GB912344A - Improvements in or relating to electromechanical signalling apparatus - Google Patents

Improvements in or relating to electromechanical signalling apparatus

Info

Publication number
GB912344A
GB912344A GB3560758A GB3560758A GB912344A GB 912344 A GB912344 A GB 912344A GB 3560758 A GB3560758 A GB 3560758A GB 3560758 A GB3560758 A GB 3560758A GB 912344 A GB912344 A GB 912344A
Authority
GB
United Kingdom
Prior art keywords
voltage
rotor
nov
measure
unbalance
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
GB3560758A
Inventor
Kenneth Arthur Robinson
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.)
Lancashire Dynamo Electronic Products Ltd
Original Assignee
Lancashire Dynamo Electronic Products Ltd
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 Lancashire Dynamo Electronic Products Ltd filed Critical Lancashire Dynamo Electronic Products Ltd
Priority to GB3560758A priority Critical patent/GB912344A/en
Publication of GB912344A publication Critical patent/GB912344A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/38—Electric signal transmission systems using dynamo-electric devices
    • G08C19/40—Electric signal transmission systems using dynamo-electric devices of which only the rotor or the stator carries a winding to which a signal is applied, e.g. using step motor
    • G08C19/44—Electric signal transmission systems using dynamo-electric devices of which only the rotor or the stator carries a winding to which a signal is applied, e.g. using step motor having more than three stator poles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
    • B23Q35/12—Means for transforming movement of the feeler or the like into feed movement of tool or work involving electrical means
    • B23Q35/121—Means for transforming movement of the feeler or the like into feed movement of tool or work involving electrical means using mechanical sensing
    • B23Q35/123—Means for transforming movement of the feeler or the like into feed movement of tool or work involving electrical means using mechanical sensing the feeler varying the impedance in a circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

912,344. Measuring displacement electrically. LANCASHIRE DYNAMO ELECTRONIC PRODUCTS Ltd. Nov. 3, 1959 [Nov. 5, 1958], No. 35607/58. Class 40 (1). [Also in Group XXXV] To signal the position of a shaft 6 an eccentric ferromagnetic rotor 3 attached thereto is used to unbalance the current in a four-phase stator winding 2 so that an A.C. voltage exists between star point 5 of the winding and neutral N of the supply, and the phase angle between this voltage and a given reference is a measure of the angular position of the shaft. In addition, the rotor as a whole may be displaceable radially from the axis of the stator, Fig. 4 (not shown), when the magnitude of the unbalance voltage is a measure of such displacement. A system is described in which the output of the device is compared with a control signal and any difference in phase produces a voltage which operates a servomotor to position a tool to which the device is coupled. It is stated that the device may also be used for thyratron or ignitron control and, where the rotor is also radially displaceable, it may comprise a tracing head in a copying machine. Specification 770,645 is referred to.
GB3560758A 1958-11-05 1958-11-05 Improvements in or relating to electromechanical signalling apparatus Expired GB912344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3560758A GB912344A (en) 1958-11-05 1958-11-05 Improvements in or relating to electromechanical signalling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3560758A GB912344A (en) 1958-11-05 1958-11-05 Improvements in or relating to electromechanical signalling apparatus

Publications (1)

Publication Number Publication Date
GB912344A true GB912344A (en) 1962-12-05

Family

ID=10379599

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3560758A Expired GB912344A (en) 1958-11-05 1958-11-05 Improvements in or relating to electromechanical signalling apparatus

Country Status (1)

Country Link
GB (1) GB912344A (en)

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