AT512463A3 - Verfahren und Vorrichtung zur Krafterfassung - Google Patents

Verfahren und Vorrichtung zur Krafterfassung Download PDF

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Publication number
AT512463A3
AT512463A3 ATA50100/2013A AT501002013A AT512463A3 AT 512463 A3 AT512463 A3 AT 512463A3 AT 501002013 A AT501002013 A AT 501002013A AT 512463 A3 AT512463 A3 AT 512463A3
Authority
AT
Austria
Prior art keywords
force
sensor
field strength
magnetic
magnetic field
Prior art date
Application number
ATA50100/2013A
Other languages
English (en)
Other versions
AT512463B1 (de
AT512463A2 (de
Original Assignee
Faculty of Electrical Engineering University of Ljubljana
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 Faculty of Electrical Engineering University of Ljubljana filed Critical Faculty of Electrical Engineering University of Ljubljana
Publication of AT512463A2 publication Critical patent/AT512463A2/de
Publication of AT512463A3 publication Critical patent/AT512463A3/de
Application granted granted Critical
Publication of AT512463B1 publication Critical patent/AT512463B1/de

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/12—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
    • G01L1/122—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress by using permanent magnets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/12—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G7/00—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G7/00—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups
    • G01G7/06—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electrostatic action
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/14—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means involving the displacement of magnets, e.g. electromagnets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/105—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by magnetically sensitive devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

Verfahren zur Messung von Kraft und davon abgeleitete Größen, wie Druck, Drehmoment, Beschleunigung oder Gewicht sowie Sensor basierend auf diesem Verfahren.Gegenstand der Erfindung ist ein Verfahren, bei welchem zumindest zwei einander gegenüberliegend angeordnete Magnete aufgrund der Wechselwirkung der Magnetfelder aufeinander in Kraftwirkung stehen. Gegen diese Kraftwirkung wirkt eine mechanisch aufgebrachte Kraft derart, dass die magnetische Kraft kompensiert wird. Somit führt die mechanische Kraft aufgrund der linearen Abhängigkeit der magnetischen Feldstärke vom Luftspalt zwischen den gegenüberliegend angeordneten Magneten über einen magnetischen Feldstärkensensor zu einem eindeutigen elektrischen Ausgangssignal. Ein geeigneter Sensor ist vorzugsweise ein Hallsensor oder einen GMR-Sensor. Bei einer Änderung der Umgebungs-Temperatur ändert sich die magnetische Wirkung, dadurch ändert sich der Abstand im Kraftgleichgewichtsfall. Die gemessene magnetische Feldstärke entspricht jedoch wieder der Amplitude der mechanischen Gegenkraft. Dadurch ergibt sich eine sehr geringe Temperaturabhängigkeit. Die Temperatur kann zudem durch Kalibrierung der Abstandsverhältnisse als zusätzliches Ausgangssignal ebenfalls anhand einer Abstandserfassung ermittelt werden.
ATA50100/2013A 2012-02-09 2013-02-08 Verfahren und Vorrichtung zur Krafterfassung AT512463B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012101081.1A DE102012101081B4 (de) 2012-02-09 2012-02-09 Verfahren und Vorrichtung zur Krafterfassung

Publications (3)

Publication Number Publication Date
AT512463A2 AT512463A2 (de) 2013-08-15
AT512463A3 true AT512463A3 (de) 2014-11-15
AT512463B1 AT512463B1 (de) 2015-02-15

Family

ID=48868247

Family Applications (1)

Application Number Title Priority Date Filing Date
ATA50100/2013A AT512463B1 (de) 2012-02-09 2013-02-08 Verfahren und Vorrichtung zur Krafterfassung

Country Status (2)

