JPS55112570A - Position detector - Google Patents

Position detector

Info

Publication number
JPS55112570A
JPS55112570A JP2036079A JP2036079A JPS55112570A JP S55112570 A JPS55112570 A JP S55112570A JP 2036079 A JP2036079 A JP 2036079A JP 2036079 A JP2036079 A JP 2036079A JP S55112570 A JPS55112570 A JP S55112570A
Authority
JP
Japan
Prior art keywords
outputs
luminous
luminous element
elements
taken out
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
JP2036079A
Other languages
Japanese (ja)
Inventor
Takashi Nagase
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.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Manufacturing 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 Yaskawa Electric Manufacturing Co Ltd filed Critical Yaskawa Electric Manufacturing Co Ltd
Priority to JP2036079A priority Critical patent/JPS55112570A/en
Publication of JPS55112570A publication Critical patent/JPS55112570A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to cancel fluctuation of a temperature, etc., by not only preventing a signal from being broken even for low-speed operations but also controlling the light quantity of a luminous element by synthesizing electrically a speed signal from position detection pulses.
CONSTITUTION: Luminous elements 3W5 and light receiving elements 6W9 are provided with slit disc 1 interposed, and outputs A and B of an approximate sine waveform, which are different in phase from detection outputs of light receiving elements 6W9 by π, and outputs of an approximate sine waveform, which are different in phase from outputs A and B by π/2, are taken out. Outputs of these differential amplifiers 13W16 are differentiated by 18, and parts near the maximum value of respective sine wave outputs are taken out successively by π/2 by analogue switch 19 which is controlled by analogue switch control circuit 20, and the parts above are added to obtain a speed signal. Luminous element 10 detects the light quantity of luminous element 5 to control currents of luminous elements 3W5 by 12.
COPYRIGHT: (C)1980,JPO&Japio
JP2036079A 1979-02-21 1979-02-21 Position detector Pending JPS55112570A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2036079A JPS55112570A (en) 1979-02-21 1979-02-21 Position detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2036079A JPS55112570A (en) 1979-02-21 1979-02-21 Position detector

Publications (1)

Publication Number Publication Date
JPS55112570A true JPS55112570A (en) 1980-08-30

Family

ID=12024921

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2036079A Pending JPS55112570A (en) 1979-02-21 1979-02-21 Position detector

Country Status (1)

Country Link
JP (1) JPS55112570A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5780562A (en) * 1980-11-10 1982-05-20 Fuji Electric Co Ltd Phase detecting binarizing device
JPS59122909A (en) * 1982-12-29 1984-07-16 Mitsubishi Electric Corp Rotary phase detector
JPS59210322A (en) * 1984-03-24 1984-11-29 Canon Inc Photoelectric position detection system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5780562A (en) * 1980-11-10 1982-05-20 Fuji Electric Co Ltd Phase detecting binarizing device
JPS59122909A (en) * 1982-12-29 1984-07-16 Mitsubishi Electric Corp Rotary phase detector
JPS59210322A (en) * 1984-03-24 1984-11-29 Canon Inc Photoelectric position detection system
JPH0445763B2 (en) * 1984-03-24 1992-07-27 Canon Kk

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