JPS5719679A - Measuring circuit for encoder characteristics - Google Patents

Measuring circuit for encoder characteristics

Info

Publication number
JPS5719679A
JPS5719679A JP9469780A JP9469780A JPS5719679A JP S5719679 A JPS5719679 A JP S5719679A JP 9469780 A JP9469780 A JP 9469780A JP 9469780 A JP9469780 A JP 9469780A JP S5719679 A JPS5719679 A JP S5719679A
Authority
JP
Japan
Prior art keywords
encoder
input
waveform
measured
signal
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
JP9469780A
Other languages
Japanese (ja)
Inventor
Masao Yamazawa
Hirohisa Karibe
Toshihiko Matsumura
Hirokazu Fukui
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9469780A priority Critical patent/JPS5719679A/en
Publication of JPS5719679A publication Critical patent/JPS5719679A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/10—Calibration or testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To permit the measurement of the input/output characteristics of even an encoder to be measured, to which a DC input cannot be applied, by a method wherein the input characteristics of the encoder are measured by applying a known discontinuous input waveform thereto such as a step waveform or the like. CONSTITUTION:From a waveform generator 13, a discontinuous analog signal x(t) whose amplitude is controlled by a result-processing circuit 15 is generated, and inputted to an encoder 10 to be measured. Thereupon, a band-pass filter 11 in said encoder 10 generates a known transient phenomenon waveform signal y(t) according to the transfer function thereof, which is digital-coded in an encoder 12 and stored in a memory 14. Then, said signal is processed in the result-processing circuit 15, being made to correspond to the analog levels corresponding to the sampling points of the waveform y(t) previously stored. Thereby, it is possible to measure the input/output characteristics of the encoder to be measured, to which a DC input cannot be applied.
JP9469780A 1980-07-11 1980-07-11 Measuring circuit for encoder characteristics Pending JPS5719679A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9469780A JPS5719679A (en) 1980-07-11 1980-07-11 Measuring circuit for encoder characteristics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9469780A JPS5719679A (en) 1980-07-11 1980-07-11 Measuring circuit for encoder characteristics

Publications (1)

Publication Number Publication Date
JPS5719679A true JPS5719679A (en) 1982-02-01

Family

ID=14117367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9469780A Pending JPS5719679A (en) 1980-07-11 1980-07-11 Measuring circuit for encoder characteristics

Country Status (1)

Country Link
JP (1) JPS5719679A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61252718A (en) * 1985-05-02 1986-11-10 Hitachi Ltd Test system of analog-digital converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61252718A (en) * 1985-05-02 1986-11-10 Hitachi Ltd Test system of analog-digital converter

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