JPS57113370A - Measuring method of distortion factor - Google Patents

Measuring method of distortion factor

Info

Publication number
JPS57113370A
JPS57113370A JP18906780A JP18906780A JPS57113370A JP S57113370 A JPS57113370 A JP S57113370A JP 18906780 A JP18906780 A JP 18906780A JP 18906780 A JP18906780 A JP 18906780A JP S57113370 A JPS57113370 A JP S57113370A
Authority
JP
Japan
Prior art keywords
voltage
time
measuring
output voltage
distortion factor
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
JP18906780A
Other languages
Japanese (ja)
Inventor
Toshio Tsuji
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 JP18906780A priority Critical patent/JPS57113370A/en
Publication of JPS57113370A publication Critical patent/JPS57113370A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/16—Spectrum analysis; Fourier analysis
    • G01R23/20—Measurement of non-linear distortion

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

PURPOSE:To make it possible to measure the distortion factor of an amplifier, etc. with a simple measuring system, by measuring an output voltage of a signal transmitting circit at the time of impression of two signal voltages of high and low, and then, by seeking the signal transmitting distortion factor from the input voltage and the output voltage. CONSTITUTION: An output voltage V01 of an amplifier, at the time of input of an input signal voltage Vi1 whose distortion is so small as to be negligible, is sought by a voltage measuring circuit Ll through a low-pass filter LPF. And then, an output voltage V02, at the time of impression of a large input signal voltage Vi2, is measured by the voltage measuring circuit Ll. At that time, a distortion occurs in the amplifier dividing the fundamental frequency component into a high harmonic component VH and a fundamental frequency component VL, and therefore, by seeking Y=1-(V02/Vi2)/(V01/Vi1), the distortion factor can be sought. It is possible, by doing so, to simplify the measuring system to such an extent as to eliminate necessity of measuring the high harmonic component.
JP18906780A 1980-12-29 1980-12-29 Measuring method of distortion factor Pending JPS57113370A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18906780A JPS57113370A (en) 1980-12-29 1980-12-29 Measuring method of distortion factor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18906780A JPS57113370A (en) 1980-12-29 1980-12-29 Measuring method of distortion factor

Publications (1)

Publication Number Publication Date
JPS57113370A true JPS57113370A (en) 1982-07-14

Family

ID=16234738

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18906780A Pending JPS57113370A (en) 1980-12-29 1980-12-29 Measuring method of distortion factor

Country Status (1)

Country Link
JP (1) JPS57113370A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009064653A (en) * 2007-09-06 2009-03-26 Denso Corp Lead jointing method of electronic component

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009064653A (en) * 2007-09-06 2009-03-26 Denso Corp Lead jointing method of electronic component

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