JPS6465415A - Multiple rotation type absolute value encoder - Google Patents

Multiple rotation type absolute value encoder

Info

Publication number
JPS6465415A
JPS6465415A JP22272887A JP22272887A JPS6465415A JP S6465415 A JPS6465415 A JP S6465415A JP 22272887 A JP22272887 A JP 22272887A JP 22272887 A JP22272887 A JP 22272887A JP S6465415 A JPS6465415 A JP S6465415A
Authority
JP
Japan
Prior art keywords
circuit
absolute value
bits
rotation
detection signal
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
JP22272887A
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 JP22272887A priority Critical patent/JPS6465415A/en
Publication of JPS6465415A publication Critical patent/JPS6465415A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To accurately detect multiple rotation with simple constitution by using a detection signal from <=(N-1) tracks on the side of the most significant digit bit of the detection signal of the absolute value encoder. CONSTITUTION:An LED 81 projects light on slits of high-order two bits on the most significant digit bit side of a Gray code and an LED 82 projects light on slits of low-order two bits. Further, waveform shaping circuits 61-64 shape signals detected with the Gray code into rectangular waves, which are outputted as absolute value signals of <=1 rotation through a balanced type line driver circuit 71. Signals of the high-order two bits of the Gray code, on the other hand, are inputted to a rotating direction discriminating circuit 9 from the circuits 61 and 62 and inputted to a counter circuit 5. The circuit 5 obtain a 4-bit binary code output with a rotating direction detection signal B detected by a circuit 9 and a signal A obtained by detecting the quantity of rotation for generating one pulse by one turn, and multiple rotation up to 16 rotations is detected by outputted from a balanced type line driver circuit 72.
JP22272887A 1987-09-05 1987-09-05 Multiple rotation type absolute value encoder Pending JPS6465415A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22272887A JPS6465415A (en) 1987-09-05 1987-09-05 Multiple rotation type absolute value encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22272887A JPS6465415A (en) 1987-09-05 1987-09-05 Multiple rotation type absolute value encoder

Publications (1)

Publication Number Publication Date
JPS6465415A true JPS6465415A (en) 1989-03-10

Family

ID=16786967

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22272887A Pending JPS6465415A (en) 1987-09-05 1987-09-05 Multiple rotation type absolute value encoder

Country Status (1)

Country Link
JP (1) JPS6465415A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03176614A (en) * 1989-12-05 1991-07-31 Matsushita Electric Ind Co Ltd Absolute type encoder
JPH0490916U (en) * 1990-12-22 1992-08-07
JPH04344420A (en) * 1991-05-21 1992-12-01 Sankyo Seiki Mfg Co Ltd Rotation detector
JPH0523035U (en) * 1991-09-10 1993-03-26 株式会社ニコン Multi-turn absolute encoder
JPH07174585A (en) * 1993-12-06 1995-07-14 Futaba Corp Optical absolute scale
JP2016217873A (en) * 2015-05-20 2016-12-22 株式会社デンソー Rotation angle detector
JP2021012212A (en) * 2016-01-18 2021-02-04 株式会社ニコン Encoder device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60190810A (en) * 1984-03-10 1985-09-28 Fanuc Ltd Pulse encoder
JPS63242028A (en) * 1987-03-30 1988-10-07 Ishikawajima Harima Heavy Ind Co Ltd Multi-rotation absolute address type position detector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60190810A (en) * 1984-03-10 1985-09-28 Fanuc Ltd Pulse encoder
JPS63242028A (en) * 1987-03-30 1988-10-07 Ishikawajima Harima Heavy Ind Co Ltd Multi-rotation absolute address type position detector

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03176614A (en) * 1989-12-05 1991-07-31 Matsushita Electric Ind Co Ltd Absolute type encoder
JPH0490916U (en) * 1990-12-22 1992-08-07
JPH04344420A (en) * 1991-05-21 1992-12-01 Sankyo Seiki Mfg Co Ltd Rotation detector
JPH0523035U (en) * 1991-09-10 1993-03-26 株式会社ニコン Multi-turn absolute encoder
JPH07174585A (en) * 1993-12-06 1995-07-14 Futaba Corp Optical absolute scale
JP2016217873A (en) * 2015-05-20 2016-12-22 株式会社デンソー Rotation angle detector
JP2021012212A (en) * 2016-01-18 2021-02-04 株式会社ニコン Encoder device
US11385081B2 (en) 2016-01-18 2022-07-12 Nikon Corporation Encoder apparatus, drive apparatus, stage apparatus, and robot apparatus with light emission adjuster

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