JPS571913A - Vortex flow meter - Google Patents

Vortex flow meter

Info

Publication number
JPS571913A
JPS571913A JP7596280A JP7596280A JPS571913A JP S571913 A JPS571913 A JP S571913A JP 7596280 A JP7596280 A JP 7596280A JP 7596280 A JP7596280 A JP 7596280A JP S571913 A JPS571913 A JP S571913A
Authority
JP
Japan
Prior art keywords
light
flow meter
generating body
recess
signals
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
JP7596280A
Other languages
Japanese (ja)
Other versions
JPS605884B2 (en
Inventor
Yoshio Kurita
Masanori Noguchi
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP55075962A priority Critical patent/JPS605884B2/en
Publication of JPS571913A publication Critical patent/JPS571913A/en
Publication of JPS605884B2 publication Critical patent/JPS605884B2/en
Expired 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
    • G01F1/05—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 using mechanical effects
    • G01F1/20—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 using mechanical effects by detection of dynamic effects of the flow
    • G01F1/32—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 using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
    • G01F1/325—Means for detecting quantities used as proxy variables for swirl

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To obtain a vortex flow meter of high detecting sensitivity, having a simple structure, by employing such constitution that a light source and a light-receiving part are disposed in the recess provided at one end of a vortex generating body, and the change in the quantity of light reflected from the bottom surface of the recess is detected. CONSTITUTION:When a fluid flows through a duct 1, Karman vortexes are alternately and regularly generated from both sides of a vortex generating body 2, so that the bottom surface 51 of a recess 5 in the vortex generating body receives a lifting power alternately changing in direction. As a result, there are changes in the quantity of light which goes out from a light-feeding fiber 60 and is incident on light-receiving fibers 61 and 62 after being reflected from the bottom surface 51. Said optical signals are inputted through light-receiving elements 91 and 92 and amplifiers A1 and A2 to an amplifier A3, from which the differential output between both signals is obtained. In addition, both signals are added to each other in an amplifier A4, and the light output of a light source 8 is controlled so that said added signal becomes a constant value with respect to a reference setting signal ES. Thereby, a vortex flow meter having both a simple structure and a high detecting sensitivity can be obtained.
JP55075962A 1980-06-05 1980-06-05 vortex flow meter Expired JPS605884B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55075962A JPS605884B2 (en) 1980-06-05 1980-06-05 vortex flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55075962A JPS605884B2 (en) 1980-06-05 1980-06-05 vortex flow meter

Publications (2)

Publication Number Publication Date
JPS571913A true JPS571913A (en) 1982-01-07
JPS605884B2 JPS605884B2 (en) 1985-02-14

Family

ID=13591347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55075962A Expired JPS605884B2 (en) 1980-06-05 1980-06-05 vortex flow meter

Country Status (1)

Country Link
JP (1) JPS605884B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923257A (en) * 1982-07-28 1984-02-06 Hokuyo Automatic Co Optical fiber type sensor
JPS5954919A (en) * 1982-09-21 1984-03-29 Ohkura Electric Co Ltd Mechanical light modulating device
JPS60236073A (en) * 1984-05-09 1985-11-22 Sumitomo Electric Ind Ltd Fault locator for transmission line
JPS6126122U (en) * 1984-07-24 1986-02-17 科学技術庁航空宇宙技術研究所長 Flowmeter
EP0319424A2 (en) * 1987-12-04 1989-06-07 SCHLUMBERGER INDUSTRIES, INC. (a Delaware corporation) Vortex flowmeter transducer
EP2075607A1 (en) * 2007-12-28 2009-07-01 British Telecmmunications public limited campany Arrival detection of air flow and a fibre unit during fibre blowing installation using relfected light

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923257A (en) * 1982-07-28 1984-02-06 Hokuyo Automatic Co Optical fiber type sensor
JPS5954919A (en) * 1982-09-21 1984-03-29 Ohkura Electric Co Ltd Mechanical light modulating device
JPS60236073A (en) * 1984-05-09 1985-11-22 Sumitomo Electric Ind Ltd Fault locator for transmission line
JPH0511269B2 (en) * 1984-05-09 1993-02-15 Sumitomo Electric Industries
JPS6126122U (en) * 1984-07-24 1986-02-17 科学技術庁航空宇宙技術研究所長 Flowmeter
JPH0313688Y2 (en) * 1984-07-24 1991-03-28
EP0319424A2 (en) * 1987-12-04 1989-06-07 SCHLUMBERGER INDUSTRIES, INC. (a Delaware corporation) Vortex flowmeter transducer
EP2075607A1 (en) * 2007-12-28 2009-07-01 British Telecmmunications public limited campany Arrival detection of air flow and a fibre unit during fibre blowing installation using relfected light
WO2009083715A1 (en) * 2007-12-28 2009-07-09 British Telecommunications Public Limited Company Arrival detection of air flow and a fibre unit during fibre blowing installation using reflected light

Also Published As

Publication number Publication date
JPS605884B2 (en) 1985-02-14

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