GB1375336A - - Google Patents

Info

Publication number
GB1375336A
GB1375336A GB2351573A GB2351573A GB1375336A GB 1375336 A GB1375336 A GB 1375336A GB 2351573 A GB2351573 A GB 2351573A GB 2351573 A GB2351573 A GB 2351573A GB 1375336 A GB1375336 A GB 1375336A
Authority
GB
United Kingdom
Prior art keywords
weight
switch
relay
less
input
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
GB2351573A
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 filed Critical
Publication of GB1375336A publication Critical patent/GB1375336A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G7/00—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups
    • G01G7/02—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electromagnetic action
    • 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
    • G01G23/37—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/02—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a helical spring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

1375336 Digital weighing SHINKO DENSHI KK 17 May 1973 [20 May 1972] 23515/73 Heading G4H In a weighing apparatus with digital readout, the sensitivity is automatically reduced by a factor n when the input exceeds the maximum capacity of the indicator and increased by the same factor when the input is less than 1/n of the indicator capacity. As described with n = 10, weight 1 produces a weight proportional voltage from differential transformer 2 and this is fed via rectifier 3, amplifier 4, 10 : 1 potential divider 8, 9 and switch 12 to the three digit display which has a full scale reading of 999 corresponding to 9À99g. For weights of less than 9À99 g. the switches of relay 10 are as shown and contact 13a of switch 13 actuates the left hand decimal point. If the weight exceeds 10g. an overscale signal is generated closing switch 14 to actuate the relay. This connects contacts 11 and 11a holding the relay on, reduces the input voltage to one tenth of its previous value via contact 12b of switch 12 and switches on the right hand decimal point. When the weight is reduced to 9À99g. or less, the input to the display will be 0À099 volts or less display reading 09À9 and the zero in the first place causes switch 15 to open switching the relay off and restoring the original condition. The system may also comprise a 1999 or 9999 readout, and use 3 decimal points. The weight to voltage conversion device may be a load cell comprising a strain gauge.
GB2351573A 1972-05-20 1973-05-17 Expired GB1375336A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47050559A JPS4919850A (en) 1972-05-20 1972-05-20

Publications (1)

Publication Number Publication Date
GB1375336A true GB1375336A (en) 1974-11-27

Family

ID=12862351

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2351573A Expired GB1375336A (en) 1972-05-20 1973-05-17

Country Status (3)

Country Link
JP (1) JPS4919850A (en)
DE (1) DE2325654A1 (en)
GB (1) GB1375336A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4271392A (en) 1977-09-29 1981-06-02 The Solartron Electronic Group Limited Latching relay circuits and analog to digital converters
CN111238618A (en) * 2018-11-29 2020-06-05 梅特勒-托莱多有限公司 Time-saving weighing in production process

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5733533B2 (en) * 1974-01-07 1982-07-17
JPS50115069A (en) * 1974-02-18 1975-09-09
JPS5819048B2 (en) * 1975-05-02 1983-04-15 カブシキガイシヤ テラオカセイコウシヨ Digital electronic scale with overweight detection function
JPS5816135B2 (en) * 1975-08-26 1983-03-29 株式会社クボタ Keiji Yuuki Denshiki
JPS5819050B2 (en) * 1975-10-21 1983-04-15 株式会社クボタ Keiji Yuuki Denshiki
NL7713890A (en) * 1977-04-19 1978-10-23 Mettler Instrumente Ag DIGITALLY INDICATING BALANCE SHEET.
CH615507A5 (en) * 1977-07-28 1980-01-31 Wirth Gallo & Co
JPS6319802Y2 (en) * 1979-08-02 1988-06-02
US4706767A (en) * 1986-11-26 1987-11-17 F.M.E. Corporation Dual-range analog-to-digital convertor
EP0407503B1 (en) * 1988-12-14 1992-03-11 Wirth, Gallo Messtechnik AG Drift compensated null point indication for a force measuring device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4271392A (en) 1977-09-29 1981-06-02 The Solartron Electronic Group Limited Latching relay circuits and analog to digital converters
CN111238618A (en) * 2018-11-29 2020-06-05 梅特勒-托莱多有限公司 Time-saving weighing in production process
CN111238618B (en) * 2018-11-29 2023-11-03 梅特勒-托莱多有限公司 Time-saving weighing in production process

Also Published As

Publication number Publication date
DE2325654A1 (en) 1973-11-29
JPS4919850A (en) 1974-02-21

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees