JPS5576905A - Position and speed detecting system - Google Patents

Position and speed detecting system

Info

Publication number
JPS5576905A
JPS5576905A JP15131178A JP15131178A JPS5576905A JP S5576905 A JPS5576905 A JP S5576905A JP 15131178 A JP15131178 A JP 15131178A JP 15131178 A JP15131178 A JP 15131178A JP S5576905 A JPS5576905 A JP S5576905A
Authority
JP
Japan
Prior art keywords
signals
signal
interpolater
inp
rotary encoder
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.)
Granted
Application number
JP15131178A
Other languages
Japanese (ja)
Other versions
JPS5927845B2 (en
Inventor
Tadashi Akita
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP53151311A priority Critical patent/JPS5927845B2/en
Publication of JPS5576905A publication Critical patent/JPS5576905A/en
Publication of JPS5927845B2 publication Critical patent/JPS5927845B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Position Or Direction (AREA)
  • Control Of Electric Motors In General (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE: To obtain a smooth position or speed signal having no time lag, by interpolating two sine wave signals of the output of a rotary encoder corresponding to the rotational position of a body.
CONSTITUTION: Since wave signals A and B from a rotary encoder RE are zero- voltage-sliced SL and an exclusive OR is taken. The sum of the signals A, B and the difference between them are separately determined. A signal selected by a multiplexer MPX or the like is applied to an interpolater INP. Counting is performed by an updown counter UDC which operates depending on the lead or delay in the signals A, B. An analogue signal is generated by a DA converter DA. Selected interpolated signals are added to one another by the interpolater INP to obtain a smooth signal having no discontinuous point.
COPYRIGHT: (C)1980,JPO&Japio
JP53151311A 1978-12-06 1978-12-06 Position and speed detection method Expired JPS5927845B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53151311A JPS5927845B2 (en) 1978-12-06 1978-12-06 Position and speed detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53151311A JPS5927845B2 (en) 1978-12-06 1978-12-06 Position and speed detection method

Publications (2)

Publication Number Publication Date
JPS5576905A true JPS5576905A (en) 1980-06-10
JPS5927845B2 JPS5927845B2 (en) 1984-07-09

Family

ID=15515871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53151311A Expired JPS5927845B2 (en) 1978-12-06 1978-12-06 Position and speed detection method

Country Status (1)

Country Link
JP (1) JPS5927845B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58137709A (en) * 1982-02-10 1983-08-16 Tokyo Seimitsu Co Ltd Reading method of scale
JPS61131011A (en) * 1984-11-29 1986-06-18 Fujitsu Ltd Interpolation circuit for encoder output
JPH02136082A (en) * 1988-11-15 1990-05-24 Matsushita Electric Ind Co Ltd Position detector
WO2006070826A1 (en) * 2004-12-28 2006-07-06 Asahi Kasei Emd Corporation Magnetic type rotation angle sensor and angle information processing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58137709A (en) * 1982-02-10 1983-08-16 Tokyo Seimitsu Co Ltd Reading method of scale
JPH0136565B2 (en) * 1982-02-10 1989-08-01 Tokyo Seimitsu Co Ltd
JPS61131011A (en) * 1984-11-29 1986-06-18 Fujitsu Ltd Interpolation circuit for encoder output
JPH02136082A (en) * 1988-11-15 1990-05-24 Matsushita Electric Ind Co Ltd Position detector
WO2006070826A1 (en) * 2004-12-28 2006-07-06 Asahi Kasei Emd Corporation Magnetic type rotation angle sensor and angle information processing device

Also Published As

Publication number Publication date
JPS5927845B2 (en) 1984-07-09

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