ES2086871T3 - Sistema capacitivo para detectar posiciones. - Google Patents

Sistema capacitivo para detectar posiciones.

Info

Publication number
ES2086871T3
ES2086871T3 ES93203004T ES93203004T ES2086871T3 ES 2086871 T3 ES2086871 T3 ES 2086871T3 ES 93203004 T ES93203004 T ES 93203004T ES 93203004 T ES93203004 T ES 93203004T ES 2086871 T3 ES2086871 T3 ES 2086871T3
Authority
ES
Spain
Prior art keywords
incrementally
electrodes
codes
detect positions
capacitive system
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 - Lifetime
Application number
ES93203004T
Other languages
English (en)
Inventor
Gabriel Lorimer Miller
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.)
AT&T Corp
Original Assignee
AT&T 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 AT&T Corp filed Critical AT&T Corp
Application granted granted Critical
Publication of ES2086871T3 publication Critical patent/ES2086871T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/02—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form
    • 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
    • G01D5/244—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 characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/245—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 characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
    • G01D5/2451—Incremental 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

UN SISTEMA DE MEDICION DE POSICION QUE CODIFICA INCREMENTALMENTE DE ALTA RESOLUCION BASADO EN LA CAPACITANCIA EMPLEA UNA RED DE ELECTRODOS DUPLICADOS IDENTICOS (15, 16, 17) QUE SON CONDUCIDOS AL UNISONO DESDE UNA FUENTE RF Y MONTADOS CERCA DE UN MEDIO DE PLANTILLA (POR EJEMPLO UNA CORREA DE TRANSMISION 98) DE TAMAÑO ARBITRASIO. EL MOVIMIENTO DE TAL MEDIO DE PLANTILLA (98) ES MONITORIZADO (EN 99) MIDIENDO TANTO LAS SUMAS COMO LAS DIFERENCIAS DE LAS CORRIENTES DE DESPLAZAMIENTO DE ELECTRODOS DE MANERA A EMITIR SEÑALES DE POSICION QUE CODIFICAN INCREMENTALMENTE. TAMBIEN SE PRESENTAN VARIAS TECNICAS PARA ELIMINAR LOS EFECTOS DE CAPACITANCIAS ESPUREAS.
ES93203004T 1988-05-24 1989-05-17 Sistema capacitivo para detectar posiciones. Expired - Lifetime ES2086871T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/197,800 US4893071A (en) 1988-05-24 1988-05-24 Capacitive incremental position measurement and motion control

Publications (1)

Publication Number Publication Date
ES2086871T3 true ES2086871T3 (es) 1996-07-01

Family

ID=22730820

Family Applications (2)

Application Number Title Priority Date Filing Date
ES93203004T Expired - Lifetime ES2086871T3 (es) 1988-05-24 1989-05-17 Sistema capacitivo para detectar posiciones.
ES89304973T Expired - Lifetime ES2065377T3 (es) 1988-05-24 1989-05-17 Medicion capacitiva de posicion incremental y control de movimiento.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES89304973T Expired - Lifetime ES2065377T3 (es) 1988-05-24 1989-05-17 Medicion capacitiva de posicion incremental y control de movimiento.

Country Status (11)

Country Link
US (1) US4893071A (es)
EP (2) EP0344942B1 (es)
JP (1) JPH083426B2 (es)
KR (1) KR0151854B1 (es)
AU (1) AU603952B2 (es)
CA (1) CA1324195C (es)
DE (2) DE68926355T2 (es)
DK (1) DK249189A (es)
ES (2) ES2086871T3 (es)
HK (2) HK188695A (es)
SG (1) SG26354G (es)

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US5239307A (en) * 1989-10-10 1993-08-24 Micro Encoder Inc. Method and apparatus for sensing of position
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US5237307A (en) * 1991-11-27 1993-08-17 The United States Of America As Represented By The United States Department Of Energy Non-contact tamper sensing by electronic means
JP2509067B2 (ja) * 1992-03-13 1996-06-19 エイ・ティ・アンド・ティ・コーポレーション デバイス作製方法および導電膜の共鳴周波数測定装置
US5337353A (en) * 1992-04-01 1994-08-09 At&T Bell Laboratories Capacitive proximity sensors
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US5463388A (en) * 1993-01-29 1995-10-31 At&T Ipm Corp. Computer mouse or keyboard input device utilizing capacitive sensors
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US6002250A (en) * 1996-05-13 1999-12-14 Mitutoyo Corporation Electronic linear scale using a self-contained, low-power inductive position transducer
US5973494A (en) * 1996-05-13 1999-10-26 Mitutoyo Corporation Electronic caliper using a self-contained, low power inductive position transducer
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US7583006B2 (en) * 2005-07-26 2009-09-01 Siimpel Corporation MEMS digital linear actuator
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Also Published As

Publication number Publication date
KR0151854B1 (ko) 1998-12-15
DK249189A (da) 1989-11-27
DK249189D0 (da) 1989-05-23
JPH083426B2 (ja) 1996-01-17
EP0586023A3 (en) 1994-04-13
EP0586023A2 (en) 1994-03-09
DE68920204T2 (de) 1995-05-11
AU603952B2 (en) 1990-11-29
CA1324195C (en) 1993-11-09
HK179896A (en) 1996-10-04
HK188695A (en) 1995-12-22
US4893071A (en) 1990-01-09
JPH0224512A (ja) 1990-01-26
ES2065377T3 (es) 1995-02-16
KR890017537A (ko) 1989-12-16
AU3404289A (en) 1989-11-30
EP0344942A3 (en) 1991-07-31
DE68926355D1 (de) 1996-05-30
EP0586023B1 (en) 1996-04-24
DE68926355T2 (de) 1996-11-28
EP0344942B1 (en) 1994-12-28
EP0344942A2 (en) 1989-12-06
DE68920204D1 (de) 1995-02-09
SG26354G (en) 1995-09-18

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