GB874293A - Improvements relating to position servo systems - Google Patents

Improvements relating to position servo systems

Info

Publication number
GB874293A
GB874293A GB3798158A GB3798158A GB874293A GB 874293 A GB874293 A GB 874293A GB 3798158 A GB3798158 A GB 3798158A GB 3798158 A GB3798158 A GB 3798158A GB 874293 A GB874293 A GB 874293A
Authority
GB
United Kingdom
Prior art keywords
servo
voltages
synchro
sine
nov
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
GB3798158A
Inventor
Dennis James Mynall
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB3798158A priority Critical patent/GB874293A/en
Priority to FR811275A priority patent/FR1248139A/en
Publication of GB874293A publication Critical patent/GB874293A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G05B19/33—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 analogue measuring device
    • G05B19/35—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 analogue measuring device for point-to-point control
    • G05B19/351—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 analogue measuring device for point-to-point control the positional error is used to control continuously the servomotor according to its magnitude

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

874,293. Electric selective signalling systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 18, 1959 [Nov. 25, 1958], No. 37981/58. Class 40 (1). In a digitally controlled servo-system data from a keyboard or a record card is entered into a shift register 5 having certain of its highest denominational stages connected to a recoding circuit 11 as described in Specification 821,187 which produces voltages corresponding in amplitudes to the sine and cosine of the input value. These voltages are then switched by a switch 12 to a first synchro 13 to control the coarse positioning of an output shaft. When the error voltage in the servo-loop (that is the voltage driving the motor) reaches a predetermined low level, the contents of the shift register are shifted and the sine and cosine voltages are switched to a second synchro to control the medium positioning of the output shaft, and finally when the error voltage again reaches the predetermined low level a further shift is effected and the fine positioning of the shaft is made. The servo-loops can be as described in Specification 814,617 giving an angular or a linear output movement. All the previously mentioned Specifications are referred to. Specification 764,588 also is referred to
GB3798158A 1958-11-25 1958-11-25 Improvements relating to position servo systems Expired GB874293A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3798158A GB874293A (en) 1958-11-25 1958-11-25 Improvements relating to position servo systems
FR811275A FR1248139A (en) 1958-11-25 1959-11-25 Electric position control system for machine tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3798158A GB874293A (en) 1958-11-25 1958-11-25 Improvements relating to position servo systems

Publications (1)

Publication Number Publication Date
GB874293A true GB874293A (en) 1961-08-02

Family

ID=10400375

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3798158A Expired GB874293A (en) 1958-11-25 1958-11-25 Improvements relating to position servo systems

Country Status (2)

Country Link
FR (1) FR1248139A (en)
GB (1) GB874293A (en)

Also Published As

Publication number Publication date
FR1248139A (en) 1960-12-09

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