JPS56147013A - Detecting method for flow rate of liquid - Google Patents

Detecting method for flow rate of liquid

Info

Publication number
JPS56147013A
JPS56147013A JP5145780A JP5145780A JPS56147013A JP S56147013 A JPS56147013 A JP S56147013A JP 5145780 A JP5145780 A JP 5145780A JP 5145780 A JP5145780 A JP 5145780A JP S56147013 A JPS56147013 A JP S56147013A
Authority
JP
Japan
Prior art keywords
flow rate
liquid
bubbles
photodetectors
bubble
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
JP5145780A
Other languages
Japanese (ja)
Inventor
Hisataka Mukai
Toyofumi Umekawa
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.)
KYOTO DENSHI KOGYO KK
Kyoto Electronics Manufacturing Co Ltd
Original Assignee
KYOTO DENSHI KOGYO KK
Kyoto Electronics Manufacturing 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 KYOTO DENSHI KOGYO KK, Kyoto Electronics Manufacturing Co Ltd filed Critical KYOTO DENSHI KOGYO KK
Priority to JP5145780A priority Critical patent/JPS56147013A/en
Publication of JPS56147013A publication Critical patent/JPS56147013A/en
Pending 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
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
  • Flow Control (AREA)

Abstract

PURPOSE:To detect the flow rate of liquid surely and periodically and obtain always a constant flow rate by measuring the time required for the intermittently fed bubbles to to pass between two sets of photodetectors provided along the flow of liquid in a fluid flow passage having a transparent part. CONSTITUTION:Photodetectors 2, 3 consisting of light emitting diodes 2a, 3a and light receivers 2b, 3b such as phototransistors are disposed by leaving fixed spacings in the transparent part of a fluid passage 1. At every prescribed time, bubbles are produced in a bubble supply pipe 6 by a bubble feeder 8, and bubbles 9 are set into the passage 1 through a check valve 7b. The time required for the bubble 9 to pass between the photodetectors 2 and 3 is detected and a liquid feed pump 4 is so controlled as to correct the rate of its fluctuations. Thereby, the constant flow rate is obtained at all times.
JP5145780A 1980-04-17 1980-04-17 Detecting method for flow rate of liquid Pending JPS56147013A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5145780A JPS56147013A (en) 1980-04-17 1980-04-17 Detecting method for flow rate of liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5145780A JPS56147013A (en) 1980-04-17 1980-04-17 Detecting method for flow rate of liquid

Publications (1)

Publication Number Publication Date
JPS56147013A true JPS56147013A (en) 1981-11-14

Family

ID=12887459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5145780A Pending JPS56147013A (en) 1980-04-17 1980-04-17 Detecting method for flow rate of liquid

Country Status (1)

Country Link
JP (1) JPS56147013A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61181347U (en) * 1985-04-29 1986-11-12
US5170438A (en) * 1991-03-22 1992-12-08 Graham Fiber Glass Limited Method and apparatus for determining the flow rate of a viscous fluid stream
WO2005068970A1 (en) * 2004-01-14 2005-07-28 Kyoto Electronics Manufacturing Co., Ltd. Sampling apparatus
JP2008111721A (en) * 2006-10-30 2008-05-15 Horiba Advanced Techno Co Ltd Method and instrument for continuously measuring concentration of total organic carbon
WO2009066331A1 (en) * 2007-11-21 2009-05-28 Gamma Meccanica S.P.A. Method and device for determining the mass flow of a casting of molten material
WO2009093306A1 (en) * 2008-01-22 2009-07-30 Shimadzu Corporation Liquid collection device, measurement device and liquid collection/measurement system provided therewith
GB2480826A (en) * 2010-06-02 2011-12-07 Univ Leeds Low Flow Indicator
JP2014006227A (en) * 2012-06-27 2014-01-16 Tokyo Rika Kikai Kk Flow measurement instrument and flow measurement method
US8783121B2 (en) 2009-03-19 2014-07-22 Shumadzu Corporation Liquid collecting system and a method therefor
CN112889013A (en) * 2018-09-06 2021-06-01 可口可乐公司 Flow control module with thermal mass flow meter
CN115227907A (en) * 2022-06-22 2022-10-25 山东安得医疗用品股份有限公司 Speed-measuring infusion apparatus, infusion pump and monitor for infusion apparatus and speed measuring method

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61181347U (en) * 1985-04-29 1986-11-12
US5170438A (en) * 1991-03-22 1992-12-08 Graham Fiber Glass Limited Method and apparatus for determining the flow rate of a viscous fluid stream
WO2005068970A1 (en) * 2004-01-14 2005-07-28 Kyoto Electronics Manufacturing Co., Ltd. Sampling apparatus
JP2008111721A (en) * 2006-10-30 2008-05-15 Horiba Advanced Techno Co Ltd Method and instrument for continuously measuring concentration of total organic carbon
WO2009066331A1 (en) * 2007-11-21 2009-05-28 Gamma Meccanica S.P.A. Method and device for determining the mass flow of a casting of molten material
CN101925821A (en) * 2008-01-22 2010-12-22 株式会社岛津制作所 System is measured in liquid extraction device, determinator and the liquid extraction with them
WO2009093306A1 (en) * 2008-01-22 2009-07-30 Shimadzu Corporation Liquid collection device, measurement device and liquid collection/measurement system provided therewith
US8358405B2 (en) 2008-01-22 2013-01-22 Shimadzu Corporation Measuring apparatus, and liquid collecting and measuring system having the same
US8783121B2 (en) 2009-03-19 2014-07-22 Shumadzu Corporation Liquid collecting system and a method therefor
GB2480826A (en) * 2010-06-02 2011-12-07 Univ Leeds Low Flow Indicator
JP2014006227A (en) * 2012-06-27 2014-01-16 Tokyo Rika Kikai Kk Flow measurement instrument and flow measurement method
CN112889013A (en) * 2018-09-06 2021-06-01 可口可乐公司 Flow control module with thermal mass flow meter
CN115227907A (en) * 2022-06-22 2022-10-25 山东安得医疗用品股份有限公司 Speed-measuring infusion apparatus, infusion pump and monitor for infusion apparatus and speed measuring method
CN115227907B (en) * 2022-06-22 2024-06-04 山东安得医疗用品股份有限公司 Speed measuring infusion apparatus, infusion pump, monitor and speed measuring method for infusion apparatus

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