JPS58177878U - Digital voltmeter with phase rotation display - Google Patents

Digital voltmeter with phase rotation display

Info

Publication number
JPS58177878U
JPS58177878U JP7348882U JP7348882U JPS58177878U JP S58177878 U JPS58177878 U JP S58177878U JP 7348882 U JP7348882 U JP 7348882U JP 7348882 U JP7348882 U JP 7348882U JP S58177878 U JPS58177878 U JP S58177878U
Authority
JP
Japan
Prior art keywords
phase rotation
voltage
display
digital voltmeter
phase
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.)
Granted
Application number
JP7348882U
Other languages
Japanese (ja)
Other versions
JPH044228Y2 (en
Inventor
飯田　一雄
Original Assignee
株式会社恭和電機工業所
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 株式会社恭和電機工業所 filed Critical 株式会社恭和電機工業所
Priority to JP7348882U priority Critical patent/JPS58177878U/en
Publication of JPS58177878U publication Critical patent/JPS58177878U/en
Application granted granted Critical
Publication of JPH044228Y2 publication Critical patent/JPH044228Y2/ja
Granted 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) [Abstract] 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図はこの考案の相回転表示付デジタル電圧計の回路
図、第２図ａ、　　ｂは相回転検出回路網を説明するた
めのベクトル図である。 図中、Ｐｌ、Ｐ２．Ｐ３は測定端子、２は電源回路、３
は電圧分圧回路、４は基準電圧設定回路、５はＩＣ回路
、６は表示器、８は相回転検出回路網、□Ｎ２はネオン
管を示す。FIG. 1 is a circuit diagram of a digital voltmeter with phase rotation display of this invention, and FIGS. 2a and 2b are vector diagrams for explaining the phase rotation detection circuit network. In the figure, Pl, P2. P3 is the measurement terminal, 2 is the power supply circuit, 3
4 is a voltage dividing circuit, 4 is a reference voltage setting circuit, 5 is an IC circuit, 6 is a display, 8 is a phase rotation detection circuit, and □N2 is a neon tube.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 測定端子間の電圧を電源回路、および電圧分圧回路に入
力すると共に、前記電源回路の出力電圧で駆動される集
積回路によって、前記電圧分圧回路の出力電圧をデジタ
ル信号に変換し、表示器によって測定電圧を表示するよ
うにしたデジタル電圧計において、前記測定端子を３端
子として相回転検出回路網を接続し、被測定三相交流電
圧が正の相回転位相で測定端子に接続されたとき発光す
る発光源によって、前記表示器の照明を行うようにした
ことを特徴とする相回転表示付デジタル電圧計。The voltage between the measurement terminals is input to a power supply circuit and a voltage divider circuit, and an integrated circuit driven by the output voltage of the power supply circuit converts the output voltage of the voltage divider circuit into a digital signal, which is displayed on the display. In a digital voltmeter configured to display the measured voltage, when the measurement terminal is connected to a phase rotation detection circuit network as three terminals, and the three-phase AC voltage to be measured is connected to the measurement terminal in a positive phase rotation phase. A digital voltmeter with a phase rotation display, characterized in that the display device is illuminated by a light emitting source that emits light.
JP7348882U 1982-05-21 1982-05-21 Digital voltmeter with phase rotation display Granted JPS58177878U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7348882U JPS58177878U (en) 1982-05-21 1982-05-21 Digital voltmeter with phase rotation display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7348882U JPS58177878U (en) 1982-05-21 1982-05-21 Digital voltmeter with phase rotation display

Publications (2)

Publication Number Publication Date
JPS58177878U true JPS58177878U (en) 1983-11-28
JPH044228Y2 JPH044228Y2 (en) 1992-02-07

Family

ID=30082996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7348882U Granted JPS58177878U (en) 1982-05-21 1982-05-21 Digital voltmeter with phase rotation display

Country Status (1)

Country Link
JP (1) JPS58177878U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017133914A (en) * 2016-01-27 2017-08-03 日置電機株式会社 Measurement device
JP2017138118A (en) * 2016-02-01 2017-08-10 日置電機株式会社 Measurement device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017133914A (en) * 2016-01-27 2017-08-03 日置電機株式会社 Measurement device
JP2017138118A (en) * 2016-02-01 2017-08-10 日置電機株式会社 Measurement device

Also Published As

Publication number Publication date
JPH044228Y2 (en) 1992-02-07

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