DE69618590D1 - Kraftempfindliche waage und wägezelle mit sensorenpaar dafür - Google Patents

Kraftempfindliche waage und wägezelle mit sensorenpaar dafür

Info

Publication number
DE69618590D1
DE69618590D1 DE69618590T DE69618590T DE69618590D1 DE 69618590 D1 DE69618590 D1 DE 69618590D1 DE 69618590 T DE69618590 T DE 69618590T DE 69618590 T DE69618590 T DE 69618590T DE 69618590 D1 DE69618590 D1 DE 69618590D1
Authority
DE
Germany
Prior art keywords
force
load cell
sensor pair
sensitive scale
sensitive
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 - Fee Related
Application number
DE69618590T
Other languages
English (en)
Other versions
DE69618590T2 (de
Inventor
M Johnson
A Younger
L Justice
M Fruechte
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.)
Avery Weigh Tronix Ltd
Avery Weigh Tronix LLC
Original Assignee
Avery Weigh Tronix Ltd
Avery Weigh Tronix LLC
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 Avery Weigh Tronix Ltd, Avery Weigh Tronix LLC filed Critical Avery Weigh Tronix Ltd
Application granted granted Critical
Publication of DE69618590D1 publication Critical patent/DE69618590D1/de
Publication of DE69618590T2 publication Critical patent/DE69618590T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G01G3/1414—Arrangements for correcting or for compensating for unwanted effects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/08—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles
    • G01G19/083—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles lift truck scale
    • 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
    • G01G3/1404—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports combined with means to connect the strain gauges on electrical bridges
    • 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
    • G01L1/2218—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric, adapted for measuring a force along a single direction
    • G01L1/2225—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric, adapted for measuring a force along a single direction the direction being perpendicular to the central axis
    • 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
    • G01L1/225—Measuring circuits therefor
    • G01L1/2262—Measuring circuits therefor involving simple electrical bridges
    • 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
    • G01L1/2281—Arrangements for correcting or for compensating unwanted effects for temperature variations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Force In General (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
DE69618590T 1995-06-16 1996-06-11 Kraftempfindliche waage und wägezelle mit sensorenpaar dafür Expired - Fee Related DE69618590T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/491,034 US5837946A (en) 1995-06-16 1995-06-16 Force sensitive scale and dual load sensor cell for use therewith
PCT/US1996/010204 WO1997000427A1 (en) 1995-06-16 1996-06-11 Force sensitive scale and dual sensor load cell for use therewith

Publications (2)

Publication Number Publication Date
DE69618590D1 true DE69618590D1 (de) 2002-02-21
DE69618590T2 DE69618590T2 (de) 2002-09-12

Family

ID=23950529

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69618590T Expired - Fee Related DE69618590T2 (de) 1995-06-16 1996-06-11 Kraftempfindliche waage und wägezelle mit sensorenpaar dafür

Country Status (5)

Country Link
US (2) US5837946A (de)
EP (2) EP0832420B1 (de)
CA (1) CA2224729C (de)
DE (1) DE69618590T2 (de)
WO (1) WO1997000427A1 (de)

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US11402257B1 (en) 2019-11-21 2022-08-02 Amazon Technologies, Inc. System for compensation of weight sensor
US11130660B2 (en) 2020-01-08 2021-09-28 Cascade Corporation Lift truck attachments
US11365104B2 (en) 2020-01-08 2022-06-21 Cascade Corporation Attachments for industrial material handling equipment
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Also Published As

Publication number Publication date
US5837946A (en) 1998-11-17
EP1162436A2 (de) 2001-12-12
DE69618590T2 (de) 2002-09-12
US6002090A (en) 1999-12-14
EP1162436A3 (de) 2001-12-19
EP0832420A1 (de) 1998-04-01
CA2224729C (en) 2008-04-01
WO1997000427A1 (en) 1997-01-03
CA2224729A1 (en) 1997-01-03
EP0832420B1 (de) 2002-01-16

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Legal Events

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8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee