JPS5726755A - Speed signal generating circuit - Google Patents

Speed signal generating circuit

Info

Publication number
JPS5726755A
JPS5726755A JP10148080A JP10148080A JPS5726755A JP S5726755 A JPS5726755 A JP S5726755A JP 10148080 A JP10148080 A JP 10148080A JP 10148080 A JP10148080 A JP 10148080A JP S5726755 A JPS5726755 A JP S5726755A
Authority
JP
Japan
Prior art keywords
signal
differentiated
speed
sample
differentiator
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
JP10148080A
Other languages
Japanese (ja)
Inventor
Shigeru Shimoo
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP10148080A priority Critical patent/JPS5726755A/en
Publication of JPS5726755A publication Critical patent/JPS5726755A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE:To obtain a speed signal which corresponds to high speed movement as well and is of low noise by discontinuous position signals indicating the positions of a member and the electric current value signal of a driving motor, in a speed signal generation circuit for a positioning device. CONSTITUTION:A position signal 101 of a triangular wave shape inputs to a differentiator 11, and enters gate signal generators 17, 18 as well. When the signal 101 is within normal level +E2--E2, it is differentiated and according to a selection signal 102, it goes as it is or via an invertor 12 into a sample holder 13, where a speed signal 110 is generated because a sample signal 103 is on. If it is other than the normal level, it is in the discontinuous area of the position signal and since a clamping signal 105 goes on, a sample differentiation signal 107 is applied to the differentiator. The signal 107 holds the differentiation signal while a signal 105 is off, and since a differentiated output 106 is made forcibly equal to the differentiated signal 106 of a continuous area, the fall and rise of the differentiated signal are extremely fast. A minor level difference in the switching output of a switch 13 is eliminated by addition of an electric current value signal 104 to 14.
JP10148080A 1980-07-24 1980-07-24 Speed signal generating circuit Pending JPS5726755A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10148080A JPS5726755A (en) 1980-07-24 1980-07-24 Speed signal generating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10148080A JPS5726755A (en) 1980-07-24 1980-07-24 Speed signal generating circuit

Publications (1)

Publication Number Publication Date
JPS5726755A true JPS5726755A (en) 1982-02-12

Family

ID=14301876

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10148080A Pending JPS5726755A (en) 1980-07-24 1980-07-24 Speed signal generating circuit

Country Status (1)

Country Link
JP (1) JPS5726755A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4912043A (en) * 1985-05-17 1990-03-27 Mitsubishi Petrochemical Co., Ltd. Method of preparing L-malic acid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4912043A (en) * 1985-05-17 1990-03-27 Mitsubishi Petrochemical Co., Ltd. Method of preparing L-malic acid

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