JPS57135373A - Power supply device for measuring electric power apparatus - Google Patents

Power supply device for measuring electric power apparatus

Info

Publication number
JPS57135373A
JPS57135373A JP2105881A JP2105881A JPS57135373A JP S57135373 A JPS57135373 A JP S57135373A JP 2105881 A JP2105881 A JP 2105881A JP 2105881 A JP2105881 A JP 2105881A JP S57135373 A JPS57135373 A JP S57135373A
Authority
JP
Japan
Prior art keywords
waveform
circuit
signal
output
output 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
JP2105881A
Other languages
Japanese (ja)
Inventor
Toshio Kasahara
Mitsugi Aihara
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.)
SWCC Corp
Original Assignee
Showa Electric Wire and Cable Co
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 Showa Electric Wire and Cable Co filed Critical Showa Electric Wire and Cable Co
Priority to JP2105881A priority Critical patent/JPS57135373A/en
Publication of JPS57135373A publication Critical patent/JPS57135373A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

PURPOSE:To output a sine wave and a triangular wave of extremely-low frequency in an ideal shape from an output terminal, by analyzing a waveform with a calibration part as to whether an output waveform has an ideal shape or not, so as to compensate a characteristic of a circuit in accordance with said result. CONSTITUTION:A signal wave obtained from a signal wave forming part 1 containing a computer is modulated 2 by a carrier wave having a sufficiently high frequency. This modulated signal is amplified 3, and after that, is detected by a demodulating circuit 4, and an output signal is obtained in an output terminal 5. Also, an output signal of the demodulating circuit 4 is applied to a calibration part 7 through a feedback circuit 6, and calibrate and controls an output signal waveform of the signal wave forming part 1 so that an output signal from the circuit 6 becomes a desired waveform. In this way, a waveform is analyzed by the calibration part 7 as to whether the output signal waveform has an ideal shape or not, and a characteristic of a circuit is compensated in accordance with said result, therefore, voltage having an optional waveform being nearly ideal is obtained, and an electric characteristic of an electric power apparatus is measured with high accuracy.
JP2105881A 1981-02-16 1981-02-16 Power supply device for measuring electric power apparatus Pending JPS57135373A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2105881A JPS57135373A (en) 1981-02-16 1981-02-16 Power supply device for measuring electric power apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2105881A JPS57135373A (en) 1981-02-16 1981-02-16 Power supply device for measuring electric power apparatus

Publications (1)

Publication Number Publication Date
JPS57135373A true JPS57135373A (en) 1982-08-20

Family

ID=12044297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2105881A Pending JPS57135373A (en) 1981-02-16 1981-02-16 Power supply device for measuring electric power apparatus

Country Status (1)

Country Link
JP (1) JPS57135373A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62209372A (en) * 1986-03-11 1987-09-14 Kansai Electric Power Co Inc:The Method for live wire type measurement of constant of distribution line by current neutralizing method
CN107064578A (en) * 2017-04-27 2017-08-18 苏州博众精工科技有限公司 A kind of constant high-precision frequency generator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62209372A (en) * 1986-03-11 1987-09-14 Kansai Electric Power Co Inc:The Method for live wire type measurement of constant of distribution line by current neutralizing method
CN107064578A (en) * 2017-04-27 2017-08-18 苏州博众精工科技有限公司 A kind of constant high-precision frequency generator

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