JPS55103458A - Magnetic flaw detector for rope - Google Patents

Magnetic flaw detector for rope

Info

Publication number
JPS55103458A
JPS55103458A JP1041079A JP1041079A JPS55103458A JP S55103458 A JPS55103458 A JP S55103458A JP 1041079 A JP1041079 A JP 1041079A JP 1041079 A JP1041079 A JP 1041079A JP S55103458 A JPS55103458 A JP S55103458A
Authority
JP
Japan
Prior art keywords
rope
hole
ropes
plural number
several
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
JP1041079A
Other languages
Japanese (ja)
Inventor
Yoshihiko Sato
Kenji Kawamata
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.)
Hitachi Elevator Engineering and Service Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Elevator Engineering and Service Co Ltd
Hitachi 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 Hitachi Elevator Engineering and Service Co Ltd, Hitachi Ltd filed Critical Hitachi Elevator Engineering and Service Co Ltd
Priority to JP1041079A priority Critical patent/JPS55103458A/en
Publication of JPS55103458A publication Critical patent/JPS55103458A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

PURPOSE: To realize the flaw detection for several ropes at one time by providing several pierced holes to the pole piece.
CONSTITUTION: Plural number of pierced hole H are provided to each of a set of pole pieces 4a comprising pieces 4a1 and 4a2 of the fixed side plus 4b1 and 4b2 of detachable side each. Then plural number of running ropes 1 which are the test objects are inserted into each hole H. Thus the magnetic force of exciter 2 is distributed evenly to ropes 1 through hole H of piece 4a, and furthermore the cross- sectional space area has no change between hole H and rope 1 regardless of the vibrating direction as long as rope 1 moves within hole H althrough rope 1 may have vibrations. Accordingly, no change occurs to the density of the magnetic flux within rope 1. As a result, several ropes 1 are excited simultaneously with the contant magnetic flux density of each rope 1, thus ensuring the high-accuracy measurement and detection for the disconnection, corrosion, wear and others of the strand of plural number of rope 1.
COPYRIGHT: (C)1980,JPO&Japio
JP1041079A 1979-02-02 1979-02-02 Magnetic flaw detector for rope Pending JPS55103458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1041079A JPS55103458A (en) 1979-02-02 1979-02-02 Magnetic flaw detector for rope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1041079A JPS55103458A (en) 1979-02-02 1979-02-02 Magnetic flaw detector for rope

Publications (1)

Publication Number Publication Date
JPS55103458A true JPS55103458A (en) 1980-08-07

Family

ID=11749366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1041079A Pending JPS55103458A (en) 1979-02-02 1979-02-02 Magnetic flaw detector for rope

Country Status (1)

Country Link
JP (1) JPS55103458A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100767743B1 (en) 2007-03-07 2007-10-17 김성삼 Damage detecting apparatus of wire rope
WO2019171667A1 (en) * 2018-03-08 2019-09-12 株式会社島津製作所 Magnetic body inspection device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100767743B1 (en) 2007-03-07 2007-10-17 김성삼 Damage detecting apparatus of wire rope
WO2019171667A1 (en) * 2018-03-08 2019-09-12 株式会社島津製作所 Magnetic body inspection device
CN111684276A (en) * 2018-03-08 2020-09-18 株式会社岛津制作所 Magnetic substance inspection device
JPWO2019171667A1 (en) * 2018-03-08 2020-12-03 株式会社島津製作所 Magnetic material inspection device
EP3764094A4 (en) * 2018-03-08 2021-11-17 Shimadzu Corporation Magnetic body inspection device
US11485609B2 (en) 2018-03-08 2022-11-01 Shimadzu Corporation Magnetic body inspection device
CN111684276B (en) * 2018-03-08 2023-12-08 株式会社岛津制作所 Magnetic body inspection device

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