JPS61108912U - - Google Patents

Info

Publication number
JPS61108912U
JPS61108912U JP19365184U JP19365184U JPS61108912U JP S61108912 U JPS61108912 U JP S61108912U JP 19365184 U JP19365184 U JP 19365184U JP 19365184 U JP19365184 U JP 19365184U JP S61108912 U JPS61108912 U JP S61108912U
Authority
JP
Japan
Prior art keywords
resistor
bridge circuit
power supply
diagram showing
cables
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
JP19365184U
Other languages
English (en)
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 filed Critical
Priority to JP19365184U priority Critical patent/JPS61108912U/ja
Publication of JPS61108912U publication Critical patent/JPS61108912U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Description

【図面の簡単な説明】
図面は本考案の実施例を示すもので、第１図は
本考案の第１実施例の全体の構成を示す説明図、
第２図は第１図を具体的な電気回路に置換えた様
子を示す回路図、第３図は可変抵抗器の詳細な構
造を示す説明図、第４図はケーブルの導体断面積
Ａよりその導体直流抵抗Ｒを求めるための、導体
断面面積Ａと定数Ｋ及び抵抗Ｒとの関係を示す説
明図、第５図は第２実施例での標準抵抗器の構成
を示す回路図、第６図は第３実施例での直流安定
化電源の構成を示す回路図である。 Ｕ１…ケーブル、２…測定用リード線、３…ケ
ーブル長測定装置、４…入力端子、５…直流安定
化電源、６…標準抵抗器、７…固定抵抗器、８…
可変抵抗器、９…検流計、１０…スイツチ、１１
…感度調整抵抗器、１２…１０％ピツチ抵抗器、
１３…０．１％ピツチ可変抵抗器、１４…第１標
準抵抗器、１５…第２標準抵抗器、１６…抵抗切
換スイツチ、１７…第１直流電源、１８…第２直
流電源、１９…電源切換スイツチ、２０…電流制
限抵抗器、２１…ブリツジ回路、２２…接点、２
３…摺動子。

Claims (1)

    【実用新案登録請求の範囲】
  1. 末端部を接続した２本のケーブルと、このケー
    ブルを抵抗の一部として用いるブリツジ回路と、
    前記ブリツジ回路の平行を保つための調節用の可
    変抵抗器と、前記ブリツジ回路に電流を供給する
    ための安定化電源とから構成されていることを特
    徴とするケーブル長測定装置。
JP19365184U 1984-12-19 1984-12-19 Pending JPS61108912U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19365184U JPS61108912U (ja) 1984-12-19 1984-12-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19365184U JPS61108912U (ja) 1984-12-19 1984-12-19

Publications (1)

Publication Number Publication Date
JPS61108912U true JPS61108912U (ja) 1986-07-10

Family

ID=30751073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19365184U Pending JPS61108912U (ja) 1984-12-19 1984-12-19

Country Status (1)

Country Link
JP (1) JPS61108912U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005050128A1 (en) * 2003-11-19 2005-06-02 Notton Co., Ltd. An instrument for measuring lengths of electric wires

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5516431B2 (ja) * 1972-09-13 1980-05-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5516431B2 (ja) * 1972-09-13 1980-05-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005050128A1 (en) * 2003-11-19 2005-06-02 Notton Co., Ltd. An instrument for measuring lengths of electric wires

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