WO2002031432A3 - Capacitive displacement encoder - Google Patents
Capacitive displacement encoder Download PDFInfo
- Publication number
- WO2002031432A3 WO2002031432A3 PCT/IL2001/000932 IL0100932W WO0231432A3 WO 2002031432 A3 WO2002031432 A3 WO 2002031432A3 IL 0100932 W IL0100932 W IL 0100932W WO 0231432 A3 WO0231432 A3 WO 0231432A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- transmitter
- receiver
- fields
- capacitive displacement
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
- G01D5/241—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes
- G01D5/2412—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying overlap
- G01D5/2415—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying overlap adapted for encoders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/245—Housings for sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
- G01D2205/70—Position sensors comprising a moving target with particular shapes, e.g. of soft magnetic targets
- G01D2205/73—Targets mounted eccentrically with respect to the axis of rotation
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002210873A AU2002210873A1 (en) | 2000-10-12 | 2001-10-07 | Capacitive displacement encoder |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/294,749 US6492911B1 (en) | 1999-04-19 | 1999-04-19 | Capacitive displacement encoder |
IL13898300A IL138983A0 (en) | 2000-10-12 | 2000-10-12 | Capacitive displacement encoder |
IL138983 | 2000-10-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002031432A2 WO2002031432A2 (en) | 2002-04-18 |
WO2002031432A3 true WO2002031432A3 (en) | 2002-09-12 |
Family
ID=11074731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IL2001/000932 WO2002031432A2 (en) | 1999-04-19 | 2001-10-07 | Capacitive displacement encoder |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2002210873A1 (en) |
IL (1) | IL138983A0 (en) |
WO (1) | WO2002031432A2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7423176B2 (en) * | 2004-04-13 | 2008-09-09 | Cephalon, Inc. | Bicyclic aromatic sulfinyl derivatives |
EP2330388B1 (en) * | 2009-12-04 | 2013-09-04 | Hengstler GmbH | Method of determining an absolute angle of rotation of a capacitive motion encoder |
DE102010050608A1 (en) | 2010-11-05 | 2012-05-10 | Hengstler Gmbh | Capacitive rotation sensor |
DE102012218890A1 (en) * | 2012-10-17 | 2014-04-17 | Dr. Johannes Heidenhain Gmbh | Absolute position measuring device |
US11567471B2 (en) | 2021-06-28 | 2023-01-31 | Stmicroelectronics (China) Investment Co. | Digital resolver decoder with hardware filter and rectifier |
Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3312892A (en) * | 1964-05-04 | 1967-04-04 | Technology Instr Corp Of Calif | Contactless electrical transducer having moving parts |
US3668672A (en) * | 1970-11-13 | 1972-06-06 | Bausch & Lomb | Capacitive transducer |
US3732553A (en) * | 1971-04-16 | 1973-05-08 | Spearhead Inc | Capacitive pick-off transducer |
US3845377A (en) * | 1972-04-20 | 1974-10-29 | Nihon Regulator Kk | Rotational angle transducer |
US3961318A (en) * | 1975-01-17 | 1976-06-01 | Inductosyn Corporation | Electrostatic position-measuring transducer |
US4092579A (en) * | 1976-12-15 | 1978-05-30 | Contraves Goerz Corporation | Brushless printed circuit resolver |
US4238781A (en) * | 1979-02-09 | 1980-12-09 | Westinghouse Electric Corp. | Capacitive angular displacement transducer for remote meter reading |
US4429307A (en) * | 1982-01-29 | 1984-01-31 | Dataproducts Corporation | Capacitive transducer with continuous sinusoidal output |
US4586260A (en) * | 1984-05-29 | 1986-05-06 | The L. S. Starrett Company | Capacitive displacement measuring instrument |
US4788546A (en) * | 1984-10-29 | 1988-11-29 | Mitutoyo Mfg. Co., Ltd. | Electrostatic capacity type encoder |
US4850835A (en) * | 1986-09-15 | 1989-07-25 | Werner & Pfleiderer Gmbh | Cooling device for plastic granulate |
US4906992A (en) * | 1988-02-22 | 1990-03-06 | Dynamics Research Corporation | Single track absolute encoder |
US4947166A (en) * | 1988-02-22 | 1990-08-07 | Dynamics Research Corporation | Single track absolute encoder |
US5172039A (en) * | 1991-09-16 | 1992-12-15 | Staodyn, Inc. | Device utilizing capacitive coupling to provide an output indicative of angular relationship |
US5519393A (en) * | 1993-07-22 | 1996-05-21 | Bouens, Inc. | Absolute digital position encoder with multiple sensors per track |
US5598153A (en) * | 1991-12-30 | 1997-01-28 | Brasseur; Georg | Capacitive angular displacement transducer |
US5880683A (en) * | 1993-07-22 | 1999-03-09 | Bourns, Inc. | Absolute digital position encoder |
