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GB2009940A - Force and position transducer - Google Patents

Force and position transducer

Info

Publication number
GB2009940A
GB2009940A GB7848834A GB7848834A GB2009940A GB 2009940 A GB2009940 A GB 2009940A GB 7848834 A GB7848834 A GB 7848834A GB 7848834 A GB7848834 A GB 7848834A GB 2009940 A GB2009940 A GB 2009940A
Authority
GB
United Kingdom
Prior art keywords
sets
force
strain gauges
load
position transducer
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
GB7848834A
Other versions
GB2009940B (en
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 GB7848834A priority Critical patent/GB2009940B/en
Publication of GB2009940A publication Critical patent/GB2009940A/en
Application granted granted Critical
Publication of GB2009940B publication Critical patent/GB2009940B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
    • G01G19/03—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing during motion
    • G01G19/035—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing during motion using electrical weight-sensitive devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
    • G01G19/04—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles
    • G01G19/045—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles for weighing railway vehicles in motion
    • G01G19/047—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles for weighing railway vehicles in motion using electrical weight-sensitive devices
    • 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
    • G01G3/1406—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports combined with special measuring circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Measurement Of Force In General (AREA)

Abstract

A force and position transducer comprises a cantilever beam carrying at its free end a rigid moment arm 12 to which the force in the form of a moving load is applied. The beam carries one or more sets of strain gauges 1,4; 5,8 the arrangement being such that, with a load moving along the arm 12 a reversal of polarity in the signals generated by the sets of strain gauges 1,4; 5,8 is effected on the load passing the same. Thus, in the arrangement shown, force measurements are only taken with the load between the two sets of strain gauges and to this end a "window" generating logic 30 associated with the sets is provided. These sets may also provide the force measurement although separate strain gauges may be provided for the purpose. If only one set of strain gauges is provided force measurements are either taken upstream or downstream thereof. <IMAGE>
GB7848834A 1977-12-10 1978-12-18 Position sensing transducer Expired GB2009940B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7848834A GB2009940B (en) 1977-12-10 1978-12-18 Position sensing transducer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5150877 1977-12-10
GB7848834A GB2009940B (en) 1977-12-10 1978-12-18 Position sensing transducer

Publications (2)

Publication Number Publication Date
GB2009940A true GB2009940A (en) 1979-06-20
GB2009940B GB2009940B (en) 1982-04-28

Family

ID=26266891

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7848834A Expired GB2009940B (en) 1977-12-10 1978-12-18 Position sensing transducer

Country Status (1)

Country Link
GB (1) GB2009940B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041127A1 (en) * 1980-05-29 1981-12-09 Eaton Corporation Electromechanical scale
EP0042242A1 (en) * 1980-06-17 1981-12-23 Elder, David Irvine McAllister Weighing device for fluent material
FR2498319A1 (en) * 1981-01-22 1982-07-23 K I Ispytate Weighing appts. for transport vehicles in motion - has two pairs of rods connecting support structure with platform in which arbitrary moment of forces acting causes zero deformations of rods
EP0044731A3 (en) * 1980-07-18 1983-02-23 United Biscuits (Uk) Limited Conveyor weighing assembly and associated method
US4565255A (en) * 1983-10-26 1986-01-21 Seb S.A. Weighing device with strain gages
US4577709A (en) * 1982-12-24 1986-03-25 Shimadzu Corporation Weighing scale with a load cell
US4759416A (en) * 1985-09-03 1988-07-26 U.S. Philips Corporation Weighing element for a weighing apparatus
EP0338553A3 (en) * 1988-04-22 1990-12-19 Carl Schenck Ag Balance for railway vehicles

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041127A1 (en) * 1980-05-29 1981-12-09 Eaton Corporation Electromechanical scale
EP0042242A1 (en) * 1980-06-17 1981-12-23 Elder, David Irvine McAllister Weighing device for fluent material
EP0044731A3 (en) * 1980-07-18 1983-02-23 United Biscuits (Uk) Limited Conveyor weighing assembly and associated method
FR2498319A1 (en) * 1981-01-22 1982-07-23 K I Ispytate Weighing appts. for transport vehicles in motion - has two pairs of rods connecting support structure with platform in which arbitrary moment of forces acting causes zero deformations of rods
US4577709A (en) * 1982-12-24 1986-03-25 Shimadzu Corporation Weighing scale with a load cell
US4565255A (en) * 1983-10-26 1986-01-21 Seb S.A. Weighing device with strain gages
US4759416A (en) * 1985-09-03 1988-07-26 U.S. Philips Corporation Weighing element for a weighing apparatus
EP0338553A3 (en) * 1988-04-22 1990-12-19 Carl Schenck Ag Balance for railway vehicles

Also Published As

Publication number Publication date
GB2009940B (en) 1982-04-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee