DE2844121C2 - Einrichtung zur Messung von kleinen Kapazitäten - Google Patents
Einrichtung zur Messung von kleinen KapazitätenInfo
- Publication number
- DE2844121C2 DE2844121C2 DE2844121A DE2844121A DE2844121C2 DE 2844121 C2 DE2844121 C2 DE 2844121C2 DE 2844121 A DE2844121 A DE 2844121A DE 2844121 A DE2844121 A DE 2844121A DE 2844121 C2 DE2844121 C2 DE 2844121C2
- Authority
- DE
- Germany
- Prior art keywords
- circuit
- capacitance
- voltage
- measured
- measuring
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- 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
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2605—Measuring capacitance
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI773063A FI57319C (fi) | 1977-10-14 | 1977-10-14 | Foerfarande foer maetning av smao kapacitanser |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2844121A1 DE2844121A1 (de) | 1979-04-19 |
DE2844121C2 true DE2844121C2 (de) | 1981-09-24 |
Family
ID=8511140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2844121A Expired DE2844121C2 (de) | 1977-10-14 | 1978-10-10 | Einrichtung zur Messung von kleinen Kapazitäten |
Country Status (10)
Country | Link |
---|---|
JP (2) | JPS5498696A (fi) |
AU (1) | AU523345B2 (fi) |
BR (1) | BR7806786A (fi) |
CA (1) | CA1128129A (fi) |
DE (1) | DE2844121C2 (fi) |
FI (1) | FI57319C (fi) |
FR (1) | FR2410280A1 (fi) |
GB (1) | GB2006442B (fi) |
IT (1) | IT1100121B (fi) |
ZA (1) | ZA785694B (fi) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2475231A1 (fr) * | 1980-02-04 | 1981-08-07 | Testut Aequitas | Dispositif de mesure de capacite, en particulier pour instrument de pesage |
JPS56166411A (en) * | 1980-05-27 | 1981-12-21 | Yokogawa Hokushin Electric Corp | Capacity type displacement transducer |
DE3117808A1 (de) * | 1981-05-06 | 1982-11-25 | Robert Bosch Gmbh, 7000 Stuttgart | Schaltungsanordnung zur messung von induktivitaetsaenderungen |
DK4383A (da) * | 1983-01-07 | 1984-07-08 | Nils Aage Juul Eilersen | Oscillatorkobling |
FI69932C (fi) * | 1984-05-31 | 1986-05-26 | Vaisala Oy | Maetningsfoerfarande foer kapacitanser speciellt foer smao kapacitanser vid vilker man anvaender tvao referenser |
JPS6114578A (ja) * | 1984-06-30 | 1986-01-22 | Suzuki Shigeo | 容量計 |
FI74549C (fi) * | 1986-02-13 | 1988-02-08 | Vaisala Oy | Maetningsfoerfarande foer impedanser, saerskilt smao kapacitanser. |
DE4039006C1 (fi) * | 1990-12-06 | 1992-03-12 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De | |
JP2007187509A (ja) * | 2006-01-12 | 2007-07-26 | Denso Corp | 容量式物理量センサ |
WO2010060428A1 (en) * | 2008-11-02 | 2010-06-03 | Nils Aage Juul Eilersen | Current sensor capacitance measuring circuit |
FR2977950B1 (fr) * | 2011-07-13 | 2014-11-07 | Jean Noel Lefebvre | Dispositif de detection capacitif |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3518537A (en) * | 1967-11-28 | 1970-06-30 | Richard Mcfee | Apparatus and method for determining the capacitance and conductance of capacitors |
US3626287A (en) * | 1969-02-10 | 1971-12-07 | C G I Corp | System for responding to changes in capacitance of a sensing capacitor |
FR2142732B1 (fi) * | 1971-06-24 | 1975-02-07 | Commissariat Energie Atomique | |
FR2208121B1 (fi) * | 1972-11-29 | 1978-12-29 | Commissariat Energie Atomique | |
US4083248A (en) * | 1975-09-04 | 1978-04-11 | Simmonds Precision Products, Inc. | Digital liquid-level gauging systems |
-
1977
- 1977-10-14 FI FI773063A patent/FI57319C/fi not_active IP Right Cessation
-
1978
- 1978-10-09 ZA ZA00785694A patent/ZA785694B/xx unknown
- 1978-10-10 DE DE2844121A patent/DE2844121C2/de not_active Expired
- 1978-10-11 CA CA313,113A patent/CA1128129A/en not_active Expired
- 1978-10-12 IT IT28692/78A patent/IT1100121B/it active
