JPS57125319A - Device for measuring flow rate - Google Patents

Device for measuring flow rate

Info

Publication number
JPS57125319A
JPS57125319A JP56009724A JP972481A JPS57125319A JP S57125319 A JPS57125319 A JP S57125319A JP 56009724 A JP56009724 A JP 56009724A JP 972481 A JP972481 A JP 972481A JP S57125319 A JPS57125319 A JP S57125319A
Authority
JP
Japan
Prior art keywords
powder body
flow speed
concentration
voltage
electrostatic
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
JP56009724A
Other languages
Japanese (ja)
Inventor
Tatsuji Maidoko
Shigetada Matsushita
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Fuji Electric 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 Fuji Electric Co Ltd, Fuji Electric Manufacturing Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP56009724A priority Critical patent/JPS57125319A/en
Publication of JPS57125319A publication Critical patent/JPS57125319A/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
    • G01F1/74—Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid

Landscapes

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

Abstract

PURPOSE:To obtain the mass and the flow rate of powder body by providing two sets of detectors which detect the concentration of the powder body in two phase liquid in upstream and downstream with a specified distance being provided, measuring the flow speed and the like of the powder body, and concurrent ly measuring the flow speed and the concentration of the powder body by the same detector. CONSTITUTION:A pipe 2 wherein the two phase liquid 1 including the powder body flows comprises electrical insulating material. Two pairs of opposing electrostatic electrode plates 31 and 32 and 41 and 42 are provided along the outer wall of said pipe 2 with a specified distance being provided. The electrostatic capacities generated between the electrostatic electrode plates of the pairs are converted into corresponding voltages e1 and e2 by electrostatic capacity detecting circuits 51 and 52. the voltage e1 is obtained earlier than e2 with respect to the same part of the fluid. The voltage e1 is delayed and compared with the following voltage e2. The result is supplied to a correlation type flow speed circuit 6, wherein the flow speed is computed from the delay time whose feedback is controlled so as to obtain the maximum correlation. Thus the flow speed of the two phase fluid 1 is obtained. the concentration of the powder body is obtained from the average value of the voltages e1 and e2. The amount of the powder body in the two phase fluid 1 is computed in a multiplying circuit 8 by using said flow speed and concentration.
JP56009724A 1981-01-27 1981-01-27 Device for measuring flow rate Pending JPS57125319A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56009724A JPS57125319A (en) 1981-01-27 1981-01-27 Device for measuring flow rate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56009724A JPS57125319A (en) 1981-01-27 1981-01-27 Device for measuring flow rate

Publications (1)

Publication Number Publication Date
JPS57125319A true JPS57125319A (en) 1982-08-04

Family

ID=11728244

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56009724A Pending JPS57125319A (en) 1981-01-27 1981-01-27 Device for measuring flow rate

Country Status (1)

Country Link
JP (1) JPS57125319A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57158517A (en) * 1981-03-26 1982-09-30 Sumitomo Metal Ind Ltd Flow rate measuring device
JPS5847216A (en) * 1981-09-16 1983-03-18 Yokogawa Hokushin Electric Corp Mass flow meter
JPS6091214A (en) * 1983-10-26 1985-05-22 Denka Consult & Eng Co Ltd Method for measuring flow rate of solid in descending stream by gravity
JPS62261018A (en) * 1986-05-07 1987-11-13 Mitsubishi Heavy Ind Ltd Powder flowmeter
FR2622002A1 (en) * 1987-10-20 1989-04-21 Neu Ets METHOD AND DEVICE FOR MEASURING A GAS-SOLID OR LIQUID-SOLID DIPHASIC FLOW RATE
GB2390683A (en) * 2002-04-06 2004-01-14 Process Tomography Ltd Flow measurement
KR101224362B1 (en) * 2008-11-06 2013-01-21 노스이스턴 유니버시티 Device for Measuring Two-phase Flow Phase Concentration, System and Method for Measuring Flow Parameters of Two-phase Flow
DE102022205583A1 (en) 2022-06-01 2023-12-07 Robert Bosch Gesellschaft mit beschränkter Haftung Method for measuring a mass flow rate of a gaseous medium

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57158517A (en) * 1981-03-26 1982-09-30 Sumitomo Metal Ind Ltd Flow rate measuring device
JPS5847216A (en) * 1981-09-16 1983-03-18 Yokogawa Hokushin Electric Corp Mass flow meter
JPS6091214A (en) * 1983-10-26 1985-05-22 Denka Consult & Eng Co Ltd Method for measuring flow rate of solid in descending stream by gravity
JPS62261018A (en) * 1986-05-07 1987-11-13 Mitsubishi Heavy Ind Ltd Powder flowmeter
FR2622002A1 (en) * 1987-10-20 1989-04-21 Neu Ets METHOD AND DEVICE FOR MEASURING A GAS-SOLID OR LIQUID-SOLID DIPHASIC FLOW RATE
GB2390683A (en) * 2002-04-06 2004-01-14 Process Tomography Ltd Flow measurement
GB2390683B (en) * 2002-04-06 2005-07-06 Process Tomography Ltd Flow measurement
KR101224362B1 (en) * 2008-11-06 2013-01-21 노스이스턴 유니버시티 Device for Measuring Two-phase Flow Phase Concentration, System and Method for Measuring Flow Parameters of Two-phase Flow
DE102022205583A1 (en) 2022-06-01 2023-12-07 Robert Bosch Gesellschaft mit beschränkter Haftung Method for measuring a mass flow rate of a gaseous medium

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