JPS57120814A - Detector for revolution - Google Patents

Detector for revolution

Info

Publication number
JPS57120814A
JPS57120814A JP688681A JP688681A JPS57120814A JP S57120814 A JPS57120814 A JP S57120814A JP 688681 A JP688681 A JP 688681A JP 688681 A JP688681 A JP 688681A JP S57120814 A JPS57120814 A JP S57120814A
Authority
JP
Japan
Prior art keywords
rotor
photosensor
vanes
light emitting
detector
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
JP688681A
Other languages
Japanese (ja)
Inventor
Shigeharu Kita
Yukihisa Oda
Hiroaki Fukuda
Takeo Hara
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 JP688681A priority Critical patent/JPS57120814A/en
Publication of JPS57120814A publication Critical patent/JPS57120814A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/249—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using pulse code
    • G01D5/2492—Pulse stream

Landscapes

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

Abstract

PURPOSE:To achieve the improvement in mass productivity and the reduction of a cost by specifying the relation between a transmission type photosensor and a rotor thereby obtaining required performance despite the presence of variance in elements. CONSTITUTION:A transmission type photosensor 1 is of a U shape, and a light emitting element 2 and a photodetector 3 are incoporated on the inner side of its respective leading ends. A semiconductor light emitting diode (LED) is used for the element 2 and a phototransistor for the detector 3. Terminals 4, 5, 6 are for an electric power source, output and earth. Vane parts 8 of a rotor 7 are inserted between the light emitting and photodetecting parts of the photosensor 1, and when the rotor 1 revolves, the vanes 8a, 8b- shut off the light of the element 2 entering the detector 3 intermittently. In the sensor 1 and the rotor 7, the width of the photodetecting part of the photosensor is defined as (a), the spacing between the vanes of the rotor as (b), and the width of the vanes of the rotor as (c), and the (a), (b), (c) are so formed as to satisfy the conditions shown by the equations.
JP688681A 1981-01-19 1981-01-19 Detector for revolution Pending JPS57120814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP688681A JPS57120814A (en) 1981-01-19 1981-01-19 Detector for revolution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP688681A JPS57120814A (en) 1981-01-19 1981-01-19 Detector for revolution

Publications (1)

Publication Number Publication Date
JPS57120814A true JPS57120814A (en) 1982-07-28

Family

ID=11650708

Family Applications (1)

Application Number Title Priority Date Filing Date
JP688681A Pending JPS57120814A (en) 1981-01-19 1981-01-19 Detector for revolution

Country Status (1)

Country Link
JP (1) JPS57120814A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0626886A (en) * 1992-03-23 1994-02-04 Miles Inc Position sensing and operation confirming assembly for electric mechanism
EP0774648A1 (en) * 1995-11-17 1997-05-21 Leopold Kostal GmbH & Co. KG Angle sensor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0626886A (en) * 1992-03-23 1994-02-04 Miles Inc Position sensing and operation confirming assembly for electric mechanism
EP0774648A1 (en) * 1995-11-17 1997-05-21 Leopold Kostal GmbH & Co. KG Angle sensor

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