FI913436A0 - Toejningsmaetare-transduktorsystem med spaerrkrets. - Google Patents

Toejningsmaetare-transduktorsystem med spaerrkrets.

Info

Publication number
FI913436A0
FI913436A0 FI913436A FI913436A FI913436A0 FI 913436 A0 FI913436 A0 FI 913436A0 FI 913436 A FI913436 A FI 913436A FI 913436 A FI913436 A FI 913436A FI 913436 A0 FI913436 A0 FI 913436A0
Authority
FI
Finland
Prior art keywords
transduktorsystem
toejningsmaetare
spaerrkrets
med
transduktorsystem med
Prior art date
Application number
FI913436A
Other languages
English (en)
Other versions
FI913436A (fi
Inventor
Harry E Lockery
Rolf P Haggstrom
Original Assignee
Flintab Ab
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 Flintab Ab filed Critical Flintab Ab
Publication of FI913436A0 publication Critical patent/FI913436A0/fi
Publication of FI913436A publication Critical patent/FI913436A/fi

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
    • G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
    • G01G3/1402—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • G01G3/1408—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric
    • 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
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • G01L1/2268—Arrangements for correcting or for compensating unwanted effects

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Force In General (AREA)
FI913436A 1990-07-18 1991-07-16 Toejningsmaetare-transduktorsystem med spaerrkrets. FI913436A (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55366390A 1990-07-18 1990-07-18
US07/670,397 US5135062A (en) 1990-07-18 1991-03-15 Strain gage transducer system with guard circuit

Publications (2)

Publication Number Publication Date
FI913436A0 true FI913436A0 (fi) 1991-07-16
FI913436A FI913436A (fi) 1992-01-19

Family

ID=27070401

Family Applications (1)

Application Number Title Priority Date Filing Date
FI913436A FI913436A (fi) 1990-07-18 1991-07-16 Toejningsmaetare-transduktorsystem med spaerrkrets.

Country Status (5)

Country Link
US (1) US5135062A (fi)
EP (1) EP0467562A3 (fi)
CA (1) CA2046787A1 (fi)
FI (1) FI913436A (fi)
NO (1) NO912764L (fi)

