GB1373992A - Force measuring apparatus - Google Patents

Force measuring apparatus

Info

Publication number
GB1373992A
GB1373992A GB116872A GB116872A GB1373992A GB 1373992 A GB1373992 A GB 1373992A GB 116872 A GB116872 A GB 116872A GB 116872 A GB116872 A GB 116872A GB 1373992 A GB1373992 A GB 1373992A
Authority
GB
United Kingdom
Prior art keywords
platform
flexure
weighing
members
inflexion
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
GB116872A
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
Original Assignee
W&T Avery Ltd
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 W&T Avery Ltd filed Critical W&T Avery Ltd
Priority to GB116872A priority Critical patent/GB1373992A/en
Publication of GB1373992A publication Critical patent/GB1373992A/en
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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Force In General (AREA)

Abstract

1373992 Measuring force electrically: weighing W & T AVERY Ltd 22 March 1973 [11 Jan 1972] 1168/72 Headings G1N and G1W A force-measuring apparatus comprises a platform 10 supported above a base 11 through thin flat flexules 12 which are connected to the platform and base by rigid members 13, 14 such that under load the flexures distort with a point of inflexion, and strain gauges are secured on each flexure on either side of the point of inflexion and are connected in opposition so as to provide an output which indicates the imposed load W independently of its position on the platform 10. Four flexures, one at each corner may be disposed to support a rectangular platform, each flexure comprising two or more parallel members Fig. 5 (not shown). In a weighing arrangement Fig. 6 (not shown) the platform supports a weighing scoop, and a dashpot provides damping. Bridge circuits of the flexure members are connected together to give a single output Fig. 9 (not shown).
GB116872A 1973-03-22 1973-03-22 Force measuring apparatus Expired GB1373992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB116872A GB1373992A (en) 1973-03-22 1973-03-22 Force measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB116872A GB1373992A (en) 1973-03-22 1973-03-22 Force measuring apparatus

Publications (1)

Publication Number Publication Date
GB1373992A true GB1373992A (en) 1974-11-13

Family

ID=9717353

Family Applications (1)

Application Number Title Priority Date Filing Date
GB116872A Expired GB1373992A (en) 1973-03-22 1973-03-22 Force measuring apparatus

Country Status (1)

Country Link
GB (1) GB1373992A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2451571A1 (en) * 1979-03-15 1980-10-10 Perrier Gerard BALANCE, ESPECIALLY SCALE
CN108870471A (en) * 2018-07-19 2018-11-23 上海纯米电子科技有限公司 Weighing electromagnetic oven and its cooking methods

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2451571A1 (en) * 1979-03-15 1980-10-10 Perrier Gerard BALANCE, ESPECIALLY SCALE
EP0017600A1 (en) * 1979-03-15 1980-10-15 PESE-BEBE CORMIER Société anonyme Balance, especially for weighing persons
CN108870471A (en) * 2018-07-19 2018-11-23 上海纯米电子科技有限公司 Weighing electromagnetic oven and its cooking methods

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee