JPS5750664A - Detector for disconnected part of wire - Google Patents

Detector for disconnected part of wire

Info

Publication number
JPS5750664A
JPS5750664A JP55126222A JP12622280A JPS5750664A JP S5750664 A JPS5750664 A JP S5750664A JP 55126222 A JP55126222 A JP 55126222A JP 12622280 A JP12622280 A JP 12622280A JP S5750664 A JPS5750664 A JP S5750664A
Authority
JP
Japan
Prior art keywords
wire
core
disconnection
coil
electric current
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
JP55126222A
Other languages
Japanese (ja)
Inventor
Noriyuki Hoshi
Motonobu Kato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP55126222A priority Critical patent/JPS5750664A/en
Publication of JPS5750664A publication Critical patent/JPS5750664A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/54—Testing for continuity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Locating Faults (AREA)

Abstract

PURPOSE:To make the disconnection of a wire disposed in an alert area easily detectable and make the wire disconnection restorable in a short time by placing said wire in the central part of a core for radio transmission and a core for detection, supplying a high frequency signal to the wire and detecting the electric current flowing in the wire. CONSTITUTION:A wire 10 is inserted through the gaps 9, 11 of a trochoidal core 8 for radio transmission and a trochoidal core 12 for detection consisting of magnetic materials, and is disposed in the center of the cores 8, 12. When high frequency electric current is supplied from a radio transmitter 16 to the coil 7 wound on the core 8, a magnetic flux is generated in this wire 10 to the circumferential direction of the core 8, and an induction magnetic field is generated in the wire 10, by which electric current is flowed therein. The current flowing in said wire 10 is outputted at both ends of the coil 13 wound on the core 12. The output of the coil 13 is detected with a detecting circuit 14, by which the presence or absence of the disconnection of the wire 10 is judged and displayed. Namely, if the current flows in the coil 13, it is indicative of the absence of disconnection in the wire 10 and if no current flows, it is indicative of the presence of disconnection in the wire 10.
JP55126222A 1980-09-11 1980-09-11 Detector for disconnected part of wire Pending JPS5750664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55126222A JPS5750664A (en) 1980-09-11 1980-09-11 Detector for disconnected part of wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55126222A JPS5750664A (en) 1980-09-11 1980-09-11 Detector for disconnected part of wire

Publications (1)

Publication Number Publication Date
JPS5750664A true JPS5750664A (en) 1982-03-25

Family

ID=14929763

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55126222A Pending JPS5750664A (en) 1980-09-11 1980-09-11 Detector for disconnected part of wire

Country Status (1)

Country Link
JP (1) JPS5750664A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994023307A1 (en) * 1993-04-01 1994-10-13 The Nippon Signal Co., Ltd. Current sensor and motor rotation sensor using the current sensor
US6281685B1 (en) * 1995-08-29 2001-08-28 The United States Of America As Represented By The Secretary Of The Army Cable shield fault locator
JP2004091958A (en) * 2002-08-30 2004-03-25 Kanai Hiroaki Abnormality detection apparatus for wire

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4321868Y1 (en) * 1965-04-03 1968-09-14
JPS4859386A (en) * 1971-11-29 1973-08-20

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4321868Y1 (en) * 1965-04-03 1968-09-14
JPS4859386A (en) * 1971-11-29 1973-08-20

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994023307A1 (en) * 1993-04-01 1994-10-13 The Nippon Signal Co., Ltd. Current sensor and motor rotation sensor using the current sensor
US5568059A (en) * 1993-04-01 1996-10-22 The Nippon Signal Co., Ltd. Current sensor and motor rotation sensor using such current sensor
US6281685B1 (en) * 1995-08-29 2001-08-28 The United States Of America As Represented By The Secretary Of The Army Cable shield fault locator
JP2004091958A (en) * 2002-08-30 2004-03-25 Kanai Hiroaki Abnormality detection apparatus for wire

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