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GB1474800A - Turbine type flowmeter - Google Patents

Turbine type flowmeter

Info

Publication number
GB1474800A
GB1474800A GB3360974A GB3360974A GB1474800A GB 1474800 A GB1474800 A GB 1474800A GB 3360974 A GB3360974 A GB 3360974A GB 3360974 A GB3360974 A GB 3360974A GB 1474800 A GB1474800 A GB 1474800A
Authority
GB
United Kingdom
Prior art keywords
core
legs
wound
divided
pick
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.)
Expired
Application number
GB3360974A
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.)
Hitachi Ltd
Original Assignee
Tokico 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 Tokico Ltd filed Critical Tokico Ltd
Publication of GB1474800A publication Critical patent/GB1474800A/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
    • G01F1/10—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 using rotating vanes with axial admission
    • G01F1/115—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 using rotating vanes with axial admission with magnetic or electromagnetic coupling to the indicating device

Landscapes

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

Abstract

1474800 Measuring fluid-flow-rate electrically TOKICO Ltd 30 July 1974 [13 Aug 1973] 33609/74 Heading G1N The speed pick-up 17 for a turbine flowmeter has a core 18 of which the lower part is divided into three leg parts 18a, 18b, 18c and on which a single coil 19 is wound. Alternatively Fig. 3 the core is divided into three legs 31a, b, c, on each of which a respective coil 32a, b, c is wound. Each time a blade 14 of the turbine rotor passes one of the legs 18a, b, c or 31a, b, c of the core it affects the quality factor of the oscillator resonance circuit 21 in which the pick-up is connected whereby an amplitude-modulated signal is produced from the circuit. This signal is detected 22, filtered, amplified and shaped into a constant amplitude rectangular waveform of which the pulses are counted at 26.
GB3360974A 1973-08-13 1974-07-30 Turbine type flowmeter Expired GB1474800A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9057473A JPS5039578A (en) 1973-08-13 1973-08-13

Publications (1)

Publication Number Publication Date
GB1474800A true GB1474800A (en) 1977-05-25

Family

ID=14002184

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3360974A Expired GB1474800A (en) 1973-08-13 1974-07-30 Turbine type flowmeter

Country Status (4)

Country Link
JP (1) JPS5039578A (en)
DE (1) DE2438000A1 (en)
GB (1) GB1474800A (en)
IT (1) IT1017782B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9109931B2 (en) 2009-04-23 2015-08-18 Elster Metering Limited Inductive fluid flow meter having an inductive target provided on the shaft
CN110044425A (en) * 2019-05-23 2019-07-23 开封仪表有限公司 A kind of run-in index turbine flow transducer
CN111721964A (en) * 2020-07-09 2020-09-29 南京智鹤电子科技有限公司 Flow rate acquisition circuit, fuel metering circuit and fuel meter

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5015155A (en) * 1973-06-11 1975-02-18
JPS5417891Y2 (en) * 1977-04-05 1979-07-07
DE3112959C2 (en) * 1981-04-01 1984-01-26 Hydrotechnik Gmbh, 6250 Limburg Turbine runner of a flow meter
JPS60236619A (en) * 1985-04-17 1985-11-25 東芝熱器具株式会社 Air pot
JPH0240914Y2 (en) * 1985-08-01 1990-10-31
JPH0339154Y2 (en) * 1985-11-22 1991-08-19
JPS6355117U (en) * 1986-09-30 1988-04-13
CN102095465B (en) * 2010-12-03 2013-05-08 池州埃美柯水表铸造有限公司 Water meter core
DE102018216802A1 (en) * 2018-09-28 2020-04-02 Robert Bosch Gmbh Device and method for volume flow measurement of a flowing medium

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829876Y2 (en) * 1978-08-16 1983-06-30 三菱電機株式会社 push button switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9109931B2 (en) 2009-04-23 2015-08-18 Elster Metering Limited Inductive fluid flow meter having an inductive target provided on the shaft
GB2470104B (en) * 2009-04-23 2018-02-07 Elster Water Metering Ltd Fluid flow meter
CN110044425A (en) * 2019-05-23 2019-07-23 开封仪表有限公司 A kind of run-in index turbine flow transducer
CN111721964A (en) * 2020-07-09 2020-09-29 南京智鹤电子科技有限公司 Flow rate acquisition circuit, fuel metering circuit and fuel meter

Also Published As

Publication number Publication date
JPS5039578A (en) 1975-04-11
DE2438000A1 (en) 1975-03-13
IT1017782B (en) 1977-08-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee