AT292329B - Kraft-Frequenzwandler für Waagen - Google Patents
Kraft-Frequenzwandler für WaagenInfo
- 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
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1774598 | 1968-07-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT292329B true AT292329B (de) | 1971-08-25 |
Family
ID=5702193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT696169A AT292329B (de) | 1968-07-24 | 1969-07-18 | Kraft-Frequenzwandler für Waagen |
Country Status (5)
Country | Link |
---|---|
AT (1) | AT292329B (xx) |
BE (1) | BE736022A (xx) |
CH (1) | CH497691A (xx) |
FR (1) | FR2013631A1 (xx) |
NL (1) | NL6910989A (xx) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3423501A1 (de) * | 1983-06-30 | 1985-01-10 | Shinko Denshi Co. Ltd., Tokio/Tokyo | Messwandler zur umsetzung eines gewichtes in eine frequenz |
Families Citing this family (5)
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 (de) * | 1985-02-15 | 1986-12-04 | Danfoss A/S, Nordborg | Verfahren und Vorrichtung zum Messen einer Kraft |
JP2002365123A (ja) | 2001-06-11 | 2002-12-18 | Yamato Scale Co Ltd | 水晶振動子を用いた荷重センサ |
-
1969
- 1969-06-25 CH CH993769A patent/CH497691A/de not_active IP Right Cessation
- 1969-07-11 BE BE736022D patent/BE736022A/xx unknown
- 1969-07-17 NL NL6910989A patent/NL6910989A/xx unknown
- 1969-07-18 AT AT696169A patent/AT292329B/de not_active IP Right Cessation
- 1969-07-24 FR FR6925668A patent/FR2013631A1/fr not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3423501A1 (de) * | 1983-06-30 | 1985-01-10 | Shinko Denshi Co. Ltd., Tokio/Tokyo | Messwandler zur umsetzung eines gewichtes in eine frequenz |
Also Published As
Publication number | Publication date |
---|---|
FR2013631A1 (xx) | 1970-04-03 |
CH497691A (de) | 1970-10-15 |
BE736022A (xx) | 1969-12-16 |
NL6910989A (xx) | 1970-01-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee |