GB1356069A - Weighing machines - Google Patents

Weighing machines

Info

Publication number
GB1356069A
GB1356069A GB1654072A GB1654072A GB1356069A GB 1356069 A GB1356069 A GB 1356069A GB 1654072 A GB1654072 A GB 1654072A GB 1654072 A GB1654072 A GB 1654072A GB 1356069 A GB1356069 A GB 1356069A
Authority
GB
United Kingdom
Prior art keywords
resistors
april
capacitor
weighing machines
amplifiers
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
GB1654072A
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.)
Autopack Ltd
Original Assignee
Autopack 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 Autopack Ltd filed Critical Autopack Ltd
Priority to GB1654072A priority Critical patent/GB1356069A/en
Priority to NL7304954A priority patent/NL7304954A/xx
Priority to IT6802673A priority patent/IT980808B/en
Priority to FR7313156A priority patent/FR2180011B1/fr
Priority to DE19732318252 priority patent/DE2318252A1/en
Priority to ES413587A priority patent/ES413587A1/en
Publication of GB1356069A publication Critical patent/GB1356069A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G13/00—Weighing apparatus with automatic feed or discharge for weighing-out batches of material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/06—Means for damping oscillations, e.g. of weigh beams
    • G01G23/10—Means for damping oscillations, e.g. of weigh beams by electric or magnetic means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers

Abstract

1356069 Active filters AUTOPACK Ltd 4 April 1973 [11 April 1972) 16540/70 Headings H3T and H3U [Also in Division G1] An active filter (Fig. 2) comprises four operational amplifiers 15-18 each connected as a Sallen and Key circuit to act as low pass filters. The frequency response of amplifiers 15, 17 is additionally modified by a feedback circuit including emitter follower transistor TRI 1 capacitor C1 and resistors R1-R4, and transistor TR4, capacitor C10 and resistors R16, R17 respectively.
GB1654072A 1972-04-11 1972-04-11 Weighing machines Expired GB1356069A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB1654072A GB1356069A (en) 1972-04-11 1972-04-11 Weighing machines
NL7304954A NL7304954A (en) 1972-04-11 1973-04-10
IT6802673A IT980808B (en) 1972-04-11 1973-04-10 ELECTRONIC WEIGHER
FR7313156A FR2180011B1 (en) 1972-04-11 1973-04-11
DE19732318252 DE2318252A1 (en) 1972-04-11 1973-04-11 ELECTRONIC WEIGHING DEVICE
ES413587A ES413587A1 (en) 1972-04-11 1973-04-11 Weighing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1654072A GB1356069A (en) 1972-04-11 1972-04-11 Weighing machines

Publications (1)

Publication Number Publication Date
GB1356069A true GB1356069A (en) 1974-06-12

Family

ID=10079154

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1654072A Expired GB1356069A (en) 1972-04-11 1972-04-11 Weighing machines

Country Status (6)

Country Link
DE (1) DE2318252A1 (en)
ES (1) ES413587A1 (en)
FR (1) FR2180011B1 (en)
GB (1) GB1356069A (en)
IT (1) IT980808B (en)
NL (1) NL7304954A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5029658A (en) * 1990-04-12 1991-07-09 Clintec Nutrition Co. Mass/weight measurement filtering system
CN108189243A (en) * 2018-02-11 2018-06-22 成都兴联宜科技有限公司 A kind of batching electronic scale for concrete stirring

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537276A1 (en) * 1982-12-02 1984-06-08 Testut Aequitas ELECTRONIC MEASURING DEVICE WITH ACCELERATED LOW-PASS FILTERING, PARTICULARLY FOR WEIGHING
JPS60134128U (en) * 1984-02-16 1985-09-06 株式会社　石田衡器製作所 Weighing device
FR2622068A1 (en) * 1987-10-16 1989-04-21 Saviphar Sarl Analogue filter, in particular for electronic measuring apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643753A (en) * 1969-09-03 1972-02-22 Howe Richardson Scale Co Electrical filters for weighing system circuits

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5029658A (en) * 1990-04-12 1991-07-09 Clintec Nutrition Co. Mass/weight measurement filtering system
CN108189243A (en) * 2018-02-11 2018-06-22 成都兴联宜科技有限公司 A kind of batching electronic scale for concrete stirring

Also Published As

Publication number Publication date
ES413587A1 (en) 1976-01-16
IT980808B (en) 1974-10-10
NL7304954A (en) 1973-10-15
DE2318252A1 (en) 1973-10-18
FR2180011A1 (en) 1973-11-23
FR2180011B1 (en) 1977-08-19

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Legal Events

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