FR2319119A1 - Strain gauge cell weighing instrument with digital display - has measuring and calibration bridge circuits and converting circuit to give pulses - Google Patents

Strain gauge cell weighing instrument with digital display - has measuring and calibration bridge circuits and converting circuit to give pulses

Info

Publication number
FR2319119A1
FR2319119A1 FR7523018A FR7523018A FR2319119A1 FR 2319119 A1 FR2319119 A1 FR 2319119A1 FR 7523018 A FR7523018 A FR 7523018A FR 7523018 A FR7523018 A FR 7523018A FR 2319119 A1 FR2319119 A1 FR 2319119A1
Authority
FR
France
Prior art keywords
strain gauge
digital display
measuring
converting circuit
bridge circuits
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
FR7523018A
Other languages
French (fr)
Other versions
FR2319119B3 (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.)
Testut Aequitas SA
Original Assignee
Testut Aequitas SA
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 Testut Aequitas SA filed Critical Testut Aequitas SA
Priority to FR7523018A priority Critical patent/FR2319119A1/en
Publication of FR2319119A1 publication Critical patent/FR2319119A1/en
Application granted granted Critical
Publication of FR2319119B3 publication Critical patent/FR2319119B3/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G01G3/147—Circuits specially adapted therefor involving digital counting
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Force In General (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

Digital equipment for weighing provides accurate measurements for small signals, long lines and in the presence of interference. The equipment has a strain gauge bridge circuit (11) which provides a measure of weight. It also has a circuit comprising an integrator (33), a comparator (35) and an inverting circuit (37). The output of this circuit is a train of pulses whose frequency is proportional to the voltage signal of the bridge circuit (11). These pulses are fed to a counter with a digital display.
FR7523018A 1975-07-23 1975-07-23 Strain gauge cell weighing instrument with digital display - has measuring and calibration bridge circuits and converting circuit to give pulses Granted FR2319119A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7523018A FR2319119A1 (en) 1975-07-23 1975-07-23 Strain gauge cell weighing instrument with digital display - has measuring and calibration bridge circuits and converting circuit to give pulses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7523018A FR2319119A1 (en) 1975-07-23 1975-07-23 Strain gauge cell weighing instrument with digital display - has measuring and calibration bridge circuits and converting circuit to give pulses

Publications (2)

Publication Number Publication Date
FR2319119A1 true FR2319119A1 (en) 1977-02-18
FR2319119B3 FR2319119B3 (en) 1977-09-16

Family

ID=9158264

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7523018A Granted FR2319119A1 (en) 1975-07-23 1975-07-23 Strain gauge cell weighing instrument with digital display - has measuring and calibration bridge circuits and converting circuit to give pulses

Country Status (1)

Country Link
FR (1) FR2319119A1 (en)

Also Published As

Publication number Publication date
FR2319119B3 (en) 1977-09-16

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Legal Events

Date Code Title Description
GC Lien (pledge) constituted
ST Notification of lapse