Country Link
AT (1) AT512463B1 (de)
DE (1) DE102012101081B4 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104864996B (zh) * 2015-06-03 2017-06-30 苏州桀勇不锈钢制品有限公司 一种球杆测力计
WO2020112236A1 (en) * 2018-11-30 2020-06-04 Carrier Corporation Suppression tank scale and level determination
WO2023275006A1 (en) * 2021-06-28 2023-01-05 Melexis Technologies Sa Force sensing scale with target
EP4113085B1 (de) 2021-06-28 2025-03-26 Melexis Technologies SA Kraftsensor mit ziel auf einem halbleitergehäuse
CN116754792A (zh) * 2023-05-24 2023-09-15 宁波萨瑞通讯有限公司 加速度方向判断电路及方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2842140A1 (de) * 1978-09-28 1980-04-10 Bosch Gmbh Robert Mechanisch-elektrischer druckwandler
DE2946515A1 (de) * 1979-11-17 1981-05-27 Robert Bosch Gmbh, 7000 Stuttgart Druckgeber mit hall-ic
WO1982001068A1 (en) * 1980-09-20 1982-04-01 Balcke G Electromechanical converter
DE4026855A1 (de) * 1990-08-24 1992-03-05 Siemens Ag Drucksensor
DE19703173A1 (de) * 1997-01-29 1998-07-30 Bayerische Motoren Werke Ag Beschleunigungssensor mit zwei beschleunigungsabhängig in einer Richtung relativ zueinander beweglichen Teilen
DE19942363A1 (de) * 1999-09-04 2001-04-05 Bayerische Motoren Werke Ag Induktiver Beschleunigungssensor
WO2009054724A2 (en) * 2007-10-24 2009-04-30 Magnetic Innovations Bv Speed sensor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8120655U1 (de) 1981-07-15 1982-02-18 Robert Bosch Gmbh, 7000 Stuttgart Drucksensor
DE3809887A1 (de) 1988-03-24 1989-10-05 Teves Gmbh Alfred Sensor zur messung mechanischer bewegungsgroessen
JPH02218965A (ja) 1989-02-20 1990-08-31 Iiosu:Kk 衝撃センサ
US5723789A (en) 1994-01-12 1998-03-03 Shannon; E. Paul Impact responsive sensor
FR2764693B1 (fr) 1997-06-13 1999-08-27 Jaeger Regulation Capteur de mesure de pression
US6670805B1 (en) 2000-09-22 2003-12-30 Alliant Techsystems Inc. Displacement sensor containing magnetic field sensing element between a pair of biased magnets movable as a unit
DE102004011591A1 (de) 2004-03-10 2005-09-29 Robert Bosch Gmbh Verbindungselement
SI23519A (sl) 2010-10-05 2012-04-30 UNIVERZA V LJUBLJANI, FAKULTETA ZA ELEKTROTEHNIKO Laboratorij za Mikroelektroniko Magnetni sistem za merjenje absolutne sile z izboljšano linearnostjo

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2842140A1 (de) * 1978-09-28 1980-04-10 Bosch Gmbh Robert Mechanisch-elektrischer druckwandler
DE2946515A1 (de) * 1979-11-17 1981-05-27 Robert Bosch Gmbh, 7000 Stuttgart Druckgeber mit hall-ic
WO1982001068A1 (en) * 1980-09-20 1982-04-01 Balcke G Electromechanical converter
DE4026855A1 (de) * 1990-08-24 1992-03-05 Siemens Ag Drucksensor
DE19703173A1 (de) * 1997-01-29 1998-07-30 Bayerische Motoren Werke Ag Beschleunigungssensor mit zwei beschleunigungsabhängig in einer Richtung relativ zueinander beweglichen Teilen
DE19942363A1 (de) * 1999-09-04 2001-04-05 Bayerische Motoren Werke Ag Induktiver Beschleunigungssensor
WO2009054724A2 (en) * 2007-10-24 2009-04-30 Magnetic Innovations Bv Speed sensor

Also Published As

Publication number Publication date
DE102012101081B4 (de) 2023-08-31
AT512463B1 (de) 2015-02-15
AT512463A2 (de) 2013-08-15
DE102012101081A1 (de) 2013-08-14

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Effective date: 20250208