IT1251646B - MEASURING DEVICE FOR THE ELECTRICAL DETECTION OF A POSITIONING ANGLE. - Google Patents

MEASURING DEVICE FOR THE ELECTRICAL DETECTION OF A POSITIONING ANGLE.

Info

Publication number
IT1251646B
IT1251646B ITMI912867A ITMI912867A IT1251646B IT 1251646 B IT1251646 B IT 1251646B IT MI912867 A ITMI912867 A IT MI912867A IT MI912867 A ITMI912867 A IT MI912867A IT 1251646 B IT1251646 B IT 1251646B
Authority
IT
Italy
Prior art keywords
positioning angle
measuring device
electrode
angular electrodes
electrodes
Prior art date
Application number
ITMI912867A
Other languages
Italian (it)
Inventor
Rolf Cremers
Manfred Barth
Helmut Inhoff
Original Assignee
Valeo Borg Instr Verw Gmbh
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
Priority claimed from DE19904034991 external-priority patent/DE4034991A1/en
Application filed by Valeo Borg Instr Verw Gmbh filed Critical Valeo Borg Instr Verw Gmbh
Publication of ITMI912867A0 publication Critical patent/ITMI912867A0/en
Publication of ITMI912867A1 publication Critical patent/ITMI912867A1/en
Application granted granted Critical
Publication of IT1251646B publication Critical patent/IT1251646B/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/14—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit
    • H03M1/143—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit in pattern-reading type converters, e.g. having both absolute and incremental tracks on one disc or strip
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type
    • H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
    • H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
    • H03M1/30—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental
    • H03M1/301—Constructional details of parts relevant to the encoding mechanism, e.g. pattern carriers, pattern sensors

Abstract

In un dispositivo di misurazione per il rilevemento di un angolo di posizionamento di un organo regolatore girevole attorno ad un asse di rotazione, in particolare di una farfalla di motore endotermico per autoveicolo, sono previsti in una scatola (1) un disco rotante (11) e un suppor to (13) fisso di fronte ad esso. Per rilevare, senza contatto e digitalmente, un determinato angolo di posizionamento in un campo di misura grossolano e in un campo di misura fine, una disposizione elettrodica (28) del supporto (13) presenta vari elettrodi angolari (29) per la misurazione grossolana, vari elettrodi angolari (31) per la misurazione fine e un elettodo di lettura (30). Una disposizione elettrodica (36) del disco rotante (11) accoppia, in base all'angolo di posizionamento, elettrodi angolari (29, 31) all'elettrodo di lettura (30). Un circuito di valutazione (15) applica ciclicamente un segnale agli elettrodi angolari (29) e rileva ciclicamente sull'elettrodo di lettura (30) l'accoppiamento capacitivo presente, o meno, di detto segnale. (Figura 2)In a measuring device for detecting a positioning angle of a regulating member rotatable around an axis of rotation, in particular of an internal combustion engine butterfly for a motor vehicle, a rotating disk (11) is provided in a box (1) and a fixed support (13) in front of it. To detect, without contact and digitally, a certain positioning angle in a coarse measuring range and in a fine measuring range, an electrode arrangement (28) of the support (13) has various angular electrodes (29) for coarse measurement, various angular electrodes (31) for fine measurement and a reading electrode (30). An electrode arrangement (36) of the rotating disk (11) couples, based on the positioning angle, angular electrodes (29, 31) to the reading electrode (30). An evaluation circuit (15) cyclically applies a signal to the angular electrodes (29) and cyclically detects on the reading electrode (30) the capacitive coupling present, or not, of said signal. (Figure 2)

ITMI912867A 1990-11-03 1991-10-29 MEASURING DEVICE FOR THE ELECTRICAL DETECTION OF A POSITIONING ANGLE. IT1251646B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904034991 DE4034991A1 (en) 1990-11-03 1990-11-03 Arrangement for electrical detection of position angle - has capacitive electrode arrangements on fixed carrier and rotatable disc, esp. for IC engine choke flap
DE4118218A DE4118218A1 (en) 1990-11-03 1991-06-04 Digital measuring of rotation angle for adjusting screw

Publications (3)

Publication Number Publication Date
ITMI912867A0 ITMI912867A0 (en) 1991-10-29
ITMI912867A1 ITMI912867A1 (en) 1993-04-29
IT1251646B true IT1251646B (en) 1995-05-17

Family

ID=25898221

Family Applications (2)

Application Number Title Priority Date Filing Date
IT000943U ITMI910943U1 (en) 1990-11-03 1991-10-29 MEASURING DEVICE FOR THE ELECTRICAL DETECTION OF A POSITIONING ANGLE
ITMI912867A IT1251646B (en) 1990-11-03 1991-10-29 MEASURING DEVICE FOR THE ELECTRICAL DETECTION OF A POSITIONING ANGLE.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
IT000943U ITMI910943U1 (en) 1990-11-03 1991-10-29 MEASURING DEVICE FOR THE ELECTRICAL DETECTION OF A POSITIONING ANGLE

Country Status (3)

Country Link
DE (1) DE4118218A1 (en)
FR (1) FR2668822A1 (en)
IT (2) ITMI910943U1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH689190A5 (en) * 1993-10-19 1998-11-30 Hans Ulrich Meyer Instrument for measuring lengths or angles.
DE19728349A1 (en) 1997-07-03 1999-01-07 Telefunken Microelectron Sensor arrangement and engine control device for an internal combustion engine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961318A (en) * 1975-01-17 1976-06-01 Inductosyn Corporation Electrostatic position-measuring transducer
PL124768B1 (en) * 1978-12-16 1983-02-28 Inst Geodezji I Kartografii Capacitive converter of the device for measurement of angles
GB2097128B (en) * 1981-04-16 1984-12-12 Medwin Albert H Electrical vernier measuring apparatus
JPS6093312A (en) * 1983-10-27 1985-05-25 Mitsutoyo Mfg Co Ltd Capacity type measuring machine of displacement
JPS6093311A (en) * 1983-10-27 1985-05-25 Mitsutoyo Mfg Co Ltd Capacity type measuring machine of displacement
DE3342940A1 (en) * 1983-11-26 1985-06-05 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut MULTI-STAGE ANGLE ENCODER
DE3637529A1 (en) * 1986-09-02 1988-03-17 Hengstler Gmbh CAPACITIVE LINEAR OR ENCODER FOR CONTROLLING AND POSITIONING MOVING OBJECTS
FR2607246B1 (en) * 1986-11-21 1990-05-04 Thomson Csf HIGH-PRECISION ANGULAR OR LINEAR POSITION SENSORS WITH CAPACITIVE COUPLING
DE4009977A1 (en) * 1989-04-04 1990-10-11 Hoerbiger Ventilwerke Ag Capacitive length or angle measurement arrangement - has transmission, transfer and receiver electrodes giving high degree of linearity

Also Published As

Publication number Publication date
DE4118218A1 (en) 1992-12-10
ITMI910943V0 (en) 1991-10-29
ITMI912867A0 (en) 1991-10-29
FR2668822A1 (en) 1992-05-07
FR2668822B1 (en) 1994-12-16
ITMI910943U1 (en) 1992-05-04
ITMI912867A1 (en) 1993-04-29

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971007