GB1002174A - An arrangement suitable for use in controlling or regulating longitudinal or rotational movements of a machine tool - Google Patents

An arrangement suitable for use in controlling or regulating longitudinal or rotational movements of a machine tool

Info

Publication number
GB1002174A
GB1002174A GB2692562A GB2692562A GB1002174A GB 1002174 A GB1002174 A GB 1002174A GB 2692562 A GB2692562 A GB 2692562A GB 2692562 A GB2692562 A GB 2692562A GB 1002174 A GB1002174 A GB 1002174A
Authority
GB
United Kingdom
Prior art keywords
gaps
scale
machine tool
windings
centre
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
Application number
GB2692562A
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Publication of GB1002174A publication Critical patent/GB1002174A/en
Expired 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
    • 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
    • G01D5/142—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 using Hall-effect devices
    • G01D5/147—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 using Hall-effect devices influenced by the movement of a third element, the position of Hall device and the source of magnetic field being fixed in respect to each other
    • 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
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/12—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers
    • G05B19/16—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers using magnetic record carriers

Landscapes

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

Abstract

1,002,174. Measuring displacement electrically. SIEMENS SCHUCKERTWERKE A.G. July 12, 1962 [July 12,1961], No.26925/62. Heading G1N. [Also in Division G3] An arrangement for measuring the displacement of e.g. a machine tool relative to a workpiece comprises two reading heads 1, 1a (Fig. 1) each consisting of an E-shaped core 4, 4a with an energizing winding on its centre limb 7, 7a, and the gaps 2, 2a, 3, 3a between the outer limbs and the centre limb of each head being spaced apart by a distance equal to an odd multiple of half the pitch of a scale formed by equally spaced magnetic portions 8 and gaps 9, the resultant flux in the centre limb being measured by Hall plates 6, 6a, or pickup coils. The spacing between the heads 1, 1a is such that, as shown, when the gaps 2a, 3a are bridged by magnetic portions 8, the gaps 2, 3 are not. The windings on centre limbs 7, 7a are fed with A. C.voltages which are 90 degrees out of phase,and the Hall plates 6, 6a are fed with D.C., or vice versa, the output voltages from the Hall plates being series connected so that the phase of their resultant relative to the energizing voltages is indicative of the displacement of the heads 1, la relative to the scale. In an alternative arrangement (Fig. 2), the two gaps 13, 14 of a single E-shaped core 12 are spaced by an odd multiple of half the scale pitch and the two magnetic loops in the core are separately energised by D.C. in windings 15, 16 producing opposing fluxes in the centre limb. The positions of the gaps 13, 14 relative to the scale determine the magnitude and direction of the resultant flux in the centre limb, and hence the magnitude and polarity of the Hall voltage. When used in a machine tool programming system, windings 20, 21 on the outer limbs are energized with rectified A.C. from a variable transformer arrangement 22 in a predetermined manner, and the flux in the centre limb is reduced to zero by corresponding movement of the reading head and associated machine tool part. The currents in windings 15, 16 and 20, 21 may alternatively be A.C., and the Hall plates 6, 6a replaced by pick-up coils. Each sensing gap may be subdivided into a plurality of gaps (Fig. 3, not shown), the scale comprising a high permeability material foil which is etched to form the voids 9 and scale portions 8.
GB2692562A 1961-07-12 1962-07-12 An arrangement suitable for use in controlling or regulating longitudinal or rotational movements of a machine tool Expired GB1002174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES74811A DE1135991B (en) 1961-07-12 1961-07-12 Device for controlling or regulating longitudinal or rotary movements

Publications (1)

Publication Number Publication Date
GB1002174A true GB1002174A (en) 1965-08-25

Family

ID=7504913

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2692562A Expired GB1002174A (en) 1961-07-12 1962-07-12 An arrangement suitable for use in controlling or regulating longitudinal or rotational movements of a machine tool

Country Status (2)

Country Link
DE (1) DE1135991B (en)
GB (1) GB1002174A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2313199A (en) * 1996-05-13 1997-11-19 Mitutoyo Corp Electronic caliper using a low power inductive position transducer
US6002250A (en) * 1996-05-13 1999-12-14 Mitutoyo Corporation Electronic linear scale using a self-contained, low-power inductive position transducer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1185227B (en) * 1963-07-25 1965-01-14 Siemens Ag Scanning device with Hall generator for periodic magnetic recordings

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2313199A (en) * 1996-05-13 1997-11-19 Mitutoyo Corp Electronic caliper using a 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
US6002250A (en) * 1996-05-13 1999-12-14 Mitutoyo Corporation Electronic linear scale using a self-contained, low-power inductive position transducer

Also Published As

Publication number Publication date
DE1135991B (en) 1962-09-06

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