CH497691A - Elektromechanischer Kraft-Frequenzwandler für Waagen - Google Patents
Elektromechanischer Kraft-Frequenzwandler für WaagenInfo
- 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
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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1774598 | 1968-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH497691A true CH497691A (de) | 1970-10-15 |
Family
ID=5702193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH993769A CH497691A (de) | 1968-07-24 | 1969-06-25 | Elektromechanischer Kraft-Frequenzwandler für Waagen |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT292329B (de) |
| BE (1) | BE736022A (de) |
| CH (1) | CH497691A (de) |
| FR (1) | FR2013631A1 (de) |
| NL (1) | NL6910989A (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3505165A1 (de) * | 1985-02-15 | 1986-08-21 | Danfoss A/S, Nordborg | Verfahren und vorrichtung zum messen einer kraft |
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 |
| JPS6010122A (ja) * | 1983-06-30 | 1985-01-19 | Shinko Denshi Kk | 荷重変換機構 |
| 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 |
|---|---|---|---|---|
| DE3505165A1 (de) * | 1985-02-15 | 1986-08-21 | Danfoss A/S, Nordborg | Verfahren und vorrichtung zum messen einer kraft |
Also Published As
| Publication number | Publication date |
|---|---|
| BE736022A (de) | 1969-12-16 |
| AT292329B (de) | 1971-08-25 |
| NL6910989A (de) | 1970-01-27 |
| FR2013631A1 (de) | 1970-04-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |