JPS59170273U - Dead line discrimination device - Google Patents

Dead line discrimination device

Info

Publication number
JPS59170273U
JPS59170273U JP6289983U JP6289983U JPS59170273U JP S59170273 U JPS59170273 U JP S59170273U JP 6289983 U JP6289983 U JP 6289983U JP 6289983 U JP6289983 U JP 6289983U JP S59170273 U JPS59170273 U JP S59170273U
Authority
JP
Japan
Prior art keywords
discrimination device
dead line
line discrimination
modulator
cable
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
JP6289983U
Other languages
Japanese (ja)
Inventor
博之 長谷川
Original Assignee
昭和電線電纜株式会社
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 昭和電線電纜株式会社 filed Critical 昭和電線電纜株式会社
Priority to JP6289983U priority Critical patent/JPS59170273U/en
Publication of JPS59170273U publication Critical patent/JPS59170273U/en
Pending legal-status Critical Current

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  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (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 the drawing]

第１図は従来の死活線判別装置の概略構成図、第２図は
本考案にかかる死活線判別装置の概略構成図である。 ５・・・サーチコイル、６・・・電流計、８・・・送信
手段、９・・・パルス発振器、１０・・・送信周波数発
振器、１１・・・変調器、１２・・・検出器。FIG. 1 is a schematic configuration diagram of a conventional dead line discriminating device, and FIG. 2 is a schematic configuration diagram of a dead line discriminating device according to the present invention. 5... Search coil, 6... Ammeter, 8... Transmitting means, 9... Pulse oscillator, 10... Transmission frequency oscillator, 11... Modulator, 12... Detector.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 複数の発振周波数を選択可能なパルス発振器と、交流周
波数発振器と、前記パルス発振器からの出力信号を前記
交流周波数発振器からの交流信号で変調してこれをケー
ブルに供給するための変調器とを有する送信手段を複数
備え、さらにケーブル中を流れる前記変調器からの出力
信号を電磁誘導によって検出するための少なくとも１つ
の検出手段とを備えたことを特徴とする死活線判別装置
。It has a pulse oscillator capable of selecting a plurality of oscillation frequencies, an AC frequency oscillator, and a modulator for modulating an output signal from the pulse oscillator with an AC signal from the AC frequency oscillator and supplying the modulated signal to the cable. A living/dead line discrimination device comprising a plurality of transmitting means and at least one detecting means for detecting an output signal from the modulator flowing through a cable by electromagnetic induction.
JP6289983U 1983-04-28 1983-04-28 Dead line discrimination device Pending JPS59170273U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6289983U JPS59170273U (en) 1983-04-28 1983-04-28 Dead line discrimination device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6289983U JPS59170273U (en) 1983-04-28 1983-04-28 Dead line discrimination device

Publications (1)

Publication Number Publication Date
JPS59170273U true JPS59170273U (en) 1984-11-14

Family

ID=30193087

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6289983U Pending JPS59170273U (en) 1983-04-28 1983-04-28 Dead line discrimination device

Country Status (1)

Country Link
JP (1) JPS59170273U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03111772A (en) * 1989-09-27 1991-05-13 Nippon Steel Corp Cable searching method
WO1993023759A1 (en) * 1992-05-20 1993-11-25 The Furukawa Electric Co., Ltd. Method of discriminating discrimination ojbect, detector therefor and input circuit of the detector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03111772A (en) * 1989-09-27 1991-05-13 Nippon Steel Corp Cable searching method
WO1993023759A1 (en) * 1992-05-20 1993-11-25 The Furukawa Electric Co., Ltd. Method of discriminating discrimination ojbect, detector therefor and input circuit of the detector

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