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US5392027A (en) * 1991-11-04 1995-02-21 Detek Security Systems, Inc. Full bridge strain gage deflection sensor
US5841077A (en) * 1995-12-01 1998-11-24 Kolaci; Rudolph J. Digital load cell assembly
DE19610092A1 (de) * 1996-03-15 1997-09-18 Focke & Co Verfahren und Einrichtung zum Ausrichten von Maschinen
US7663607B2 (en) 2004-05-06 2010-02-16 Apple Inc. Multipoint touchscreen
GB0117867D0 (en) * 2001-07-21 2001-09-12 Meritor Light Vehicle Sys Ltd Load determining device
CN108563366B (zh) 2006-06-09 2022-01-25 苹果公司 触摸屏液晶显示器
US9710095B2 (en) 2007-01-05 2017-07-18 Apple Inc. Touch screen stack-ups
EP2156150B1 (de) * 2007-06-07 2019-03-13 Mettler-Toledo GmbH Verfahren zur zustandsüberwachung einer kraftmessvorrichtung, kraftmessvorrichtung und kraftmessmodul
WO2008148590A1 (de) * 2007-06-07 2008-12-11 Mettler-Toledo Ag Mehrfach-kraftmessvorrichtung, kraftmessmodul und verfahren zur zustandsüberwachung
CA2644875C (en) * 2008-11-25 2013-02-26 International Road Dynamics Inc. Measurement of wheel and/or axle load of road vehicles
JP2010134835A (ja) * 2008-12-08 2010-06-17 Renesas Electronics Corp 地図描画装置及び地図データの表示制御方法
US8804056B2 (en) 2010-12-22 2014-08-12 Apple Inc. Integrated touch screens
JP5925570B2 (ja) * 2012-04-13 2016-05-25 大和製衡株式会社 計量装置
DE112013002288T5 (de) 2012-05-03 2015-04-16 Apple Inc. Momentkompensierter Biegebalkensensor zur Lastmessung auf einer Biegebalken-gestützten Plattform
US9983715B2 (en) 2012-12-17 2018-05-29 Apple Inc. Force detection in touch devices using piezoelectric sensors
WO2014149023A1 (en) 2013-03-15 2014-09-25 Rinand Solutions Llc Force sensing of inputs through strain analysis
CN110134283B (zh) 2013-10-28 2022-10-11 苹果公司 基于压电的力感测
AU2015100011B4 (en) * 2014-01-13 2015-07-16 Apple Inc. Temperature compensating transparent force sensor
US9851845B2 (en) 2014-08-12 2017-12-26 Apple Inc. Temperature compensation for transparent force sensors
US10126861B2 (en) 2015-05-08 2018-11-13 Synaptics Incorporated Force sensor substrate
US9612170B2 (en) 2015-07-21 2017-04-04 Apple Inc. Transparent strain sensors in an electronic device
US10055048B2 (en) 2015-07-31 2018-08-21 Apple Inc. Noise adaptive force touch
US9874965B2 (en) 2015-09-11 2018-01-23 Apple Inc. Transparent strain sensors in an electronic device
US9886118B2 (en) 2015-09-30 2018-02-06 Apple Inc. Transparent force sensitive structures in an electronic device
US10006820B2 (en) 2016-03-08 2018-06-26 Apple Inc. Magnetic interference avoidance in resistive sensors
US10107873B2 (en) 2016-03-10 2018-10-23 Allegro Microsystems, Llc Electronic circuit for compensating a sensitivity drift of a hall effect element due to stress
US10209830B2 (en) 2016-03-31 2019-02-19 Apple Inc. Electronic device having direction-dependent strain elements
US10452211B2 (en) 2016-05-27 2019-10-22 Synaptics Incorporated Force sensor with uniform response in an axis
US10162017B2 (en) 2016-07-12 2018-12-25 Allegro Microsystems, Llc Systems and methods for reducing high order hall plate sensitivity temperature coefficients
US10133418B2 (en) 2016-09-07 2018-11-20 Apple Inc. Force sensing in an electronic device using a single layer of strain-sensitive structures
US10444091B2 (en) 2017-04-11 2019-10-15 Apple Inc. Row column architecture for strain sensing
US10309846B2 (en) 2017-07-24 2019-06-04 Apple Inc. Magnetic field cancellation for strain sensors
US10520559B2 (en) 2017-08-14 2019-12-31 Allegro Microsystems, Llc Arrangements for Hall effect elements and vertical epi resistors upon a substrate
WO2020011319A1 (en) * 2018-07-09 2020-01-16 Linak A/S An electronic circuit for a weighing system with one or more load cells
US10782818B2 (en) 2018-08-29 2020-09-22 Apple Inc. Load cell array for detection of force input to an electronic device enclosure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3698495A (en) * 1970-09-25 1972-10-17 Norman H Vogt Electrical weight indicating device
US4205556A (en) * 1979-02-12 1980-06-03 Rockwell International Corporation Circuitry for strain sensitive apparatus
US4771639A (en) * 1987-09-02 1988-09-20 Yokogawa Electric Corporation Semiconductor pressure sensor
US4945762A (en) * 1989-01-24 1990-08-07 Sensym, Inc. Silicon sensor with trimmable wheatstone bridge

Also Published As

Publication number Publication date
EP0467562A2 (en) 1992-01-22
EP0467562A3 (en) 1993-03-03
NO912764L (no) 1992-01-20
CA2046787A1 (en) 1992-01-19
NO912764D0 (no) 1991-07-15
US5135062A (en) 1992-08-04
FI913436A (fi) 1992-01-19

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Legal Events

Date Code Title Description
FD Application lapsed