GB1143112A - Improvements in apparatus for dynamic weighing of loads - Google Patents

Improvements in apparatus for dynamic weighing of loads

Info

Publication number
GB1143112A
GB1143112A GB3851766A GB3851766A GB1143112A GB 1143112 A GB1143112 A GB 1143112A GB 3851766 A GB3851766 A GB 3851766A GB 3851766 A GB3851766 A GB 3851766A GB 1143112 A GB1143112 A GB 1143112A
Authority
GB
United Kingdom
Prior art keywords
load
pulse
circuit
bridge
weight
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
GB3851766A
Inventor
John Moorhouse Chilton
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 GB3851766A priority Critical patent/GB1143112A/en
Publication of GB1143112A publication Critical patent/GB1143112A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/16—Sorting according to weight
    • B07C5/32—Sorting according to weight with associated check-weighing means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G15/00—Arrangements for check-weighing of materials dispensed into removable containers
    • 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
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
    • 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
    • G01G3/142—Circuits specially adapted therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Sorting Of Articles (AREA)
  • Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)

Abstract

1,143,112. Weighing apparatus, electrical. W. & T. AVERY Ltd. Aug.24, 1967 [Aug. 27, 1966], No.38517/66. Heading G1N. In an apparatus for check weighing and sorting articles by weight, load cells (e. g. resistance strain gauges), are connected in a circuit to produce an analogue load signal including an actual load component and a time varying error signal due to extraneous vibration. To extract the true value of the load as quickly as possible, an impulse representing a function y = f(t) which is positive throughout the weigh-period T and symmetrical about a maximum value T/2, is applied as the input to a bridge circuit formed by the load cells and the bridge output is integrated over period T, to give an indication of the true weight. In Fig. 2 resistance strain gauges 20 to 23 are bonded to cantilever support member of a weigh platform 27 and are connected to form bridge 12. Arrival of a load on the platform is sensed by photo-cell 32 which triggers a monostable multivibrator 33 which generates a single squarewave pulse A which is integrated at 35, shaped at 37 to give pulse C representing the function y = f(t). The amplified pulse C is applied across the bridge 12 and to a switch 14b. Switches 14a, 14b are closed by a relay 40 for duration of the rectangular pulse A, so that the outputs of amplifiers 13, 38 are fed to respective integrating amplifiers 44, 45 which provide a time integral of the bridge output and of pulse C respectively. To sort the packages into three groups - light, correct and overweight, the output from integrator 44 representing actual weight is fed to bi-stable trigger circuits 50, 51. The other input to each trigger is derived from potentiometers 52, 53 supplied with a reference voltage from integrator 45. If the load is underweight circuit 50 is triggered and circuit 51 is triggered for overweight. Neither circuit is triggered if the load is of correct weight.
GB3851766A 1966-08-27 1966-08-27 Improvements in apparatus for dynamic weighing of loads Expired GB1143112A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3851766A GB1143112A (en) 1966-08-27 1966-08-27 Improvements in apparatus for dynamic weighing of loads

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3851766A GB1143112A (en) 1966-08-27 1966-08-27 Improvements in apparatus for dynamic weighing of loads

Publications (1)

Publication Number Publication Date
GB1143112A true GB1143112A (en) 1969-02-19

Family

ID=10403995

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3851766A Expired GB1143112A (en) 1966-08-27 1966-08-27 Improvements in apparatus for dynamic weighing of loads

Country Status (1)

Country Link
GB (1) GB1143112A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712395A (en) * 1970-11-16 1973-01-23 Franklin Electric Co Inc Weight sensing cell
CN113188445A (en) * 2021-05-07 2021-07-30 唐山胡子物流有限公司 Automatic weighing system for logistics vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712395A (en) * 1970-11-16 1973-01-23 Franklin Electric Co Inc Weight sensing cell
CN113188445A (en) * 2021-05-07 2021-07-30 唐山胡子物流有限公司 Automatic weighing system for logistics vehicles

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