DK0408084T3 - Speed detector - Google Patents

Speed detector

Info

Publication number
DK0408084T3
DK0408084T3 DK90113623.4T DK90113623T DK0408084T3 DK 0408084 T3 DK0408084 T3 DK 0408084T3 DK 90113623 T DK90113623 T DK 90113623T DK 0408084 T3 DK0408084 T3 DK 0408084T3
Authority
DK
Denmark
Prior art keywords
threshold
rbb
rba
sensors
oscillating
Prior art date
Application number
DK90113623.4T
Other languages
Danish (da)
Inventor
Horst Prof Dr Ziegler
Original Assignee
Hydrometer Gmbh
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 Hydrometer Gmbh filed Critical Hydrometer Gmbh
Application granted granted Critical
Publication of DK0408084T3 publication Critical patent/DK0408084T3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/488—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors
    • 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
    • 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
    • G01F1/08—Adjusting, correcting or compensating means therefor
    • 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
    • G01F15/02—Compensating or correcting for variations in pressure, density or temperature
    • G01F15/022—Compensating or correcting for variations in pressure, density or temperature using electrical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/489—Digital circuits therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

Rotation detector having a rotor (R1) with different attenuation regions (RBA, RBB) about which sensors (1, 2, 3, 4) are arranged which contain an oscillating circuit whose oscillating frequencies are counted in each case after a short excitation, and from this a comparison with a discriminator threshold is used to determine from the undershoot or overshoot of said threshold the respectively obtaining attenuation, and thus the rotor position, and metering signals are transmitted accordingly to a counter. The discriminator threshold is obtained in each case by summing the numbers of oscillations of sensors (1, 3; 2, 4) which are arranged in a complementary fashion with respect to the attenuation regions (RBA, RBB). A monitoring circuit for the oscillating circuits is provided, as are a redundant sensor arrangement and signal evaluation. The rotation detector is particularly suitable for battery-operated supply meters. <IMAGE>
DK90113623.4T 1989-07-14 1990-07-16 Speed detector DK0408084T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3923398A DE3923398C1 (en) 1989-07-14 1989-07-14

Publications (1)

Publication Number Publication Date
DK0408084T3 true DK0408084T3 (en) 1993-05-17

Family

ID=6385085

Family Applications (1)

Application Number Title Priority Date Filing Date
DK90113623.4T DK0408084T3 (en) 1989-07-14 1990-07-16 Speed detector

Country Status (4)

Country Link
EP (1) EP0408084B1 (en)
AT (1) ATE88574T1 (en)
DE (1) DE3923398C1 (en)
DK (1) DK0408084T3 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137695C2 (en) * 1991-11-15 1994-12-01 Texas Instruments Deutschland Sensor arrangement for determining the state of motion of a rotor
DE4301966C1 (en) * 1993-01-26 1994-03-31 Techem Gmbh Rotation detector, esp. for vol. measurement device - contains rotor with constant electromagnetic damping and variable damping region, associated sensors
DE4446918A1 (en) * 1994-12-28 1996-07-04 Spanner Pollux Gmbh Inductive sensor for measuring the speed or direction of rotation of a shaft
DE19619197A1 (en) * 1996-05-11 1997-11-13 Schlafhorst & Co W Angular position and-or angular velocity measuring device, especially for textile machine
DE19725806C2 (en) * 1997-06-18 2000-09-28 Texas Instruments Deutschland Rotation detector
DE19738841A1 (en) * 1997-09-05 1999-03-11 Hella Kg Hueck & Co Inductive angle sensor
DE19745236C2 (en) * 1997-10-13 2000-12-21 Texas Instruments Deutschland Detector for determining the speed and direction of rotation
SE519954C2 (en) 2000-08-09 2003-04-29 Elster Messtechnik Gmbh Apparatus and method for senseless contact of a rotor state of rotation
DE10159110A1 (en) * 2001-12-01 2003-06-12 Hella Kg Hueck & Co Inductive angle or position sensor for use in safety critical motor vehicle applications, has redundant receiver coil groups connected to a single evaluation circuit with their signal processed in a multiplexed manner
DE10238405B4 (en) * 2002-08-22 2005-12-22 Techem Development Gmbh Evaluation circuit for resonant circuit sensors
DE102008018099A1 (en) 2008-04-09 2009-11-05 Prof. Dr. Horst Ziegler und Partner GbR (vertretungsberechtigter Gesellschafter: Prof. Dr. Horst Ziegler 33100 Paderborn) Arrangement for detecting a rotation of a rotary member
DE102010005231A1 (en) 2010-01-21 2011-07-28 M & FC Holding LLC, N.C. Method for detecting the rotations of a rotor
DE102010018271B4 (en) 2010-04-26 2012-12-20 Prof. Dr. Horst Ziegler & Partner GbR (vertretungsberechtigter Gesellschafter: Dipl.-Ing. F. W. Ziegler, 70499 Stuttgart) Technique for detecting a rotational movement
US10162038B2 (en) * 2014-07-09 2018-12-25 Stmicroelectronics S.R.L. Method of interfacing a LC sensor and related system
US10168443B2 (en) 2014-11-17 2019-01-01 Stmicroelectronics S.R.L. System for interfacing an LC sensor, related method and computer program product
FR3040483B1 (en) * 2015-08-27 2017-08-18 Sagemcom Energy & Telecom Sas DEVICE FOR COUNTING TIRES OF A WHEEL USING A COIL AND COUNTER EQUIPPED WITH SAID COUNTER DEVICE
FR3047066B1 (en) * 2016-01-25 2018-02-16 Sagemcom Energy & Telecom Sas METHOD FOR COUNTING TIRES OF A WHEEL
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
DE102018105590B4 (en) 2018-03-12 2023-06-22 Balluff Gmbh Inductive sensor and method of operating an inductive sensor
DE102018216802A1 (en) * 2018-09-28 2020-04-02 Robert Bosch Gmbh Device and method for volume flow measurement of a flowing medium
US11796577B2 (en) 2020-09-09 2023-10-24 Ningbo Aura Semiconductor Co., Limited Making determination of inductance-change immune to changes in environmental conditions

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1233643B (en) * 1965-02-26 1967-02-02 Licentia Gmbh Tachometer generator for direction of rotation dependent display
US4331917A (en) * 1979-12-13 1982-05-25 Caterpillar Tractor Co. Speed and direction sensing circuit
JPH0124264B2 (en) * 1980-02-04 1989-05-10 Caterpillar Inc
DE3213602A1 (en) * 1982-04-13 1983-10-20 Siemens AG, 1000 Berlin und 8000 München Electronic device
DE3611862A1 (en) * 1986-04-09 1987-10-15 Steudler Gmbh & Co Kg A INDUCTIVE PROXIMITY SENSOR

Also Published As

Publication number Publication date
DE3923398C1 (en) 1991-01-03
EP0408084A1 (en) 1991-01-16
ATE88574T1 (en) 1993-05-15
EP0408084B1 (en) 1993-04-21

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