JPS56115919A - Ultrasonic current meter for high temperature - Google Patents

Ultrasonic current meter for high temperature

Info

Publication number
JPS56115919A
JPS56115919A JP1793080A JP1793080A JPS56115919A JP S56115919 A JPS56115919 A JP S56115919A JP 1793080 A JP1793080 A JP 1793080A JP 1793080 A JP1793080 A JP 1793080A JP S56115919 A JPS56115919 A JP S56115919A
Authority
JP
Japan
Prior art keywords
elements
piping
ultrasonic
high temperature
fluid
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
JP1793080A
Other languages
Japanese (ja)
Inventor
Sakae Ogiwara
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1793080A priority Critical patent/JPS56115919A/en
Publication of JPS56115919A publication Critical patent/JPS56115919A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66Measuring 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To obtain the ultrasonic current meter for high temperature which is of high precision and with little false measurement by a method wherein ultrasonic elements having Curie point at high temperature are fitted to piping so as to contact directly with the fluid to be measured. CONSTITUTION:To the piping 11 wherethrough the fluid 12 to be measured flows are fixed the ultrasonic elements 10a, 10a', 10b and 10b' composed of acoustic transducing elements whose Curie point is 1,000 deg.C or above in such a manner that the central axes thereof accord with each other and that the distance between the tip surfaces of the elements 10a, 10a' and 10b, 10b' is equal. Since a ring-shaped body 14 supporting the ultrasonic elements 10a, 10a', 10b and 10b' is faced and welded with a ring-shaped body 13 projected from the piping 11 so that the tip of the body 14 contacts directly with the fluid 12 to be measured as shown in the figure, the ultrasonic elements 10a, 10a', 10b and 10b' can be prevented from attenuation due to reflections of the piping, the elements or the like.
JP1793080A 1980-02-18 1980-02-18 Ultrasonic current meter for high temperature Pending JPS56115919A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1793080A JPS56115919A (en) 1980-02-18 1980-02-18 Ultrasonic current meter for high temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1793080A JPS56115919A (en) 1980-02-18 1980-02-18 Ultrasonic current meter for high temperature

Publications (1)

Publication Number Publication Date
JPS56115919A true JPS56115919A (en) 1981-09-11

Family

ID=11957478

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1793080A Pending JPS56115919A (en) 1980-02-18 1980-02-18 Ultrasonic current meter for high temperature

Country Status (1)

Country Link
JP (1) JPS56115919A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000026618A1 (en) * 1998-11-03 2000-05-11 D-Flow Group Ab Device for temperature compensation in an acoustic flow meter
JP2020038065A (en) * 2018-09-03 2020-03-12 パナソニックIpマネジメント株式会社 Ultrasonic flowmeter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000026618A1 (en) * 1998-11-03 2000-05-11 D-Flow Group Ab Device for temperature compensation in an acoustic flow meter
US6532828B1 (en) 1998-11-03 2003-03-18 D-Flow Group Ab Device for temperature compensation in an acoustic flow meter
JP2020038065A (en) * 2018-09-03 2020-03-12 パナソニックIpマネジメント株式会社 Ultrasonic flowmeter
WO2020049893A1 (en) * 2018-09-03 2020-03-12 パナソニックIpマネジメント株式会社 Ultrasonic flowmeter

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