JPS5730909A - Signal processing circuit in phase detection type position reader - Google Patents

Signal processing circuit in phase detection type position reader

Info

Publication number
JPS5730909A
JPS5730909A JP10695880A JP10695880A JPS5730909A JP S5730909 A JPS5730909 A JP S5730909A JP 10695880 A JP10695880 A JP 10695880A JP 10695880 A JP10695880 A JP 10695880A JP S5730909 A JPS5730909 A JP S5730909A
Authority
JP
Japan
Prior art keywords
frequency
signal
magnetic
interpolation
constitution
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
JP10695880A
Other languages
Japanese (ja)
Other versions
JPH0136043B2 (en
Inventor
Katsutoshi Mibu
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP10695880A priority Critical patent/JPS5730909A/en
Publication of JPS5730909A publication Critical patent/JPS5730909A/en
Publication of JPH0136043B2 publication Critical patent/JPH0136043B2/ja
Granted 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
    • G01D5/243—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 the phase or frequency of ac

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

PURPOSE:To enhance high resolution and high speed response performance by converting a carrier wave frequency of a phase modulation signal obtained from the output detected in a scale graduation into a lower frequency, and processing interpolation based on said low carrier wave frequency. CONSTITUTION:An output signal is obtained by detecting the magnetic grids recorded in a magnetic scale 1 by magnetic heads 2 and 3. A frequency converter 20 is provided between a band pass filter 12 for taking out the phase modulating signal from an adder amplifier 11 based on said detected signal and a buffer amplifier 13 provided before an amplitude limiter 14. The circuit 20 is composed of a balanced modulator 21, a low pass filter 22, and a second frequency step down circuit 23. Said step down circuit steps down the frequency n.f0 to 4/5n with respect to the reference signal from a reference oscillator 4 and supplies the modulating signal comprising the frequency of 4/5 f0 to the balanced modulator 21. In this constitution, the interpolation process can be performed under the state the interpolation clock frequency is decreased to 4/5f0.
JP10695880A 1980-08-04 1980-08-04 Signal processing circuit in phase detection type position reader Granted JPS5730909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10695880A JPS5730909A (en) 1980-08-04 1980-08-04 Signal processing circuit in phase detection type position reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10695880A JPS5730909A (en) 1980-08-04 1980-08-04 Signal processing circuit in phase detection type position reader

Publications (2)

Publication Number Publication Date
JPS5730909A true JPS5730909A (en) 1982-02-19
JPH0136043B2 JPH0136043B2 (en) 1989-07-28

Family

ID=14446841

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10695880A Granted JPS5730909A (en) 1980-08-04 1980-08-04 Signal processing circuit in phase detection type position reader

Country Status (1)

Country Link
JP (1) JPS5730909A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57104699A (en) * 1980-12-23 1982-06-29 Kashita Seisakusho:Kk Hanger for plating
JPS62132104A (en) * 1985-12-04 1987-06-15 Futaba Corp Length measuring apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430060A (en) * 1977-08-11 1979-03-06 Sony Corp Dislocation detecting circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430060A (en) * 1977-08-11 1979-03-06 Sony Corp Dislocation detecting circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57104699A (en) * 1980-12-23 1982-06-29 Kashita Seisakusho:Kk Hanger for plating
JPS5822559B2 (en) * 1980-12-23 1983-05-10 株式会社 カシタ製作所 Hanger for plating
JPS62132104A (en) * 1985-12-04 1987-06-15 Futaba Corp Length measuring apparatus
JPH0518364B2 (en) * 1985-12-04 1993-03-11 Futaba Denshi Kogyo Kk

Also Published As

Publication number Publication date
JPH0136043B2 (en) 1989-07-28

Similar Documents

Publication Publication Date Title
DE3361706D1 (en) Method and apparatus for measuring the amplitude of a noise-affected periodic signal without phase reference
KR850008258A (en) FSK data receiver
JPS5730909A (en) Signal processing circuit in phase detection type position reader
FR2237358A1 (en) Angularly modulated carrier oscillation demodulator - for video disc reading involves using limiter differential amplifier
JPS55117719A (en) Magnetic recorder
JPS5635539A (en) Noise eliminating method
JPS5644109A (en) Magnetic recording and reproducing system
JPS55135308A (en) Recording method for information to recording carrier
JPS56117328A (en) Information reproducing device
JPS5755512A (en) Noise eliminating method of video disk
JPS5350917A (en) Chrominance component recording system
SU647839A1 (en) Demodulator
ATE116491T1 (en) CIRCUIT ARRANGEMENT FOR DETECTING CHARACTERISTIC VIBRATIONS.
JPS57104392A (en) Video signal recording and reproducing device
SU457090A1 (en) Magnetic recording-reproducing method
JPS5593509A (en) Signal detection circuit
JPS5635561A (en) Carrier regenerating device
JPS5469311A (en) Supervisory unit for error ratio of n-phase psk digital modulation system
JPS5389713A (en) Servo signal demodulating sysyem of magnetic disk device
JPS55149554A (en) Carrier reproducing circuit
JPS5492716A (en) Video signal recording circuit
JPS6460046A (en) Fsk demodulating circuit
JPS5787653A (en) Modulation and demodulation system for binary code transmission
JPS5480030A (en) Process circuit for carrier chrominance signal
JPS5757087A (en) Copying device