ES2006169A6 - Circuit for operating a magneto-elastic sensor. - Google Patents

Circuit for operating a magneto-elastic sensor.

Info

Publication number
ES2006169A6
ES2006169A6 ES8701783A ES8701783A ES2006169A6 ES 2006169 A6 ES2006169 A6 ES 2006169A6 ES 8701783 A ES8701783 A ES 8701783A ES 8701783 A ES8701783 A ES 8701783A ES 2006169 A6 ES2006169 A6 ES 2006169A6
Authority
ES
Spain
Prior art keywords
circuit
sensor
magneto
measured
operating
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
ES8701783A
Other languages
Spanish (es)
Inventor
Klaus Dobler
Hansjorg Hachtel
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of ES2006169A6 publication Critical patent/ES2006169A6/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/243—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the phase or frequency of AC
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/023—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring distance between sensor and object

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

Circuit for operating a magnoelastic sensor, which decreases the dependence of the sensor signal (34) on the distance between the sensor coil (16) and object to be measured (10). The sensor coil (16) is complemented with a capacitor (30) and an attenuating resistor (32) to form an oscillating circuit with adjustable attenuation. By a suitable choice of the resistance of the attenuating resistor (32), the inductivity of the sensor coil (16), the capacitance of the capacitor (30), as well as of the frequency (f) of the power source (20) required for operation, the circuit can be tuned in such a manner that the distance (14) between the sensor coil (16) and the object to be measured (10) has virtually no longer any effect on the sensor signal (34). The circuit facilitates operation of a magneto-elastic sensor, in particular determination of the state of tension of a moving object to be measured.
ES8701783A 1986-06-18 1987-06-17 Circuit for operating a magneto-elastic sensor. Expired ES2006169A6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863620412 DE3620412A1 (en) 1986-06-18 1986-06-18 CIRCUIT ARRANGEMENT FOR OPERATING A MAGNETOELASTIC SENSOR

Publications (1)

Publication Number Publication Date
ES2006169A6 true ES2006169A6 (en) 1989-04-16

Family

ID=6303211

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8701783A Expired ES2006169A6 (en) 1986-06-18 1987-06-17 Circuit for operating a magneto-elastic sensor.

Country Status (6)

Country Link
EP (1) EP0310606A1 (en)
JP (1) JPH01503000A (en)
KR (1) KR880701368A (en)
DE (1) DE3620412A1 (en)
ES (1) ES2006169A6 (en)
WO (1) WO1987007941A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4200871C1 (en) * 1992-01-15 1993-05-06 Wolfgang 8045 Ismaning De Drahm Determn. of mechanical stress conditions of measuring tubes of flow meter
US20030062889A1 (en) 1996-12-12 2003-04-03 Synaptics (Uk) Limited Position detector
WO2000033244A2 (en) 1998-11-27 2000-06-08 Synaptics (Uk) Limited Position sensor
US6249234B1 (en) 1994-05-14 2001-06-19 Absolute Sensors Limited Position detector
US6788221B1 (en) 1996-06-28 2004-09-07 Synaptics (Uk) Limited Signal processing apparatus and method
EP0985132B1 (en) 1997-05-28 2005-11-09 Synaptics (UK) Limited Method of and wire bonding apparatus for manufacturing a transducer
GB9720954D0 (en) 1997-10-02 1997-12-03 Scient Generics Ltd Commutators for motors
GB9721891D0 (en) 1997-10-15 1997-12-17 Scient Generics Ltd Symmetrically connected spiral transducer
GB9811151D0 (en) 1998-05-22 1998-07-22 Scient Generics Ltd Rotary encoder
US7019672B2 (en) 1998-12-24 2006-03-28 Synaptics (Uk) Limited Position sensor
EP1412912B1 (en) 2001-05-21 2008-06-18 Synaptics (UK) Limited Position sensor
GB2403017A (en) 2002-03-05 2004-12-22 Synaptics Position sensor
EP1509833A2 (en) 2002-06-05 2005-03-02 Synaptics (UK) Limited Signal transfer method and apparatus
GB0317370D0 (en) 2003-07-24 2003-08-27 Synaptics Uk Ltd Magnetic calibration array
GB0319945D0 (en) 2003-08-26 2003-09-24 Synaptics Uk Ltd Inductive sensing system
EP2145158B1 (en) 2007-05-10 2018-03-07 Cambridge Integrated Circuits Limited Transducer
DE102010005550A1 (en) 2010-01-22 2011-07-28 Christian-Albrechts-Universität zu Kiel, 24118 Method for determining mechanical properties of magnetostrictive materials
GB2488389C (en) 2010-12-24 2018-08-22 Cambridge Integrated Circuits Ltd Position sensing transducer
GB2503006B (en) 2012-06-13 2017-08-09 Cambridge Integrated Circuits Ltd Position sensing transducer
DE102018102380A1 (en) 2018-02-02 2019-08-08 Schaeffler Technologies AG & Co. KG Electromechanical actuator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3417893A1 (en) * 1984-05-14 1985-07-18 Daimler-Benz Ag, 7000 Stuttgart Arrangement for the contactless detection or the contactless measurement of mechanical stress states of machine parts

Also Published As

Publication number Publication date
JPH01503000A (en) 1989-10-12
EP0310606A1 (en) 1989-04-12
WO1987007941A1 (en) 1987-12-30
DE3620412A1 (en) 1987-12-23
KR880701368A (en) 1988-07-26

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000301