JPS58123371U - Digital harmonic measuring instrument - Google Patents

Digital harmonic measuring instrument

Info

Publication number
JPS58123371U
JPS58123371U JP2004782U JP2004782U JPS58123371U JP S58123371 U JPS58123371 U JP S58123371U JP 2004782 U JP2004782 U JP 2004782U JP 2004782 U JP2004782 U JP 2004782U JP S58123371 U JPS58123371 U JP S58123371U
Authority
JP
Japan
Prior art keywords
component
harmonic
measuring instrument
harmonic measuring
amplifier
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
JP2004782U
Other languages
Japanese (ja)
Inventor
広瀬　昌二
健二 橋口
Original Assignee
東京電力株式会社
向陽電気株式会社
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 東京電力株式会社, 向陽電気株式会社 filed Critical 東京電力株式会社
Priority to JP2004782U priority Critical patent/JPS58123371U/en
Publication of JPS58123371U publication Critical patent/JPS58123371U/en
Pending legal-status Critical Current

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  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

図は本考案のディジタル式高調波測定器の一実施例を示
すブロック図である。 １・・・・・・入力装置、１６・・・・・・高調波用ロ
ックインアンプ、１９・・・・・・基本波用ロックイン
アンプ、　　′２３・・・・・・演算回路、２５・・・
・・・表示装置。The figure is a block diagram showing an embodiment of the digital harmonic measuring device of the present invention. 1... Input device, 16... Lock-in amplifier for harmonics, 19... Lock-in amplifier for fundamental waves, '23... Arithmetic circuit, 25 ...
...Display device.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電流または電圧信書を入力する入力装置と、前記入力し
た信号の基本波および各高調波をそれぞれ周波数成分の
み変化して直流電圧成分を含む波形に変更しこの直流電
圧成分のみを出力するロックインアンプ左、このロック
インアンプから出力された基本波の直流成分に対する各
高調波の直流成分の割合を演算し各高調波の含有率を出
力する演算回路と、この含有率を表示する表示装置とを
備えたことを特徴とするディジタル式高調波測定器。−An input device that inputs a current or voltage message, and a lock-in amplifier that changes the fundamental wave and each harmonic of the input signal into a waveform containing a DC voltage component by changing only the frequency component, and outputs only the DC voltage component. On the left, a calculation circuit that calculates the ratio of the DC component of each harmonic to the DC component of the fundamental wave output from this lock-in amplifier and outputs the content rate of each harmonic, and a display device that displays this content rate. A digital harmonic measuring instrument characterized by: −
JP2004782U 1982-02-16 1982-02-16 Digital harmonic measuring instrument Pending JPS58123371U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004782U JPS58123371U (en) 1982-02-16 1982-02-16 Digital harmonic measuring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004782U JPS58123371U (en) 1982-02-16 1982-02-16 Digital harmonic measuring instrument

Publications (1)

Publication Number Publication Date
JPS58123371U true JPS58123371U (en) 1983-08-22

Family

ID=30032225

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004782U Pending JPS58123371U (en) 1982-02-16 1982-02-16 Digital harmonic measuring instrument

Country Status (1)

Country Link
JP (1) JPS58123371U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60161870U (en) * 1984-04-03 1985-10-28 東北電力株式会社 Measuring device for signals containing higher harmonics

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS577566A (en) * 1980-06-17 1982-01-14 Yokogawa Hokushin Electric Corp Measuring apparatus for fundamental wave and higher harmonic

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS577566A (en) * 1980-06-17 1982-01-14 Yokogawa Hokushin Electric Corp Measuring apparatus for fundamental wave and higher harmonic

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60161870U (en) * 1984-04-03 1985-10-28 東北電力株式会社 Measuring device for signals containing higher harmonics

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