Ultrasonic flow rate and temperature meter, and beverage discharging apparatus
JP2004271496A (en) * 2003-03-06 2004-09-30 Krohne Ag Ultrasonic flow measuring method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004264252A (en) * 2003-03-04 2004-09-24 Fuji Electric Retail Systems Co Ltd Ultrasonic flow rate and temperature meter, and beverage discharging apparatus
JP2004271496A (en) * 2003-03-06 2004-09-30 Krohne Ag Ultrasonic flow measuring method
JP2008134267A (en) * 2003-03-06 2008-06-12 Krohne Ag Ultrasonic flow measurement method

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