NO912764L - Transduktorsystem til maaling av mekanisk spenning. - Google Patents

Transduktorsystem til maaling av mekanisk spenning.

Info

Publication number
NO912764L
NO912764L NO91912764A NO912764A NO912764L NO 912764 L NO912764 L NO 912764L NO 91912764 A NO91912764 A NO 91912764A NO 912764 A NO912764 A NO 912764A NO 912764 L NO912764 L NO 912764L
Authority
NO
Norway
Prior art keywords
transductor
measuring mechanical
mechanical voltage
voltage
measuring
Prior art date
Application number
NO91912764A
Other languages
English (en)
Other versions
NO912764D0 (no
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 NO912764D0 publication Critical patent/NO912764D0/no
Publication of NO912764L publication Critical patent/NO912764L/no

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)
NO91912764A 1990-07-18 1991-07-15 Transduktorsystem til maaling av mekanisk spenning. NO912764L (no)

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
NO912764D0 NO912764D0 (no) 1991-07-15
NO912764L true NO912764L (no) 1992-01-20

Family

ID=27070401

Family Applications (1)

Application Number Title Priority Date Filing Date
NO91912764A NO912764L (no) 1990-07-18 1991-07-15 Transduktorsystem til maaling av mekanisk spenning.

Country Status (5)

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

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
KR20110058895A (ko) 2006-06-09 2011-06-01 애플 인크. 터치 스크린 액정 디스플레이
US9710095B2 (en) 2007-01-05 2017-07-18 Apple Inc. Touch screen stack-ups
AU2008258813B2 (en) * 2007-06-07 2013-10-10 Mettler-Toledo Gmbh Multiple-force-measuring device, force-measuring module, and method for status monitoring
BRPI0812225B1 (pt) * 2007-06-07 2018-10-30 Mettler Toledo Ag método de monitorar a condição de um dispositivo de medição de força, dispositivo de medição de força e módulo de medição de força.
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
US10088937B2 (en) 2012-05-03 2018-10-02 Apple Inc. Touch input device including a moment compensated bending sensor for load measurement on platform supported by bending beams
WO2014098946A1 (en) 2012-12-17 2014-06-26 Changello Enterprise Llc 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
CN112384767B (zh) * 2018-07-09 2023-06-06 利纳克有限公司 具有一个或多个负荷传感器的称重系统的电子电路
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
FI913436A0 (fi) 1991-07-16
EP0467562A3 (en) 1993-03-03
FI913436A (fi) 1992-01-19
EP0467562A2 (en) 1992-01-22
CA2046787A1 (en) 1992-01-19
NO912764D0 (no) 1991-07-15
US5135062A (en) 1992-08-04

Similar Documents

Publication Publication Date Title
NO912764D0 (no) Transduktorsystem til maaling av mekanisk spenning.
FI923931A0 (fi) Anordning foer granskning av insidan av en foergrenad roerlinje.
NL193256B (nl) Sensorsysteem.
NO905160D0 (no) System for aa detektere inntrengning.
DE69131703D1 (de) AV-System
DE59101322D1 (de) Inkrementales Längenmesssystem.
DE59005389D1 (de) Kompensationswaage.
FI904346A0 (fi) System foer behandling av plantor.
DE69201917D1 (de) Hochauflösendes Spektroskopsystem.
DE69111681D1 (de) Elektronenoptische Messeinrichtung.
FI915460A0 (fi) Foerfarande foer framstaellning av dietrar.
DE69020425D1 (de) Oberflächenpotentialmesssystem.
FI915627A (fi) System foer detektion av ramfel.
DE69126097D1 (de) Polarisationsmesssystem
DE69108383D1 (de) Fahrtreppesystem.
FI901636A0 (fi) Elektrodsystem foer voltametriska maetningar.
BR9106560A (pt) Aparelho de pesagem.
DE59005180D1 (de) Wegmesssystem.
DE69105287D1 (de) Mehrkanaliger Elektrostatiksensor.
DE59007551D1 (de) Interferometrisches Messsystem.
DE59103792D1 (de) Gekapseltes Längenmesssystem.
FI923866A (fi) Foerfarande foer framstaellning av 1-hydroxialkyl-1-nitro-5 imidazoler
NO902033L (no) Test-adapter for narkosesystem.
FI900301A (fi) Foerfarande foer framstaellning av eten-propen-kopolymerer i partikelform.
FI915645A0 (fi) System foer sjaelvframstaellning av filtercigarretter.