CA2264827A1 - Multi-axis load cell - Google Patents

Multi-axis load cell

Info

Publication number
CA2264827A1
CA2264827A1 CA002264827A CA2264827A CA2264827A1 CA 2264827 A1 CA2264827 A1 CA 2264827A1 CA 002264827 A CA002264827 A CA 002264827A CA 2264827 A CA2264827 A CA 2264827A CA 2264827 A1 CA2264827 A1 CA 2264827A1
Authority
CA
Canada
Prior art keywords
load cell
radial
annular ring
central hub
rigid
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.)
Granted
Application number
CA002264827A
Other languages
French (fr)
Other versions
CA2264827C (en
Inventor
Jodi L. Sommerfeld
Richard A. Meyer
Brett A. Larson
Douglas J. Olson
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.)
MTS Systems Corp
Original Assignee
Mts Systems Corporation
Jodi L. Sommerfeld
Richard A. Meyer
Brett A. Larson
Douglas J. Olson
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
Priority claimed from US08/892,914 external-priority patent/US6038933A/en
Application filed by Mts Systems Corporation, Jodi L. Sommerfeld, Richard A. Meyer, Brett A. Larson, Douglas J. Olson filed Critical Mts Systems Corporation
Publication of CA2264827A1 publication Critical patent/CA2264827A1/en
Application granted granted Critical
Publication of CA2264827C publication Critical patent/CA2264827C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
    • G01L5/161—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
    • G01L5/161—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance
    • G01L5/1627—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance of strain gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/20—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring wheel side-thrust

Abstract

A load cell body (10, 10') for measuring components of force and moment in plural direction includes an integral assembly having a rigid central hub (14) and a rigid annular ring (16) concentric with the central hub (14). At least three radial tubes (21, 22, 23, 24) extend radially along corresponding longitudinal axes (21A, 22A, 23A, 24A) from the central hub (14) to the annular ring (16). Flexure members (31, 32, 33, 34) join the radial tubes (21, 22, 23, 24) to the the annular ring (16). Each flexure member (31, 32, 33, 34) is compliant for displacemnt of each corresponding radial (21, 22, 23, 24) tube along the corresponding longitudinal axis (21A, 22A, 23A, 24A). As a load cell (10, 10'), a strain sensor (44, 46, 48) mounted on each radial tube (21, 22, 23, 24) measures strain therein.
CA002264827A 1997-07-15 1998-07-14 Multi-axis load cell Expired - Lifetime CA2264827C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US08/892,914 US6038933A (en) 1997-07-15 1997-07-15 Multi-axis load cell
US08/892,914 1997-07-15
US09/026,458 1998-02-19
US09/026,458 US5969268A (en) 1997-07-15 1998-02-19 Multi-axis load cell
PCT/US1998/014607 WO1999004235A1 (en) 1997-07-15 1998-07-14 Multi-axis load cell

Publications (2)

Publication Number Publication Date
CA2264827A1 true CA2264827A1 (en) 1999-01-28
CA2264827C CA2264827C (en) 2007-06-05

Family

ID=26701275

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002264827A Expired - Lifetime CA2264827C (en) 1997-07-15 1998-07-14 Multi-axis load cell

Country Status (8)

Country Link
US (1) US5969268A (en)
EP (2) EP0938652B1 (en)
JP (1) JP4104173B2 (en)
KR (1) KR100478328B1 (en)
CN (2) CN100334435C (en)
CA (1) CA2264827C (en)
DE (2) DE69818420T2 (en)
WO (1) WO1999004235A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109514589A (en) * 2018-12-11 2019-03-26 上海应用技术大学 A kind of force-measuring type robot end device

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CN109514589B (en) * 2018-12-11 2021-12-17 上海应用技术大学 Force measuring type robot end device

Also Published As

Publication number Publication date
DE69818420T2 (en) 2004-07-15
CA2264827C (en) 2007-06-05
KR100478328B1 (en) 2005-03-24
EP1363115B1 (en) 2007-10-17
JP2001500979A (en) 2001-01-23
CN1234866A (en) 1999-11-10
EP0938652B1 (en) 2003-09-24
EP0938652A1 (en) 1999-09-01
DE69818420D1 (en) 2003-10-30
DE69838594D1 (en) 2007-11-29
JP4104173B2 (en) 2008-06-18
WO1999004235A1 (en) 1999-01-28
DE69838594T2 (en) 2008-07-31
EP1363115A1 (en) 2003-11-19
CN1182377C (en) 2004-12-29
CN100334435C (en) 2007-08-29
CN1624444A (en) 2005-06-08
KR20000068544A (en) 2000-11-25
US5969268A (en) 1999-10-19

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