JPS5744858A - Detector for rotational speed of wheel - Google Patents

Detector for rotational speed of wheel

Info

Publication number
JPS5744858A
JPS5744858A JP12010780A JP12010780A JPS5744858A JP S5744858 A JPS5744858 A JP S5744858A JP 12010780 A JP12010780 A JP 12010780A JP 12010780 A JP12010780 A JP 12010780A JP S5744858 A JPS5744858 A JP S5744858A
Authority
JP
Japan
Prior art keywords
light
generated
rotor
optical fiber
slits
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
JP12010780A
Other languages
Japanese (ja)
Inventor
Tetsuo Arikawa
Hideyuki Yamada
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.)
Nabco Ltd
Original Assignee
Nabco 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 Nabco Ltd filed Critical Nabco Ltd
Priority to JP12010780A priority Critical patent/JPS5744858A/en
Publication of JPS5744858A publication Critical patent/JPS5744858A/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
    • G01P3/486—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 photo-electric detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)

Abstract

PURPOSE:To prevent a noise signal from being generated, by providing a number of light transmittable slits in a rotor and transferring light generated by means of a light emitting element via optical fibers to a light-receiving element to permit a pulse signal to be generated. CONSTITUTION:A number of rectangular windows 13 are bored at regular intervals in the circumferential direction in an annular cylinder part 12 of a rotor, and the windows 13 form slits. In a detecting part 14, end parts of the first optical fiber 16 and the second optical fiber 17 are embedded. Further, a light-emitting diode 20 as a light-emitting element is connected with a wiring 23 and a photodiode 24 as a light-receiving element is connected to a wiring 22 with its plus terminal. In this way, since light passing through said slits is transmitted to the light-receiving element via the second optical fiber to permit a pulse signal to be generated, there is no possibility to generate a noise signal by a mechanical impact of the rotor at all.
JP12010780A 1980-08-29 1980-08-29 Detector for rotational speed of wheel Pending JPS5744858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12010780A JPS5744858A (en) 1980-08-29 1980-08-29 Detector for rotational speed of wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12010780A JPS5744858A (en) 1980-08-29 1980-08-29 Detector for rotational speed of wheel

Publications (1)

Publication Number Publication Date
JPS5744858A true JPS5744858A (en) 1982-03-13

Family

ID=14778096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12010780A Pending JPS5744858A (en) 1980-08-29 1980-08-29 Detector for rotational speed of wheel

Country Status (1)

Country Link
JP (1) JPS5744858A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972063A (en) * 1982-10-18 1984-04-23 Ito Kogyo Kk Speed detector for vehicle or the like
JPH0635609U (en) * 1992-10-14 1994-05-13 株式会社中村自工 Hydraulic fixed joint

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972063A (en) * 1982-10-18 1984-04-23 Ito Kogyo Kk Speed detector for vehicle or the like
JPH0635609U (en) * 1992-10-14 1994-05-13 株式会社中村自工 Hydraulic fixed joint

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