DE3068622D1 - Parallel beam scales with a parallelogram of unitary construction - Google Patents

Parallel beam scales with a parallelogram of unitary construction

Info

Publication number
DE3068622D1
DE3068622D1 DE8080401634T DE3068622T DE3068622D1 DE 3068622 D1 DE3068622 D1 DE 3068622D1 DE 8080401634 T DE8080401634 T DE 8080401634T DE 3068622 T DE3068622 T DE 3068622T DE 3068622 D1 DE3068622 D1 DE 3068622D1
Authority
DE
Germany
Prior art keywords
parallelogram
load
parallel beam
unitary construction
uprights
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
DE8080401634T
Other languages
English (en)
Inventor
Jacques Fernand Langlais
Jean-Claude Valadier
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.)
Testut Aequitas SA
Original Assignee
Testut Aequitas SA
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 Testut Aequitas SA filed Critical Testut Aequitas SA
Application granted granted Critical
Publication of DE3068622D1 publication Critical patent/DE3068622D1/de
Expired legal-status Critical Current

Links

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
    • G01L1/20—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
    • G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • G01L1/2243—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being parallelogram-shaped
    • 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
    • G01G3/1412—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being parallelogram shaped
    • 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
    • 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
    • G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • G01L1/2231—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being disc- or ring-shaped, adapted for measuring a force along a single direction
    • G01L1/2237—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being disc- or ring-shaped, adapted for measuring a force along a single direction the direction being perpendicular to the central axis

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measurement Of Force In General (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Circuits Of Receivers In General (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Tents Or Canopies (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
DE8080401634T 1979-11-16 1980-11-14 Parallel beam scales with a parallelogram of unitary construction Expired DE3068622D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7928300A FR2469701B1 (fr) 1979-11-16 1979-11-16 Recepteur de charge a parallelogramme realise en une seule piece et applicable notamment aux balances a usage commercial

Publications (1)

Publication Number Publication Date
DE3068622D1 true DE3068622D1 (en) 1984-08-23

Family

ID=9231772

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080401634T Expired DE3068622D1 (en) 1979-11-16 1980-11-14 Parallel beam scales with a parallelogram of unitary construction

Country Status (9)

Country Link
US (1) US4344496A (de)
EP (1) EP0029776B1 (de)
JP (1) JPS5686319A (de)
AT (1) ATE8536T1 (de)
AU (1) AU6426880A (de)
CA (1) CA1144778A (de)
DE (1) DE3068622D1 (de)
FR (1) FR2469701B1 (de)
ZA (1) ZA807017B (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4558600A (en) * 1982-03-18 1985-12-17 Setra Systems, Inc. Force transducer
US4448085A (en) * 1981-05-19 1984-05-15 Setra Systems, Inc. Force transducer
US4899600A (en) * 1981-05-19 1990-02-13 Setra Systems, Inc. Compact force transducer with mechanical motion amplification
FR2523304A1 (fr) * 1982-03-09 1983-09-16 Testut Aequitas Dynamometre a poutre de flexion
EP0094290A3 (de) * 1982-05-11 1986-02-12 Testut-Aequitas Lastenaufnehmer mit deformierbarem Parallelogramm
FR2540243B2 (fr) * 1983-02-01 1986-07-11 Testut Aequitas Recepteur de charge a parallelogramme deformable
FR2528575A1 (fr) * 1982-06-15 1983-12-16 Cormier Pese Bebe Capteur de force, notamment pour le pesage
US4583607A (en) * 1984-06-07 1986-04-22 Pitney Bowes Inc. Load cell assembly with adjustable stiffness
DE8716117U1 (de) * 1987-12-05 1989-04-06 Sartorius GmbH, 3400 Göttingen Oberschalige elektronische Hebelwaage
US5773729A (en) * 1996-09-17 1998-06-30 Ncr Corporation Overload protected loadcell
CA2209116A1 (en) * 1997-06-27 1998-12-27 Tecnovir International Inc. Precipitation measuring system
US20080006450A1 (en) * 2006-07-05 2008-01-10 Simons Gerald S Load Cell Having A Base With A Curved Surface
KR100972117B1 (ko) * 2008-05-09 2010-07-23 (주)인벤티오 하중 측정용 탄성체 및 이를 이용한 비접촉 하중 측정 장치
DE102012210021A1 (de) * 2012-06-14 2013-12-19 Tecsis Gmbh Kraftsensor mit einer Sensorplatte mit lokalen Unterschieden der Steifigkeit
US9915572B2 (en) * 2013-09-29 2018-03-13 Apple Inc. Force sensing compliant enclosure

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3049004A (en) * 1958-10-16 1962-08-14 United States Steel Corp Mill-roll chock with load-responsive element
US3180139A (en) * 1960-10-12 1965-04-27 Soderholm Arne Force transducers
GB1088873A (en) * 1965-02-08 1967-10-25 Wayne Kerr Lab Ltd Improvements in or relating to weighing apparatus
US3427875A (en) * 1966-07-18 1969-02-18 Erwin J Saxl Multipurpose load cell
US3433064A (en) * 1967-05-23 1969-03-18 Revere Corp America Flexible structure for yieldably withstanding forces
US4065962A (en) * 1974-10-29 1978-01-03 Gse, Inc. Load cell
US4143727A (en) * 1977-03-30 1979-03-13 Revere Corporation Of America Leverless scale sensor
US4128001A (en) * 1977-09-16 1978-12-05 Transducers, Inc. Parallel beam load cell insensitive to point of application of load
FR2456310A1 (fr) * 1979-05-07 1980-12-05 Testut Aequitas Recepteur de charge avec poutrelle a flexion elastique

Also Published As

Publication number Publication date
US4344496A (en) 1982-08-17
ATE8536T1 (de) 1984-08-15
JPS5686319A (en) 1981-07-14
FR2469701B1 (fr) 1986-03-14
FR2469701A1 (fr) 1981-05-22
CA1144778A (en) 1983-04-19
EP0029776A1 (de) 1981-06-03
EP0029776B1 (de) 1984-07-18
ZA807017B (en) 1981-11-25
AU6426880A (en) 1981-05-21

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee