FR2400184A1 - DIGITAL POSITION MEASUREMENT DEVICE - Google Patents

DIGITAL POSITION MEASUREMENT DEVICE

Info

Publication number
FR2400184A1
FR2400184A1 FR7823324A FR7823324A FR2400184A1 FR 2400184 A1 FR2400184 A1 FR 2400184A1 FR 7823324 A FR7823324 A FR 7823324A FR 7823324 A FR7823324 A FR 7823324A FR 2400184 A1 FR2400184 A1 FR 2400184A1
Authority
FR
France
Prior art keywords
counter
control device
scale
zero
zero point
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
FR7823324A
Other languages
French (fr)
Other versions
FR2400184B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2400184A1 publication Critical patent/FR2400184A1/en
Application granted granted Critical
Publication of FR2400184B1 publication Critical patent/FR2400184B1/fr
Granted legal-status Critical Current

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
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/06—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for operation by a null method
    • 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
    • G01D5/2454—Encoders incorporating incremental and absolute signals
    • G01D5/2455—Encoders incorporating incremental and absolute signals with incremental and absolute tracks on the same encoder
    • G01D5/2457—Incremental encoders having reference marks
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
    • G05B19/21—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Automation & Control Theory (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Optical Transform (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

Two counters (13, 22) are provided in a digital position-measuring device having an incremental scale, an adjustable reading unit (1) for photoelectric scanning of this scale, and a variation stage (5) which controls a display or control device (14). One counter (13) can be set automatically to zero via a mark on the scale and a resetting control device when the mark is passed over by the reading unit. Provided for the second counter (22) is a zeroing key (23) which permits the counter (22) to be reset to zero at any point, so that one counter (13) operates from a fixed zero point and the other counter (22) operates from an arbitrarily selectable zero point. The counters (13, 22) can optionally be connected to a display or control device (14) by a changeover switch (25). An emergency power supply device is provided so as to obtain the selected zero point for the arbitrarily settable counter (22) even in the case of power failure or in the case of the measuring device being switched off.
FR7823324A 1977-08-12 1978-08-08 DIGITAL POSITION MEASUREMENT DEVICE Granted FR2400184A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0586177A AT363557B (en) 1977-08-12 1977-08-12 DIGITAL POSITION MEASURING DEVICE, IN PARTICULAR LENGTH MEASURING DEVICE ON MACHINE TOOLS

Publications (2)

Publication Number Publication Date
FR2400184A1 true FR2400184A1 (en) 1979-03-09
FR2400184B1 FR2400184B1 (en) 1985-03-15

Family

ID=3580334

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7823324A Granted FR2400184A1 (en) 1977-08-12 1978-08-08 DIGITAL POSITION MEASUREMENT DEVICE

Country Status (4)

Country Link
AT (1) AT363557B (en)
CH (1) CH630725A5 (en)
DE (1) DE2747208A1 (en)
FR (1) FR2400184A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1014199A3 (en) * 1998-12-24 2004-10-20 Canon Kabushiki Kaisha Stage control apparatus and exposure apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3601523C1 (en) * 1986-01-20 1987-07-16 Manfred Richter Process for positioning and measuring workpieces on machining lines
DE4011411C2 (en) * 1990-04-09 1993-09-30 Heidenhain Gmbh Dr Johannes Incremental position measuring system
DE19521368B4 (en) * 1995-06-12 2007-03-22 Afs Federhenn Maschinen Gmbh Device for detecting measured variables

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2009884A1 (en) * 1968-05-14 1970-02-13 Inductosyn Corp
GB1183604A (en) * 1966-04-12 1970-03-11 Olivetti & Co Spa Improvements in or relating to Digital Position Measuring Devices
GB1302762A (en) * 1970-02-06 1973-01-10

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1183604A (en) * 1966-04-12 1970-03-11 Olivetti & Co Spa Improvements in or relating to Digital Position Measuring Devices
FR2009884A1 (en) * 1968-05-14 1970-02-13 Inductosyn Corp
GB1302762A (en) * 1970-02-06 1973-01-10

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1014199A3 (en) * 1998-12-24 2004-10-20 Canon Kabushiki Kaisha Stage control apparatus and exposure apparatus

Also Published As

Publication number Publication date
AT363557B (en) 1981-08-10
CH630725A5 (en) 1982-06-30
FR2400184B1 (en) 1985-03-15
ATA586177A (en) 1978-11-15
DE2747208A1 (en) 1979-02-15

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Legal Events

Date Code Title Description
ST Notification of lapse