JPS6079170U - digital voltmeter - Google Patents

digital voltmeter

Info

Publication number
JPS6079170U
JPS6079170U JP17201083U JP17201083U JPS6079170U JP S6079170 U JPS6079170 U JP S6079170U JP 17201083 U JP17201083 U JP 17201083U JP 17201083 U JP17201083 U JP 17201083U JP S6079170 U JPS6079170 U JP S6079170U
Authority
JP
Japan
Prior art keywords
signal
attenuator
input
converter
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
JP17201083U
Other languages
Japanese (ja)
Inventor
満 小野
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP17201083U priority Critical patent/JPS6079170U/en
Publication of JPS6079170U publication Critical patent/JPS6079170U/en
Pending legal-status Critical Current

Links

Landscapes

  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measurement Of Current Or Voltage (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]

第１図は従来のディジタル電圧計の構成図、第２図は従
来の動作タイミング図、第３図はこの考案のディジタル
電圧計の構成図、第４図はこの考案の動作タイミング図
である。 図において、１は入力アッテネータ、２は信号増幅器、
３はＡ／Ｄ変換器、４は表示器、６はアッテネータ駆動
器、７は対数増幅器、８はレンジコンパレータである。 なお図中同一あるいは相当部分には同一符号を付して示
しである。FIG. 1 is a block diagram of a conventional digital voltmeter, FIG. 2 is a conventional operation timing diagram, FIG. 3 is a block diagram of the digital voltmeter of this invention, and FIG. 4 is an operation timing diagram of this invention. In the figure, 1 is an input attenuator, 2 is a signal amplifier,
3 is an A/D converter, 4 is a display, 6 is an attenuator driver, 7 is a logarithmic amplifier, and 8 is a range comparator. In the drawings, the same or corresponding parts are designated by the same reference numerals.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 入力アッテネータと、このアッテネータ通過後゛　　　
の入力信号を増幅する信号増幅器と、この信号増幅器の
アナログ出力信号をディジタル量に変換するＡ／Ｄ変換
器と、このＡ／Ｄ変換器により得られたディジタル量を
表示する表示器とを有するデ゛　イジタル電圧計におい
て、上記入力アッテネータに並列に接続され、入力信号
のダイミンクレンジを圧縮する対数増幅器と、この対数
増幅器の出力の大きさに応じて、上記入力アッテネータ
を選択する信号とＡ／Ｄ変換器の変換動作を再スタート
させるリセット信号を出力するレンジコンパレータと、
このレンジコンパレータからの信号により入力アッテネ
ータを駆動する信号を出力するアッテネータ駆動器とを
備えたことを特徴とするディジタル電圧計。Input attenuator and after passing through this attenuator
A signal amplifier that amplifies the input signal of the signal amplifier, an A/D converter that converts the analog output signal of the signal amplifier into a digital quantity, and a display that displays the digital quantity obtained by the A/D converter. In a digital voltmeter, a logarithmic amplifier is connected in parallel to the input attenuator and compresses the input signal's dimming range; a range comparator that outputs a reset signal to restart the conversion operation of the /D converter;
A digital voltmeter comprising: an attenuator driver that outputs a signal for driving an input attenuator using a signal from the range comparator.
JP17201083U 1983-11-07 1983-11-07 digital voltmeter Pending JPS6079170U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17201083U JPS6079170U (en) 1983-11-07 1983-11-07 digital voltmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17201083U JPS6079170U (en) 1983-11-07 1983-11-07 digital voltmeter

Publications (1)

Publication Number Publication Date
JPS6079170U true JPS6079170U (en) 1985-06-01

Family

ID=30375066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17201083U Pending JPS6079170U (en) 1983-11-07 1983-11-07 digital voltmeter

Country Status (1)

Country Link
JP (1) JPS6079170U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010216926A (en) * 2009-03-16 2010-09-30 Yokogawa Electric Corp Measurement device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010216926A (en) * 2009-03-16 2010-09-30 Yokogawa Electric Corp Measurement device

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