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JPS56122961A - Rotation speed detecting device - Google Patents

Rotation speed detecting device

Info

Publication number
JPS56122961A
JPS56122961A JP2717780A JP2717780A JPS56122961A JP S56122961 A JPS56122961 A JP S56122961A JP 2717780 A JP2717780 A JP 2717780A JP 2717780 A JP2717780 A JP 2717780A JP S56122961 A JPS56122961 A JP S56122961A
Authority
JP
Japan
Prior art keywords
speed
signal
disc
motor
rotation
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
JP2717780A
Other languages
Japanese (ja)
Inventor
Juichi Irie
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP2717780A priority Critical patent/JPS56122961A/en
Publication of JPS56122961A publication Critical patent/JPS56122961A/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
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE:To detect the rotation speed and the rotation angle with a high precision without the influence of the fitting precision, by writing the signal of a fixed frequency onto the magnetic disc, which is rotating in a constant speed, and by reading this signal, in the rotation speed detector. CONSTITUTION:Magnetic disc 3 connected to rotation axis 2 of motor 1 to be measured is rotated in a constant speed accurately by flywheel 5 driven by auxiliary motor 6, and the signal of a fixed frequency is written from oscillator 8 through amplifier 10 and switch 11 by magnetic head 4. Next, wheel 5 is disconnected, and the signal on disc 3 driven by motor 1 is read to obtain the DC voltage corresponding to the speed through amplifier 12 and F-V converter 9, thereby analyzing speed pulsation of motor 1 and correcting the speed detector. Reference position signal S2 is obtained by hole 14 and light receiver and transmitters 10 and 13 to detect the rotation angle. Since the magnetic recording density on disc 3 is made high easily and the fitting precision of the disc has no influence, the speed detection precision is improved.
JP2717780A 1980-03-03 1980-03-03 Rotation speed detecting device Pending JPS56122961A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2717780A JPS56122961A (en) 1980-03-03 1980-03-03 Rotation speed detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2717780A JPS56122961A (en) 1980-03-03 1980-03-03 Rotation speed detecting device

Publications (1)

Publication Number Publication Date
JPS56122961A true JPS56122961A (en) 1981-09-26

Family

ID=12213783

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2717780A Pending JPS56122961A (en) 1980-03-03 1980-03-03 Rotation speed detecting device

Country Status (1)

Country Link
JP (1) JPS56122961A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106841658A (en) * 2017-02-10 2017-06-13 太仓鼎诚电子科技有限公司 Car speed sensor detecting system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106841658A (en) * 2017-02-10 2017-06-13 太仓鼎诚电子科技有限公司 Car speed sensor detecting system

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