JPS5278459A - Detector for rotational direction of body of revolution - Google Patents

Detector for rotational direction of body of revolution

Info

Publication number
JPS5278459A
JPS5278459A JP50155299A JP15529975A JPS5278459A JP S5278459 A JPS5278459 A JP S5278459A JP 50155299 A JP50155299 A JP 50155299A JP 15529975 A JP15529975 A JP 15529975A JP S5278459 A JPS5278459 A JP S5278459A
Authority
JP
Japan
Prior art keywords
revolution
detector
rotational direction
pair
phase difference
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
JP50155299A
Other languages
Japanese (ja)
Other versions
JPS5857830B2 (en
Inventor
Susumu Hoshimi
Toshio Sato
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP50155299A priority Critical patent/JPS5857830B2/en
Publication of JPS5278459A publication Critical patent/JPS5278459A/en
Publication of JPS5857830B2 publication Critical patent/JPS5857830B2/en
Expired 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
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/02—Indicating direction only, e.g. by weather vane
    • G01P13/04—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Rotational Drive Of Disk (AREA)

Abstract

PURPOSE:To provide a detector for rotational directionof a body of revolution, in which use is made of a phase difference and polarity discriminating circuit which is supplied with a pair of frequency signals from a pair of frequency signal generators to discriminate the phase difference and polarity of the signals.
JP50155299A 1975-12-25 1975-12-25 Turntable drive circuit Expired JPS5857830B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50155299A JPS5857830B2 (en) 1975-12-25 1975-12-25 Turntable drive circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50155299A JPS5857830B2 (en) 1975-12-25 1975-12-25 Turntable drive circuit

Publications (2)

Publication Number Publication Date
JPS5278459A true JPS5278459A (en) 1977-07-01
JPS5857830B2 JPS5857830B2 (en) 1983-12-22

Family

ID=15602849

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50155299A Expired JPS5857830B2 (en) 1975-12-25 1975-12-25 Turntable drive circuit

Country Status (1)

Country Link
JP (1) JPS5857830B2 (en)

Also Published As

Publication number Publication date
JPS5857830B2 (en) 1983-12-22

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