JPS5786056A - Revolving speed detector - Google Patents

Revolving speed detector

Info

Publication number
JPS5786056A
JPS5786056A JP16244780A JP16244780A JPS5786056A JP S5786056 A JPS5786056 A JP S5786056A JP 16244780 A JP16244780 A JP 16244780A JP 16244780 A JP16244780 A JP 16244780A JP S5786056 A JPS5786056 A JP S5786056A
Authority
JP
Japan
Prior art keywords
comb
electrodes
stator
rotor
parts
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
JP16244780A
Other languages
Japanese (ja)
Other versions
JPH0149884B2 (en
Inventor
Takatoshi Yukimasa
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP16244780A priority Critical patent/JPS5786056A/en
Publication of JPS5786056A publication Critical patent/JPS5786056A/en
Publication of JPH0149884B2 publication Critical patent/JPH0149884B2/ja
Granted 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
    • G01P3/4802—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general
    • G01P3/4807—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general by using circuits for the detection of the pulses delivered by the ignition system of an internal combustion engine

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Optical Transform (AREA)

Abstract

PURPOSE:To increase detection points and improve the accuracy of detection by irradiating the light emitted from a rotor to a photoelectric member on a stator, and obtaining the change in the electromotive force thereof as angular speed information from a pair of comb-shaped electrodes. CONSTITUTION:A rotor 1 made of acrylics having reflection surface 3, 4a, 4b is fixed to a revolving shaft 2. The light emitted from a lamp 5 passes through the inside of the rotor and is irradiated from light output parts 6a, 6b to the annular photoelectric member 8 on a stator 7. the stator 7 is an insulator and the member 8 is, for example, a solar battery or the like. A pair of comb-shaped electrodes 9a, 8b are formed concentrically to the member 8 on an insulation base plate 7. Since the comb-shaped parts 11, 12, 14 of the electrodes 9a, 9b are connected to the member 8 alternately, an output is taken out from the electrodes only when the light is irradiated simultaneously to one of the comb teeth of the electrode 9a and the adjacent tooth of the electrode 9b. In this way, the revolution can be converted to pulses. It is possible to increase detection points by increasing the comb teeth, or increasing the detecting parts in many plies concentrically.
JP16244780A 1980-11-17 1980-11-17 Revolving speed detector Granted JPS5786056A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16244780A JPS5786056A (en) 1980-11-17 1980-11-17 Revolving speed detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16244780A JPS5786056A (en) 1980-11-17 1980-11-17 Revolving speed detector

Publications (2)

Publication Number Publication Date
JPS5786056A true JPS5786056A (en) 1982-05-28
JPH0149884B2 JPH0149884B2 (en) 1989-10-26

Family

ID=15754778

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16244780A Granted JPS5786056A (en) 1980-11-17 1980-11-17 Revolving speed detector

Country Status (1)

Country Link
JP (1) JPS5786056A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5946813A (en) * 1982-09-10 1984-03-16 Yamatake Honeywell Co Ltd Rotary encoder
JPS60253873A (en) * 1984-05-30 1985-12-14 Kyoto Denso:Kk Revolution measuring apparatus for rotor
JPS61213725A (en) * 1985-03-20 1986-09-22 Nippon Denso Co Ltd Apparatus for detecting position
JPS6254121A (en) * 1985-09-03 1987-03-09 Toshiba Corp Displacement detector
JP2001183122A (en) * 1999-10-12 2001-07-06 Canon Inc Optical rotational angle detecting device, rotation detecting device, and optical rotational angle detecting method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5946813A (en) * 1982-09-10 1984-03-16 Yamatake Honeywell Co Ltd Rotary encoder
JPS60253873A (en) * 1984-05-30 1985-12-14 Kyoto Denso:Kk Revolution measuring apparatus for rotor
JPS61213725A (en) * 1985-03-20 1986-09-22 Nippon Denso Co Ltd Apparatus for detecting position
JPS6254121A (en) * 1985-09-03 1987-03-09 Toshiba Corp Displacement detector
JP2001183122A (en) * 1999-10-12 2001-07-06 Canon Inc Optical rotational angle detecting device, rotation detecting device, and optical rotational angle detecting method

Also Published As

Publication number Publication date
JPH0149884B2 (en) 1989-10-26

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