- 1978-10-12 AU AU40675/78A patent/AU523345B2/en not_active Expired
- 1978-10-13 JP JP12521278A patent/JPS5498696A/ja active Pending
- 1978-10-13 BR BR7806786A patent/BR7806786A/pt unknown
- 1978-10-13 FR FR7829343A patent/FR2410280A1/fr active Granted
- 1978-10-16 GB GB7840632A patent/GB2006442B/en not_active Expired
-
1987
- 1987-06-08 JP JP1987087613U patent/JPH056544Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA1128129A (en) | 1982-07-20 |
JPS62201074U (fi) | 1987-12-22 |
FI773063A (fi) | 1979-04-15 |
FI57319B (fi) | 1980-03-31 |
JPH056544Y2 (fi) | 1993-02-19 |
IT7828692A0 (it) | 1978-10-12 |
ZA785694B (en) | 1979-09-26 |
GB2006442B (en) | 1982-04-28 |
DE2844121A1 (de) | 1979-04-19 |
JPS5498696A (en) | 1979-08-03 |
FR2410280A1 (fr) | 1979-06-22 |
AU523345B2 (en) | 1982-07-22 |
IT1100121B (it) | 1985-09-28 |
FI57319C (fi) | 1980-07-10 |
BR7806786A (pt) | 1979-05-15 |
AU4067578A (en) | 1980-04-17 |
FR2410280B1 (fi) | 1984-01-06 |
GB2006442A (en) | 1979-05-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2844121C2 (de) | Einrichtung zur Messung von kleinen Kapazitäten | |
DE3133239C2 (fi) | ||
DE2062073A1 (de) | Integrationsgenerator zur Angabe des Numerus einer loganthmischen Funktion | |
DE2600023C2 (de) | Vorrichtung zur Bestimmung der Standardabweichung von Meßwerten eines Gegenstandsmerkmals von einem Zielwert | |
DE2844120C2 (de) | Elektronischer Auswahlschalter für die Fernmessung von Impedanzen | |
DE3020328A1 (de) | Beschleunigungsmessgeraet | |
DE3101994A1 (de) | Verfahren und einrichtung zur messung eines elektrischen widerstandes | |
DE2822467C2 (fi) | ||
DE2534955A1 (de) | Verfahren und vorrichtung zur ermittlung der groessenverteilung in einem teilchensystem | |
DE2855482C3 (de) | Verfahren zur Auswertung des Diagonalsignals einer Widerstandsbrücke und Vorrichtung zur Durchführung des Verfahrens | |
DE3715163A1 (de) | Elektrische pruefschaltung | |
DE3033174C2 (de) | Leseverstärker für einen Bipolar-Speicherbaustein | |
DE2012376C3 (de) | Schaltungsanordnung zum Unterscheiden zwischen unterschiedlichen metallischen Gegenständen, insbesondere Münzen | |
DE1438969A1 (de) | Gleichstromregelungsgeraet | |
DE19930149B4 (de) | Verfahren zum Messen einer elektrischen Spannung und Anordnungen zur Durchführung der Verfahren | |
DE2547746C3 (de) | Vorrichtung zur Bildung des arithmetischen Mittelwertes einer Meßgröße | |
DE2428082B2 (de) | Schaltungsanordnung zur Eichung einer Meßanordnung zur Volumen-Messung von Partikeln | |
DE2421265A1 (de) | Verfahren und vorrichtung zur amplitudenmodifikation bei der teilchenmessung | |
DE2434381A1 (de) | Anordnung zur photometrischen analyse von einem oder mehreren stoffen | |
CH649846A5 (en) | Circuit for electronic phase-sequence indication | |
DE2405567B2 (de) | Anordnung zur messung der in einem bestimmten zeitraum an einer stelle auftretenden bestrahlungsenergie | |
DE742986C (de) | Schaltungsanordnung zur Messung der Differenz von Schaltzeiten elektromagnetischer Relais | |
DE4034699C1 (en) | Resistance measuring circuit using voltage transducer - has operational amplifier with non-inverted input connected to reference voltage source | |
DE662516C (de) | Vorrichtung zur Messung der Wasserstoffionenkonzentration | |
DE2347692C2 (de) | Demodulator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAR | Request for search filed | ||
OB | Request for examination as to novelty | ||
OC | Search report available | ||
OD | Request for examination | ||
D2 | Grant after examination | ||
8328 | Change in the person/name/address of the agent |
Free format text: SCHWABE, H., DIPL.-ING. SANDMAIR, K., DIPL.-CHEM. DR.JUR. DR.RER.NAT., PAT.-ANW., 8000 MUENCHEN |
|
8339 | Ceased/non-payment of the annual fee |