JPS5714716A - Position detector - Google Patents

Position detector

Info

Publication number
JPS5714716A
JPS5714716A JP8943480A JP8943480A JPS5714716A JP S5714716 A JPS5714716 A JP S5714716A JP 8943480 A JP8943480 A JP 8943480A JP 8943480 A JP8943480 A JP 8943480A JP S5714716 A JPS5714716 A JP S5714716A
Authority
JP
Japan
Prior art keywords
signal
detectors
pulse generator
count pulse
detecting
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
JP8943480A
Other languages
Japanese (ja)
Inventor
Masayuki Ebihara
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP8943480A priority Critical patent/JPS5714716A/en
Publication of JPS5714716A publication Critical patent/JPS5714716A/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
    • G01D5/245—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 a variable number of pulses in a train
    • G01D5/2451—Incremental encoders

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE:To obtain an inexpensive position detector by detecting signals from a pair of detectors and their phase difference and switching the method of pulse generation in a count pulse generator. CONSTITUTION:Position detectors DA and DB generate pulses with phase difference each other when an object to be detected is moved. A count pulse generator 4 receives the outputs of both detectors and sent a forward (UP) or backward (DOWN) count pulse to a counter 5. When the detector DB is off-failure, for example, a detecting circuit 1 outputs a signal AY to indicate the rising of a signal A to the rising of a signal B. An abnormal circuit 2 receives signals AY and A and sends a B failure detecting signal to an abnormal circuit 3 to output a signal BZ to a pulse generator 4. After receiving signals BZ and A, the pulse generator 4 sends a count pulse for UP or DOWN to the counter 5. Thus, since a pair of detectors complete a series of operation, the inexpensive position detectors can be obtained.
JP8943480A 1980-07-01 1980-07-01 Position detector Pending JPS5714716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8943480A JPS5714716A (en) 1980-07-01 1980-07-01 Position detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8943480A JPS5714716A (en) 1980-07-01 1980-07-01 Position detector

Publications (1)

Publication Number Publication Date
JPS5714716A true JPS5714716A (en) 1982-01-26

Family

ID=13970557

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8943480A Pending JPS5714716A (en) 1980-07-01 1980-07-01 Position detector

Country Status (1)

Country Link
JP (1) JPS5714716A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61292561A (en) * 1985-06-20 1986-12-23 Mazda Motor Corp Rotation detector
JPS633218A (en) * 1986-06-24 1988-01-08 Inoue Japax Res Inc Encoder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61292561A (en) * 1985-06-20 1986-12-23 Mazda Motor Corp Rotation detector
JPS633218A (en) * 1986-06-24 1988-01-08 Inoue Japax Res Inc Encoder

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