US6118283A (en) * | 1997-10-20 | 2000-09-12 | Methode Electronics, Inc. | Capacitive rotary position sensor |
US6170162B1 (en) * | 1999-05-27 | 2001-01-09 | Sarcos, L.C. | Rotary displacement system using differential measuring |
-
2000
- 2000-10-12 IL IL13898300A patent/IL138983A0/en unknown
-
2001
- 2001-10-07 AU AU2002210873A patent/AU2002210873A1/en not_active Abandoned
- 2001-10-07 WO PCT/IL2001/000932 patent/WO2002031432A2/en active Application Filing
Patent Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3312892A (en) * | 1964-05-04 | 1967-04-04 | Technology Instr Corp Of Calif | Contactless electrical transducer having moving parts |
US3668672A (en) * | 1970-11-13 | 1972-06-06 | Bausch & Lomb | Capacitive transducer |
US3732553A (en) * | 1971-04-16 | 1973-05-08 | Spearhead Inc | Capacitive pick-off transducer |
US3845377A (en) * | 1972-04-20 | 1974-10-29 | Nihon Regulator Kk | Rotational angle transducer |
US3961318A (en) * | 1975-01-17 | 1976-06-01 | Inductosyn Corporation | Electrostatic position-measuring transducer |
US4092579A (en) * | 1976-12-15 | 1978-05-30 | Contraves Goerz Corporation | Brushless printed circuit resolver |
US4238781A (en) * | 1979-02-09 | 1980-12-09 | Westinghouse Electric Corp. | Capacitive angular displacement transducer for remote meter reading |
US4429307A (en) * | 1982-01-29 | 1984-01-31 | Dataproducts Corporation | Capacitive transducer with continuous sinusoidal output |
US4586260A (en) * | 1984-05-29 | 1986-05-06 | The L. S. Starrett Company | Capacitive displacement measuring instrument |
US4788546A (en) * | 1984-10-29 | 1988-11-29 | Mitutoyo Mfg. Co., Ltd. | Electrostatic capacity type encoder |
US4850835A (en) * | 1986-09-15 | 1989-07-25 | Werner & Pfleiderer Gmbh | Cooling device for plastic granulate |
US4906992A (en) * | 1988-02-22 | 1990-03-06 | Dynamics Research Corporation | Single track absolute encoder |
US4947166A (en) * | 1988-02-22 | 1990-08-07 | Dynamics Research Corporation | Single track absolute encoder |
US5172039A (en) * | 1991-09-16 | 1992-12-15 | Staodyn, Inc. | Device utilizing capacitive coupling to provide an output indicative of angular relationship |
US5598153A (en) * | 1991-12-30 | 1997-01-28 | Brasseur; Georg | Capacitive angular displacement transducer |
US5519393A (en) * | 1993-07-22 | 1996-05-21 | Bouens, Inc. | Absolute digital position encoder with multiple sensors per track |
US5880683A (en) * | 1993-07-22 | 1999-03-09 | Bourns, Inc. | Absolute digital position encoder |
US6118283A (en) * | 1997-10-20 | 2000-09-12 | Methode Electronics, Inc. | Capacitive rotary position sensor |
US6170162B1 (en) * | 1999-05-27 | 2001-01-09 | Sarcos, L.C. | Rotary displacement system using differential measuring |
Also Published As
Publication number | Publication date |
---|---|
AU2002210873A1 (en) | 2002-04-22 |
WO2002031432A2 (en) | 2002-04-18 |
IL138983A0 (en) | 2001-11-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0435607B1 (en) | Transponder | |
WO2002025217A1 (en) | Rotating angle detector | |
AU3948799A (en) | Position sensor | |
CA2352398A1 (en) | Low phase noise frequency converter | |
SE8900281D0 (en) | SET FOR FAST SPEED CONTROL OF A COHERENT RADIO RECEIVER AND DEVICE FOR EXERCISE OF THE SET | |
EP0691746A4 (en) | ||
CA2059497A1 (en) | Spread spectrum signal receiving apparatus | |
EP0394064A3 (en) | Direct conversion receiver with dithering local carrier frequency for detecting transmitted carrier frequency | |
CA1170746A (en) | Rotor measurement system using reflected load transmission | |
GB2311136A8 (en) | Angular rotation rate detector | |
EP1288849A3 (en) | Position detector | |
EP0821489A3 (en) | PLL circuit of display monitor | |
EP1093993A3 (en) | Rotation angle detection apparatus | |
WO2003067751A3 (en) | Digital phase locked loop | |
WO2002031432A3 (en) | Capacitive displacement encoder | |
US20060023777A1 (en) | Signal transmission | |
WO2001043295A3 (en) | Receiver circuit | |
AUPM587094A0 (en) | Microwave loop oscillators | |
EP0231071A3 (en) | A phased array transmitter | |
GB2001222A (en) | Sensor of angular position having a digital output | |
US5508696A (en) | Rotational position-detecting device | |
CA2080323A1 (en) | Method and circuit for detecting burst signal | |
EP0238236B1 (en) | Improvements relating to magnetrons | |
CA2341873A1 (en) | Carrier reproducing circuit | |
Tapson | Wavemode locking: a new measurement modality for proximity sensors |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
122 | Ep: pct application non-entry in european phase | ||
NENP | Non-entry into the national phase |
Ref country code: JP |