AT292329B - Force-frequency converter for scales - Google Patents

Force-frequency converter for scales

Info

Publication number
AT292329B
AT292329B AT696169A AT696169A AT292329B AT 292329 B AT292329 B AT 292329B AT 696169 A AT696169 A AT 696169A AT 696169 A AT696169 A AT 696169A AT 292329 B AT292329 B AT 292329B
Authority
AT
Austria
Prior art keywords
scales
force
frequency converter
converter
frequency
Prior art date
Application number
AT696169A
Other languages
German (de)
Inventor
Eike Dr Muehlenfeld
Werner Dr Schmueckle
Original Assignee
Sauter Kg August
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 Sauter Kg August filed Critical Sauter Kg August
Application granted granted Critical
Publication of AT292329B publication Critical patent/AT292329B/en

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
    • G01G3/16—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 frequency of oscillations of the body
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/10—Measuring force or stress, in general by measuring variations of frequency of stressed vibrating elements, e.g. of stressed strings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
    • G01L1/162—Measuring force or stress, in general using properties of piezoelectric devices using piezoelectric resonators

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
AT696169A 1968-07-24 1969-07-18 Force-frequency converter for scales AT292329B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1774598 1968-07-24

Publications (1)

Publication Number Publication Date
AT292329B true AT292329B (en) 1971-08-25

Family

ID=5702193

Family Applications (1)

Application Number Title Priority Date Filing Date
AT696169A AT292329B (en) 1968-07-24 1969-07-18 Force-frequency converter for scales

Country Status (5)

Country Link
AT (1) AT292329B (en)
BE (1) BE736022A (en)
CH (1) CH497691A (en)
FR (1) FR2013631A1 (en)
NL (1) NL6910989A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3423501A1 (en) * 1983-06-30 1985-01-10 Shinko Denshi Co. Ltd., Tokio/Tokyo MEASURING CONVERTER FOR CONVERTING A WEIGHT INTO A FREQUENCY

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4215570A (en) * 1979-04-20 1980-08-05 The United States Of America As Represented By The United States Department Of Energy Miniature quartz resonator force transducer
US4384495A (en) * 1980-11-17 1983-05-24 Quartex, Inc. Mounting system for applying forces to load-sensitive resonators
US4531073A (en) * 1983-05-31 1985-07-23 Ohaus Scale Corporation Piezoelectric crystal resonator with reduced impedance and sensitivity to change in humidity
DE3505165C2 (en) * 1985-02-15 1986-12-04 Danfoss A/S, Nordborg Method and device for measuring a force
JP2002365123A (en) * 2001-06-11 2002-12-18 Yamato Scale Co Ltd Load sensor using quartz oscillator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3423501A1 (en) * 1983-06-30 1985-01-10 Shinko Denshi Co. Ltd., Tokio/Tokyo MEASURING CONVERTER FOR CONVERTING A WEIGHT INTO A FREQUENCY

Also Published As

Publication number Publication date
CH497691A (en) 1970-10-15
BE736022A (en) 1969-12-16
FR2013631A1 (en) 1970-04-03
NL6910989A (en) 1970-01-27

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee