JPS60155919A - Apparatus for detecting rotary position - Google Patents

Apparatus for detecting rotary position

Info

Publication number
JPS60155919A
JPS60155919A JP1138484A JP1138484A JPS60155919A JP S60155919 A JPS60155919 A JP S60155919A JP 1138484 A JP1138484 A JP 1138484A JP 1138484 A JP1138484 A JP 1138484A JP S60155919 A JPS60155919 A JP S60155919A
Authority
JP
Japan
Prior art keywords
lambda2
light
light receiving
signals
lambda1
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
JP1138484A
Other languages
Japanese (ja)
Inventor
Nobuaki Ooharu
Kiyoshi Sashita
Hideo Tsubata
Original Assignee
Toyo Denso 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 Toyo Denso Co Ltd filed Critical Toyo Denso Co Ltd
Priority to JP1138484A priority Critical patent/JPS60155919A/en
Publication of JPS60155919A publication Critical patent/JPS60155919A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D5/00Mechanical 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
    • G01D5/26Mechanical 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 characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light
    • G01D5/32Mechanical 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 characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34Mechanical 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 characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347Mechanical 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 characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G01D5/34707Scales; Discs, e.g. fixation, fabrication, compensation
    • G01D5/34715Scale reading or illumination devices
    • G01D5/34723Scale reading or illumination devices involving light-guides

Abstract

PURPOSE:To make it possible to arrange a light emitting part and a light receiving part to arbitrary positions, by avoiding the arrangement of the light emitting part or the light receiving part in an atmosphere severe in conditions such as a high temp., vibration or electrical noise while obtaining frequency dividing signals and rotary signals of a plurality of CHs as optical signals. CONSTITUTION:An optical signal containing wavelengths lambda1, lambda2 is incident on a wave splitter 8 from a light emitting part 10 present at a position spaced part from an internal combustion engine main body through a first optical fiber 11 and light with the wavelength lambda1 is reflected toward a rotor 3 in one dichroic mirror 15 while light with the wavelength lambda2 is reflected toward the rotor 3 in the other dichroic mirror 16. When through-holes 5, 7a are positioned between the wave splitter 8 and a mixer 9 in this state, the optical signals with the wavelength lambda1, lambda2 transmit the through-holes 5, 7a to be incident to the mixer 9. Said optical signals are mixed in the mixer 9 and transmitted to a light receiving part 12 through a second optical fiber 13. By this mechanism, the light receiving part 12 decodes that the optical signal contains both wavelengths lambda1, lambda2 and reads the ignition time of a specific cylinder or a fuel jet time thereof.
JP1138484A 1984-01-25 1984-01-25 Apparatus for detecting rotary position Pending JPS60155919A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1138484A JPS60155919A (en) 1984-01-25 1984-01-25 Apparatus for detecting rotary position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1138484A JPS60155919A (en) 1984-01-25 1984-01-25 Apparatus for detecting rotary position

Publications (1)

Publication Number Publication Date
JPS60155919A true JPS60155919A (en) 1985-08-16

Family

ID=11776508

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1138484A Pending JPS60155919A (en) 1984-01-25 1984-01-25 Apparatus for detecting rotary position

Country Status (1)

Country Link
JP (1) JPS60155919A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62151761A (en) * 1985-12-26 1987-07-06 Matsushita Electric Ind Co Ltd Speed detector
EP0285053A2 (en) * 1987-03-30 1988-10-05 Kollmorgen Corporation Fiber optic sensing system and method across working air gap of an electric motor
JP2008261745A (en) * 2007-04-12 2008-10-30 Ojima Shisaku Kenkyusho:Kk Detection part for encoder, and encoder
JP2008544838A (en) * 2005-06-30 2008-12-11 ノヴェコ インコーポレイテッド Bactericidal air filter
EP2730894A1 (en) * 2012-11-13 2014-05-14 Itron GmbH Detector, light guide and utility meter
KR101452364B1 (en) * 2014-04-30 2014-10-22 주식회사 은하 Optical encoder of electric powered valve actuator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55132921A (en) * 1979-04-05 1980-10-16 Fujitsu Ltd Sensor using optical fiber
JPS56106111A (en) * 1980-01-29 1981-08-24 Toshiba Corp Pulse transmitter
JPS56149697A (en) * 1980-04-21 1981-11-19 Furukawa Electric Co Ltd Meausred amount detecting system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55132921A (en) * 1979-04-05 1980-10-16 Fujitsu Ltd Sensor using optical fiber
JPS56106111A (en) * 1980-01-29 1981-08-24 Toshiba Corp Pulse transmitter
JPS56149697A (en) * 1980-04-21 1981-11-19 Furukawa Electric Co Ltd Meausred amount detecting system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62151761A (en) * 1985-12-26 1987-07-06 Matsushita Electric Ind Co Ltd Speed detector
EP0285053A2 (en) * 1987-03-30 1988-10-05 Kollmorgen Corporation Fiber optic sensing system and method across working air gap of an electric motor
EP0285053A3 (en) * 1987-03-30 1990-03-14 Kollmorgen Corporation Fiber optic sensing system and method across working air gap of an electric motor
JP2008544838A (en) * 2005-06-30 2008-12-11 ノヴェコ インコーポレイテッド Bactericidal air filter
JP2008261745A (en) * 2007-04-12 2008-10-30 Ojima Shisaku Kenkyusho:Kk Detection part for encoder, and encoder
EP2730894A1 (en) * 2012-11-13 2014-05-14 Itron GmbH Detector, light guide and utility meter
WO2014076100A2 (en) * 2012-11-13 2014-05-22 Itron Gmbh Detector, light guide and utility meter
WO2014076100A3 (en) * 2012-11-13 2014-07-17 Itron Gmbh Detector, light guide and utility meter
US9519110B2 (en) 2012-11-13 2016-12-13 Itron Gmbh Detector, light guide and utility meter
KR101452364B1 (en) * 2014-04-30 2014-10-22 주식회사 은하 Optical encoder of electric powered valve actuator

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