SE436937B - Kopplingsanordning for omvandling av en motstandsvariation till en frekvensvariation - Google Patents
Kopplingsanordning for omvandling av en motstandsvariation till en frekvensvariationInfo
- Publication number
- SE436937B SE436937B SE8100008A SE8100008A SE436937B SE 436937 B SE436937 B SE 436937B SE 8100008 A SE8100008 A SE 8100008A SE 8100008 A SE8100008 A SE 8100008A SE 436937 B SE436937 B SE 436937B
- Authority
- SE
- Sweden
- Prior art keywords
- output
- input
- bridge circuit
- amplifier
- frequency
- Prior art date
Links
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- KEBHLNDPKPIPLI-UHFFFAOYSA-N hydron;2-(3h-inden-4-yloxymethyl)morpholine;chloride Chemical compound Cl.C=1C=CC=2C=CCC=2C=1OCC1CNCCO1 KEBHLNDPKPIPLI-UHFFFAOYSA-N 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
- G01R17/10—AC or DC measuring bridges
-
- 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
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/225—Measuring circuits therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Amplifiers (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Measuring Fluid Pressure (AREA)
- Measurement Of Force In General (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3000291A DE3000291C2 (de) | 1980-01-05 | 1980-01-05 | Schaltungsanordnung zur Umwandlung einer Widerstandsänderung in eine Frequenzänderung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8100008L SE8100008L (sv) | 1981-07-06 |
| SE436937B true SE436937B (sv) | 1985-01-28 |
Family
ID=6091586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8100008A SE436937B (sv) | 1980-01-05 | 1981-01-02 | Kopplingsanordning for omvandling av en motstandsvariation till en frekvensvariation |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4794350A (en, 2012) |
| JP (1) | JPS56101563A (en, 2012) |
| DE (1) | DE3000291C2 (en, 2012) |
| FR (1) | FR2473183A1 (en, 2012) |
| GB (1) | GB2068130B (en, 2012) |
| IT (1) | IT1134935B (en, 2012) |
| SE (1) | SE436937B (en, 2012) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3142325C2 (de) * | 1981-10-24 | 1983-08-25 | Hewlett-Packard GmbH, 7030 Böblingen | Brückenschaltung für Messzwecke |
| DE3609358A1 (de) * | 1986-03-20 | 1987-09-24 | Philips Patentverwaltung | Harmonischer messoszillator zur erfassung physikalischer parameter |
| US5384554A (en) * | 1993-12-08 | 1995-01-24 | Calcomp Inc. | Voltage controlled oscillator circuit employing integrated circuit component ratios |
| RU2495440C2 (ru) * | 2012-01-17 | 2013-10-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Юго-Западный государственный университет" (ЮЗГУ) | Измеритель параметров многоэлементных пассивных двухполюсников |
| RU2509311C1 (ru) * | 2012-07-17 | 2014-03-10 | Федеральное бюджетное государственное образовательное учреждение высшего профессионального образования "Юго-Западный государственный университет" (ЮЗГУ) | Мостовой измеритель параметров пассивных многоэлементных rlc двухполюсников |
| CN116679125B (zh) * | 2023-06-07 | 2024-04-09 | 海安市综合检验检测中心 | 利用多谐振荡器产生被测信号的应变电阻测量电路装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2782311A (en) * | 1953-09-17 | 1957-02-19 | Bendix Aviat Corp | Bridge controlled oscillator |
| US3127577A (en) * | 1960-06-30 | 1964-03-31 | Raytheon Co | Frequency controlled oscillator |
| DE2209770C3 (de) * | 1972-03-01 | 1980-07-24 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Schaltungsanordnung zur Umwandlung des exponentiell mit einer Meßgröße verknüpften Widerstandswerts eines Widerstandsgebers in eine der Meßgröße proportionale Frequenz einer elektrischen Schwingung |
| DE2214114C3 (de) * | 1972-03-23 | 1974-12-05 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Schaltungsanordnung zur Umwandlung einer Verstimmung einer Widerstandsbriicke in eine dazu proportionale Frequenzänderung eines RC-Oszillators |
| US3878484A (en) * | 1974-01-11 | 1975-04-15 | Hekimian Laboratories Inc | Oscillator having output frequency linearly related to resistance |
| DE2433080C2 (de) * | 1974-07-10 | 1983-09-29 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Schaltungsanordnung zur Umwandlung einer Brückenverstimmung in eine Frequenzänderung |
-
1980
- 1980-01-05 DE DE3000291A patent/DE3000291C2/de not_active Expired
- 1980-12-23 GB GB8041130A patent/GB2068130B/en not_active Expired
- 1980-12-29 US US06/220,931 patent/US4794350A/en not_active Expired - Fee Related
- 1980-12-29 FR FR8027682A patent/FR2473183A1/fr active Granted
-
1981
- 1981-01-02 SE SE8100008A patent/SE436937B/sv not_active IP Right Cessation
- 1981-01-02 IT IT19001/81A patent/IT1134935B/it active
- 1981-01-05 JP JP26481A patent/JPS56101563A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB2068130B (en) | 1984-02-29 |
| FR2473183B1 (en, 2012) | 1983-07-22 |
| DE3000291A1 (de) | 1981-07-09 |
| GB2068130A (en) | 1981-08-05 |
| IT8119001A0 (it) | 1981-01-02 |
| JPS56101563A (en) | 1981-08-14 |
| DE3000291C2 (de) | 1982-06-09 |
| FR2473183A1 (fr) | 1981-07-10 |
| IT1134935B (it) | 1986-08-20 |
| SE8100008L (sv) | 1981-07-06 |
| US4794350A (en) | 1988-12-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
Ref document number: 8100008-5 Effective date: 19901211 Format of ref document f/p: F |