JPS56145409A - Position controller - Google Patents

Position controller

Info

Publication number
JPS56145409A
JPS56145409A JP4804280A JP4804280A JPS56145409A JP S56145409 A JPS56145409 A JP S56145409A JP 4804280 A JP4804280 A JP 4804280A JP 4804280 A JP4804280 A JP 4804280A JP S56145409 A JPS56145409 A JP S56145409A
Authority
JP
Japan
Prior art keywords
output
comparator
position controller
signal
modulator
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.)
Pending
Application number
JP4804280A
Other languages
Japanese (ja)
Inventor
Kenichiro Oota
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.)
Graphtec Corp
Original Assignee
Graphtec Corp
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 Graphtec Corp filed Critical Graphtec Corp
Priority to JP4804280A priority Critical patent/JPS56145409A/en
Publication of JPS56145409A publication Critical patent/JPS56145409A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE:To eliminate effectively unstableness due to speed saturation, by feeding the output of the integrator of a delta-modulating circuit back to the input terminal of a comparator in a position controller for the recording pen of a recorder. CONSTITUTION:Comparator 53 compares input reference signal f(t) with output signal f0(t); when f>f0, its output is in the 1st state and when f<=f0, its output is in the 2nd state. For this purpose, modulator 51 samples the output of comparator 53 at a prescribed frequency, and as outputs of the sampling points, positive and negative-polarity rectangular-wave voltages having unit amplitude are outputted for a constant time according to the 1st and 2nd states. Then, the output of this modulator 51 is integrated 52 and the resulting output signal is fed back to the input terminal of comparator 53 as a substitute for a reference signal or error signal. Consequently, unstableness due to speed saturation is effectively eliminated by the position controller only by adding a simple circuit.
JP4804280A 1980-04-14 1980-04-14 Position controller Pending JPS56145409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4804280A JPS56145409A (en) 1980-04-14 1980-04-14 Position controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4804280A JPS56145409A (en) 1980-04-14 1980-04-14 Position controller

Publications (1)

Publication Number Publication Date
JPS56145409A true JPS56145409A (en) 1981-11-12

Family

ID=12792261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4804280A Pending JPS56145409A (en) 1980-04-14 1980-04-14 Position controller

Country Status (1)

Country Link
JP (1) JPS56145409A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016217889A (en) * 2015-05-21 2016-12-22 株式会社ミツトヨ Position detection device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5088482A (en) * 1973-12-08 1975-07-16
JPS5274782A (en) * 1975-12-18 1977-06-23 Tsubakimoto Chain Co Position determining controller
JPS54106778A (en) * 1978-02-10 1979-08-22 Fujitsu Ltd Positioning control system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5088482A (en) * 1973-12-08 1975-07-16
JPS5274782A (en) * 1975-12-18 1977-06-23 Tsubakimoto Chain Co Position determining controller
JPS54106778A (en) * 1978-02-10 1979-08-22 Fujitsu Ltd Positioning control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016217889A (en) * 2015-05-21 2016-12-22 株式会社ミツトヨ Position detection device

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