CH497691A - Electromechanical force-frequency converter for scales - Google Patents

Electromechanical force-frequency converter for scales

Info

Publication number
CH497691A
CH497691A CH993769A CH993769A CH497691A CH 497691 A CH497691 A CH 497691A CH 993769 A CH993769 A CH 993769A CH 993769 A CH993769 A CH 993769A CH 497691 A CH497691 A CH 497691A
Authority
CH
Switzerland
Prior art keywords
scales
frequency converter
electromechanical force
electromechanical
force
Prior art date
Application number
CH993769A
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
Publication of CH497691A publication Critical patent/CH497691A/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)
CH993769A 1968-07-24 1969-06-25 Electromechanical force-frequency converter for scales CH497691A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH497691A true CH497691A (en) 1970-10-15

Family

ID=5702193

Family Applications (1)

Application Number Title Priority Date Filing Date
CH993769A CH497691A (en) 1968-07-24 1969-06-25 Electromechanical 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
DE3505165A1 (en) * 1985-02-15 1986-08-21 Danfoss A/S, Nordborg METHOD AND DEVICE FOR MEASURING A FORCE

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
JPS6010122A (en) * 1983-06-30 1985-01-19 Shinko Denshi Kk Load converting mechanism
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
DE3505165A1 (en) * 1985-02-15 1986-08-21 Danfoss A/S, Nordborg METHOD AND DEVICE FOR MEASURING A FORCE

Also Published As

Publication number Publication date
NL6910989A (en) 1970-01-27
FR2013631A1 (en) 1970-04-03
BE736022A (en) 1969-12-16
AT292329B (en) 1971-08-25

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Legal Events

Date Code Title Description
PL Patent ceased