FR2274973A1 - Codeur de position a couplage capacitif differentiel - Google Patents

Codeur de position a couplage capacitif differentiel

Info

Publication number
FR2274973A1
FR2274973A1 FR7514478A FR7514478A FR2274973A1 FR 2274973 A1 FR2274973 A1 FR 2274973A1 FR 7514478 A FR7514478 A FR 7514478A FR 7514478 A FR7514478 A FR 7514478A FR 2274973 A1 FR2274973 A1 FR 2274973A1
Authority
FR
France
Prior art keywords
capacitive coupling
coupling position
position encoder
differential capacitive
differential
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.)
Granted
Application number
FR7514478A
Other languages
English (en)
Other versions
FR2274973B1 (fr
Inventor
Donald R Dobson
Robert A Williams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2274973A1 publication Critical patent/FR2274973A1/fr
Application granted granted Critical
Publication of FR2274973B1 publication Critical patent/FR2274973B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J19/00—Character- or line-spacing mechanisms
    • B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
    • B41J19/20—Positive-feed character-spacing mechanisms
    • B41J19/202—Drive control means for carriage movement
    • B41J19/205—Position or speed detectors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J19/00—Character- or line-spacing mechanisms
    • B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
    • B41J19/20—Positive-feed character-spacing mechanisms
    • B41J19/202—Drive control means for carriage movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J19/00—Character- or line-spacing mechanisms
    • B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
    • B41J19/20—Positive-feed character-spacing mechanisms
    • B41J19/202—Drive control means for carriage movement
    • B41J19/205—Position or speed detectors therefor
    • B41J19/207—Encoding along a bar
FR7514478A 1974-06-17 1975-04-30 Codeur de position a couplage capacitif differentiel Granted FR2274973A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/480,088 US3938113A (en) 1974-06-17 1974-06-17 Differential capacitive position encoder

Publications (2)

Publication Number Publication Date
FR2274973A1 true FR2274973A1 (fr) 1976-01-09
FR2274973B1 FR2274973B1 (fr) 1977-04-15

Family

ID=23906635

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7514478A Granted FR2274973A1 (fr) 1974-06-17 1975-04-30 Codeur de position a couplage capacitif differentiel

Country Status (12)

Country Link
US (1) US3938113A (fr)
JP (1) JPS5716693B2 (fr)
AU (1) AU8029775A (fr)
BE (1) BE829420A (fr)
BR (1) BR7503797A (fr)
CA (1) CA1053777A (fr)
DE (1) DE2523163A1 (fr)
DK (1) DK271175A (fr)
FR (1) FR2274973A1 (fr)
IT (1) IT1037480B (fr)
NL (1) NL7505628A (fr)
SE (1) SE403830B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2298079A1 (fr) * 1975-01-17 1976-08-13 Farrand Ind Inc Transducteur de position
FR2553532A1 (fr) * 1983-10-12 1985-04-19 Varian Associates Dispositif capacitif d'alignement de masque
WO1985003036A1 (fr) * 1984-01-12 1985-07-18 Ncr Corporation Organe indicateur de position pour un dispositif commande electriquement tel qu'une imprimante

