EP1224478A4 - Circuit d'interface de transducteur servant a evaluer une capacite et presentant de nombreuses possibilites de configuration - Google Patents
Circuit d'interface de transducteur servant a evaluer une capacite et presentant de nombreuses possibilites de configurationInfo
- Publication number
- EP1224478A4 EP1224478A4 EP00982671A EP00982671A EP1224478A4 EP 1224478 A4 EP1224478 A4 EP 1224478A4 EP 00982671 A EP00982671 A EP 00982671A EP 00982671 A EP00982671 A EP 00982671A EP 1224478 A4 EP1224478 A4 EP 1224478A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- interface circuit
- capacitive transducer
- highly configurable
- transducer interface
- configurable capacitive
- 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.)
- Withdrawn
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2506—Arrangements for conditioning or analysing measured signals, e.g. for indicating peak values ; Details concerning sampling, digitizing or waveform capturing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15983299P | 1999-10-15 | 1999-10-15 | |
US159832P | 1999-10-15 | ||
PCT/US2000/041207 WO2001031351A1 (fr) | 1999-10-15 | 2000-10-16 | Circuit d'interface de transducteur servant a evaluer une capacite et presentant de nombreuses possibilites de configuration |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1224478A1 EP1224478A1 (fr) | 2002-07-24 |
EP1224478A4 true EP1224478A4 (fr) | 2004-05-19 |
Family
ID=22574257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00982671A Withdrawn EP1224478A4 (fr) | 1999-10-15 | 2000-10-16 | Circuit d'interface de transducteur servant a evaluer une capacite et presentant de nombreuses possibilites de configuration |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1224478A4 (fr) |
JP (1) | JP4870889B2 (fr) |
WO (1) | WO2001031351A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005140657A (ja) * | 2003-11-07 | 2005-06-02 | Denso Corp | 静電容量型センサの容量変化検出回路 |
EP1548409A1 (fr) * | 2003-12-23 | 2005-06-29 | Dialog Semiconductor GmbH | Mesure de capacité différentielle |
US7368923B2 (en) * | 2005-12-22 | 2008-05-06 | Honeywell International Inc. | Time interval trimmed differential capacitance sensor |
GB0605717D0 (en) | 2006-03-21 | 2006-05-03 | Univ Sussex | Electric potential sensor |
EP2177880A1 (fr) * | 2008-10-16 | 2010-04-21 | Dialog Imaging Systems GmbH | Mesure de la distance à l'aide d'un capteur capacitif |
DE102009026496B4 (de) | 2009-05-27 | 2022-04-28 | Robert Bosch Gmbh | Kompensationskapazität für einen kapazitiven Sensor |
EP2653846A1 (fr) * | 2012-04-18 | 2013-10-23 | Nxp B.V. | Circuit de capteur et procédé d'étalonnage |
EP2653845B1 (fr) | 2012-04-18 | 2015-07-15 | Nxp B.V. | Circuit de capteur et procédé d'étalonnage |
US9228979B2 (en) * | 2012-06-01 | 2016-01-05 | Smiths Detection-Watford Limited | Capacitive transimpedance amplifier with offset |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0972757A (ja) * | 1995-09-01 | 1997-03-18 | Murata Mfg Co Ltd | 微少容量検出回路 |
EP0816818A2 (fr) * | 1996-06-26 | 1998-01-07 | Siemens Aktiengesellschaft | Capteur de mesure capacitive et circuit de sélection |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3682598D1 (de) * | 1985-02-13 | 1992-01-09 | Philips Nv | Elektrischer filter. |
US5557267A (en) * | 1993-04-23 | 1996-09-17 | Ade Corporation | Apparatus and methods for measurement system calibration |
US5537109A (en) * | 1993-05-28 | 1996-07-16 | General Scanning, Inc. | Capacitive transducing with feedback |
JP3216955B2 (ja) * | 1994-05-31 | 2001-10-09 | 株式会社日立製作所 | 容量式センサ装置 |
JPH08327392A (ja) * | 1995-05-30 | 1996-12-13 | Seikosha Co Ltd | 静電容量型センサ |
US5670887A (en) * | 1996-04-17 | 1997-09-23 | Mitutoyo Corporation | Method and apparatus for fast sampling in capacitive position transducers |
-
2000
- 2000-10-16 EP EP00982671A patent/EP1224478A4/fr not_active Withdrawn
- 2000-10-16 JP JP2001533437A patent/JP4870889B2/ja not_active Expired - Fee Related
- 2000-10-16 WO PCT/US2000/041207 patent/WO2001031351A1/fr not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0972757A (ja) * | 1995-09-01 | 1997-03-18 | Murata Mfg Co Ltd | 微少容量検出回路 |
EP0816818A2 (fr) * | 1996-06-26 | 1998-01-07 | Siemens Aktiengesellschaft | Capteur de mesure capacitive et circuit de sélection |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 07 31 July 1997 (1997-07-31) * |
See also references of WO0131351A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1224478A1 (fr) | 2002-07-24 |
JP4870889B2 (ja) | 2012-02-08 |
JP2004500557A (ja) | 2004-01-08 |
WO2001031351A1 (fr) | 2001-05-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20020515 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20040405 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: 7G 01D 3/02 B Ipc: 7G 01R 27/26 A Ipc: 7G 01D 5/24 B |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20040504 |