DK529889A - INDUCTIVE SPEEDS FOR FLANGE WHEEL FLOW METERS - Google Patents

INDUCTIVE SPEEDS FOR FLANGE WHEEL FLOW METERS

Info

Publication number
DK529889A
DK529889A DK529889A DK529889A DK529889A DK 529889 A DK529889 A DK 529889A DK 529889 A DK529889 A DK 529889A DK 529889 A DK529889 A DK 529889A DK 529889 A DK529889 A DK 529889A
Authority
DK
Denmark
Prior art keywords
vane
rotation
coil
inductive
speeds
Prior art date
Application number
DK529889A
Other languages
Danish (da)
Other versions
DK529889D0 (en
Inventor
Bruhin Leo
Original Assignee
Gas & Wassermesserfab Ag
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 Gas & Wassermesserfab Ag filed Critical Gas & Wassermesserfab Ag
Publication of DK529889D0 publication Critical patent/DK529889D0/en
Publication of DK529889A publication Critical patent/DK529889A/en

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
    • 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
    • G01F1/06—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 tangential admission
    • G01F1/075—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 tangential admission with magnetic or electromagnetic coupling to the indicating device
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/06—Indicating or recording devices
    • G01F15/068—Indicating or recording devices with electrical means

Abstract

With this rotation sensor the rotational speed and direction of rotation of a vane-type flow meter can be measured in a virtually non-interacting fashion. Three coils (La, Lb, Lc) are provided for this purpose, which are arranged concentrically around the axis of rotation of the vane and are connected in parallel via a capacitor (10, 11, 12) in each case. The oscillating circuits formed in this way are simultaneously intermittently excited in each case only so strongly that when rotating past a coil a damping element fastened to the vane can increase only the frequency of the voltage of the coil concerned by a small amount. The coil voltages (Ua, Ub, Uc) are supplied to an evaluation circuit (14, 15, 16), by means of which the rotational speed and direction of rotation of the vane are determined from the difference between the frequencies of the damped and undamped coils. <IMAGE>
DK529889A 1988-10-27 1989-10-25 INDUCTIVE SPEEDS FOR FLANGE WHEEL FLOW METERS DK529889A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH401788 1988-10-27

Publications (2)

Publication Number Publication Date
DK529889D0 DK529889D0 (en) 1989-10-25
DK529889A true DK529889A (en) 1990-04-28

Family

ID=4268259

Family Applications (1)

Application Number Title Priority Date Filing Date
DK529889A DK529889A (en) 1988-10-27 1989-10-25 INDUCTIVE SPEEDS FOR FLANGE WHEEL FLOW METERS

Country Status (4)

Country Link
EP (1) EP0370174B1 (en)
AT (1) ATE85425T1 (en)
DE (1) DE58903449D1 (en)
DK (1) DK529889A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664973B1 (en) * 1990-07-20 1992-10-23 Schlumberger Ind Sa DEVICE FOR DETECTING THE ROTATION OF A ROTATING ELEMENT SUCH AS THE TURBINE OF A WATER METER.
DE4446918A1 (en) * 1994-12-28 1996-07-04 Spanner Pollux Gmbh Inductive sensor for measuring the speed or direction of rotation of a shaft
DE19538163C1 (en) * 1995-10-13 1997-03-27 Wehrle E Gmbh Rotation rate and rotation direction detection method e.g. for water meter
DE29906448U1 (en) * 1999-04-12 1999-08-12 Haar Maschbau Alfons Sensor for the contactless measurement of the rotation of a rotor in a liquid flow meter
SE519954C2 (en) * 2000-08-09 2003-04-29 Elster Messtechnik Gmbh Apparatus and method for senseless contact of a rotor state of rotation
DE10352251B4 (en) * 2003-11-08 2019-10-24 Elster Messtechnik Gmbh Device for guiding and positioning electrical components
GB2429118A (en) * 2005-07-26 2007-02-14 Sensor Technology Ltd Rotary signal coupler having inductive and capacitive elements in series
AT510531A1 (en) * 2010-10-05 2012-04-15 Kral Ag FLOW MEASURING DEVICE
DE202013001852U1 (en) * 2013-02-27 2014-02-28 Christian Gradischnik Device for detecting a flow
DE102013215604A1 (en) * 2013-08-07 2015-02-12 BSH Bosch und Siemens Hausgeräte GmbH Flow meter, rotor and water-conducting household appliance
CN107747984B (en) * 2017-10-27 2019-11-19 深圳友讯达科技股份有限公司 Reference voltage modification method and device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996800A (en) * 1974-05-17 1976-12-14 Combustion Engineering, Inc. Turbine meter
JPS54141166A (en) * 1978-04-25 1979-11-02 Toukiyouto Water meter
DE2943184A1 (en) * 1979-10-25 1981-05-07 AOA Apparatebau Gauting GmbH, 8035 Gauting Driven wheel fluid flow meter - has inductive speed measurement consisting of sensors and elements of different magnetic resistance
EP0029336A1 (en) * 1979-11-15 1981-05-27 Britax Vega Limited Improvements in or relating to flowmeters
DE3611862A1 (en) * 1986-04-09 1987-10-15 Steudler Gmbh & Co Kg A INDUCTIVE PROXIMITY SENSOR
DE3642678A1 (en) * 1986-12-13 1988-06-16 Bosch Gmbh Robert MEASURING DEVICE FOR TURNING ANGLE AND / OR TURNING SPEED

Also Published As

Publication number Publication date
DK529889D0 (en) 1989-10-25
EP0370174B1 (en) 1993-02-03
ATE85425T1 (en) 1993-02-15
DE58903449D1 (en) 1993-03-18
EP0370174A1 (en) 1990-05-30

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment
AHB Application shelved due to non-payment