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE411392B (sv) * 1977-12-09 1979-12-17 Inst Mikrovagsteknik Vid Tekni Metanordning for kapacitiv bestemning av det inbordes leget hos tva relativt varandra rorliga delar
DE2830432C2 (de) * 1978-07-11 1982-04-22 Jürgen Ing.(grad.) 8019 Ebersberg Machate Meßvorrichtung für Längen- oder Winkelmessung
US4292632A (en) * 1978-08-29 1981-09-29 Yeakley Lester M Displacement sensing device having capacitance transduction element
US4418347A (en) * 1978-12-27 1983-11-29 Nippon Soken, Inc. Rotational position detecting apparatus
JPS601563B2 (ja) * 1978-12-27 1985-01-16 株式会社日本自動車部品総合研究所 回転検出装置
DK143423C (da) 1979-03-22 1981-12-21 Brueel & Kjaer As Strimmelskriver med en differentialkondensator som positionsgiver til en positionsservo for skrivepennen
FI61100C (fi) * 1980-07-11 1982-05-10 Eflab Oy Kapacitiv staellningsgivare
US4374383A (en) * 1980-12-22 1983-02-15 International Business Machines Corporation Capacitive transducer for sensing a home position
JPS6038221Y2 (ja) * 1981-01-22 1985-11-14 株式会社日本自動車部品総合研究所 静電容量式回転検出器
JPS57148262A (en) * 1981-03-09 1982-09-13 Nippon Soken Inc Detecting device for rotating direction
US4499465A (en) * 1981-03-18 1985-02-12 Nippon Soken, Inc. Capacitive-type incremental and reference angular rotation detecting apparatus
US4475829A (en) * 1981-04-30 1984-10-09 International Business Machines Corporation Capacitive metering means for uniform ribbon feed and take-up mechanism
US4404560A (en) * 1981-05-07 1983-09-13 International Business Machines Corporation Capacitive transducer for providing precise angular positional information
JPS5841311A (ja) * 1981-09-07 1983-03-10 Nippon Soken Inc 静電容量式回転検出装置
WO1983002352A1 (fr) * 1981-12-30 1983-07-07 Straus Associates Dash Liaison a haute vitesse pour affichage rotatif
US4429307A (en) 1982-01-29 1984-01-31 Dataproducts Corporation Capacitive transducer with continuous sinusoidal output
CH648929A5 (fr) * 1982-07-07 1985-04-15 Tesa Sa Dispositif de mesure capacitif de deplacement.
US4631524A (en) * 1983-05-02 1986-12-23 Computer Memories, Inc. Capacitive encoder having multiple precision outputs
US4720698A (en) * 1983-05-02 1988-01-19 Computer Memories, Inc. Capacitive encoder having multiple precision outputs
US4606008A (en) * 1983-07-25 1986-08-12 Cain Encoder Company Angular position detector
US4607213A (en) * 1983-10-12 1986-08-19 Varian Associates, Inc. Shielded capacitive mask aligner
US4654581A (en) * 1983-10-12 1987-03-31 Hewlett-Packard Company Capacitive mask aligner
JPS6093311A (ja) * 1983-10-27 1985-05-25 Mitsutoyo Mfg Co Ltd 容量式変位測定機
JPS6093312A (ja) * 1983-10-27 1985-05-25 Mitsutoyo Mfg Co Ltd 容量式変位測定機
US4522517A (en) * 1983-11-10 1985-06-11 Wade Kenneth B Encoder system for dot matrix line printer
US4586260A (en) * 1984-05-29 1986-05-06 The L. S. Starrett Company Capacitive displacement measuring instrument
CN85100991B (zh) * 1985-04-01 1987-06-10 西安仪表厂 电容式位置传感器
DE3943483C2 (de) * 1988-06-30 1998-09-24 Asahi Optical Co Ltd Fotographisches Objektiv mit motorisch veränderbarer Brennweite
FI82146C (fi) * 1988-07-13 1991-01-10 Labsystems Oy Positionsindikator foer en skiva.
GB2223589B (en) * 1988-09-14 1991-07-24 Valk Rob V D Measurement of capacitance and parameters related thereto
US5008619A (en) * 1988-11-18 1991-04-16 Amp-Akzo Corporation Multilevel circuit board precision positioning
US4958115A (en) * 1988-11-28 1990-09-18 At&T Bell Laboratories Capacitively commutated brushless DC servomotors
US5028875A (en) * 1989-04-27 1991-07-02 Texas Tech University Linear rotary differential capacitance transducer
US5012237A (en) * 1989-05-26 1991-04-30 Cummins Electronics Company, Inc. Reflected electrostatic field angle resolver
US5414420A (en) * 1992-03-23 1995-05-09 Hewlett-Packard Corporation Switch interconnect for position encoder system
US5428355A (en) * 1992-03-23 1995-06-27 Hewlett-Packard Corporation Position encoder system
DE19803642A1 (de) * 1998-02-02 1999-09-30 Reinhard Wiesemann Kapazitiver Sensor
DE19910416A1 (de) * 1999-03-10 2000-09-14 Bosch Gmbh Robert Vorrichtung zum Erfassen von Signalen an einer Zündanlage
DE19954267A1 (de) * 1999-07-30 2001-08-02 Univ Ilmenau Tech Verfahren zur automatischen Einstellung der Schaltschwelle kapazitiver sowie induktiver Näherungssensoren
US6587093B1 (en) 1999-11-04 2003-07-01 Synaptics Incorporated Capacitive mouse
DE10048881A1 (de) * 2000-09-29 2002-03-07 Infineon Technologies Ag Vorrichtung und Verfahren zum planen Verbinden zweier Wafer für ein Dünnschleifen und ein Trennen eines Produkt-Wafers
US20060176189A1 (en) * 2005-02-06 2006-08-10 David Bar-On Two Dimensional Layout, High Noise Immunity, Interleaved Channels Electrostatic Encoder
EP2064536A4 (fr) * 2006-08-28 2012-05-30 Detection Systems Pty Ltd Appareil et procédé de détection pour une chaîne de production
WO2009010064A2 (fr) * 2007-07-17 2009-01-22 Shelltec A/S Procédés et systèmes pour détecter la présence, déterminer la position ou la dimension ou détecter des changements de propriétés matérielles d'un objet dans un espace prédéfini
US8584522B2 (en) 2010-04-30 2013-11-19 Qualcomm Mems Technologies, Inc. Micromachined piezoelectric x-axis gyroscope
US9092082B2 (en) 2010-12-22 2015-07-28 Synaptics Incorporated Methods and apparatus for mounting a touch sensor device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674729A (en) * 1950-04-13 1954-04-06 Edward G Martin Measuring apparatus
US3219920A (en) * 1961-04-05 1965-11-23 Whittaker Corp Transducer employing a guard ring between input and output means to reduce stray capacitances
GB1040044A (en) * 1961-10-27 1966-08-24 Sogenique Electronics Ltd Improvements in or relating to potentiometers
US3732553A (en) * 1971-04-16 1973-05-08 Spearhead Inc Capacitive pick-off transducer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2298079A1 (fr) * 1975-01-17 1976-08-13 Farrand Ind Inc Transducteur de position
FR2553532A1 (fr) * 1983-10-12 1985-04-19 Varian Associates Dispositif capacitif d'alignement de masque
WO1985003036A1 (fr) * 1984-01-12 1985-07-18 Ncr Corporation Organe indicateur de position pour un dispositif commande electriquement tel qu'une imprimante

Also Published As

Publication number Publication date
IT1037480B (it) 1979-11-10
BE829420A (fr) 1975-09-15
JPS5716693B2 (fr) 1982-04-06
NL7505628A (nl) 1975-12-19
BR7503797A (pt) 1976-07-06
DE2523163A1 (de) 1976-01-02
SE403830B (sv) 1978-09-04
FR2274973B1 (fr) 1977-04-15
JPS511028A (fr) 1976-01-07
DK271175A (da) 1975-12-18
CA1053777A (fr) 1979-05-01
SE7505940L (sv) 1975-12-18
US3938113A (en) 1976-02-10
AU8029775A (en) 1976-10-21

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