DK0408084T3 - Speed detector - Google Patents
Speed detectorInfo
- 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
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>
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)
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)
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 |
-
1989
- 1989-07-14 DE DE3923398A patent/DE3923398C1/de not_active Expired - Lifetime
-
1990
- 1990-07-16 DK DK90113623.4T patent/DK0408084T3/en active
- 1990-07-16 EP EP90113623A patent/EP0408084B1/en not_active Expired - Lifetime
- 1990-07-16 AT AT90113623T patent/ATE88574T1/en not_active IP Right Cessation
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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