JPS5548602A - Steel rope surface unevenness detection measuring method via magnetism-sensitive element - Google Patents

Steel rope surface unevenness detection measuring method via magnetism-sensitive element

Info

Publication number
JPS5548602A
JPS5548602A JP12196878A JP12196878A JPS5548602A JP S5548602 A JPS5548602 A JP S5548602A JP 12196878 A JP12196878 A JP 12196878A JP 12196878 A JP12196878 A JP 12196878A JP S5548602 A JPS5548602 A JP S5548602A
Authority
JP
Japan
Prior art keywords
rope
steel rope
detector
detectors
magnetism
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
JP12196878A
Other languages
Japanese (ja)
Inventor
Yoshinobu Nakamura
Yuzo Fujinaka
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.)
Mitsui Miike Machinery Co Ltd
Mitsui Miike Engineering Corp
Original Assignee
Mitsui Miike Machinery Co Ltd
Mitsui Miike Engineering Corp
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 Mitsui Miike Machinery Co Ltd, Mitsui Miike Engineering Corp filed Critical Mitsui Miike Machinery Co Ltd
Priority to JP12196878A priority Critical patent/JPS5548602A/en
Publication of JPS5548602A publication Critical patent/JPS5548602A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

PURPOSE: To ensure an easy and accurate measurement for the passing length and the twist pitch as well as the fault detection and others of the steel rope by detecting the periodic change of the gap caused by the shift of the steel rope via the magnetism-sensitive element provided near the steel rope.
CONSTITUTION: The 2nd detector 6 comprising magnetism-sentitive element 2 and magnet 4 is provided at the position apart in the longer direction of steel rope 1 and with a specified distance from 1st detector 5 featuring the same constitution as detector 6. These two detectors are made into a pair, and the space between them is set identical to the distances of 1/2-fold, 3/2-fold, etc. of rope 1. And the convex part of the rope surface is set to oppose to detector 6 when the concave part of the rope surface is opposing to detector 5. As a result, the periodic change of gaps 3A and 3B between rope 1 and detectors 5 and 6 caused by passing of rope 1 features the opposite phase at all times, and at the same time the vibration change of 3A and 3B in the lateral direction (arrow C) of the steel rope becomes the same phase. Accordingly,the measurement of the passing length and the twist pitch as well as the fault detection of the twist pitch and others can be carried out accurately for the steel rope by expressing the output difference of the both detectors as the detection signal.
COPYRIGHT: (C)1980,JPO&Japio
JP12196878A 1978-10-05 1978-10-05 Steel rope surface unevenness detection measuring method via magnetism-sensitive element Pending JPS5548602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12196878A JPS5548602A (en) 1978-10-05 1978-10-05 Steel rope surface unevenness detection measuring method via magnetism-sensitive element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12196878A JPS5548602A (en) 1978-10-05 1978-10-05 Steel rope surface unevenness detection measuring method via magnetism-sensitive element

Publications (1)

Publication Number Publication Date
JPS5548602A true JPS5548602A (en) 1980-04-07

Family

ID=14824326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12196878A Pending JPS5548602A (en) 1978-10-05 1978-10-05 Steel rope surface unevenness detection measuring method via magnetism-sensitive element

Country Status (1)

Country Link
JP (1) JPS5548602A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4338565A (en) * 1980-07-11 1982-07-06 Exploration Logging, Inc. Method and apparatus for measuring the movement of a spiral wound wire rope
JPS58127101A (en) * 1982-01-26 1983-07-28 Paafuekuto:Kk Proximity detector
JPS63165708A (en) * 1986-12-26 1988-07-09 Makome Kenkyusho:Kk Measuring apparatus for length of wire rope
RU2484456C1 (en) * 2011-12-26 2013-06-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Московский государственный университет приборостроения и информатики" Flaw detector of steel strand ropes
EP2589959A3 (en) * 2011-11-04 2016-06-01 Hitachi, Ltd. Inspection equipment for the inspection of magnetic defects of wire rope
CN110160762A (en) * 2019-05-30 2019-08-23 杭州友邦演艺设备有限公司 A kind of arenas steel wire winding detection method
CN112902821A (en) * 2021-01-08 2021-06-04 电子科技大学 Method for measuring lay length on line and evaluating health state of steel wire rope according to lay length
JP2023180625A (en) * 2022-06-10 2023-12-21 日本ケーブル株式会社 Cable splice detection device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5151963A (en) * 1974-10-31 1976-05-07 Nippon Kokan Kk Kinzokuobijotaino jihakeijosokuteihoho oyobi sochi
JPS51142355A (en) * 1975-06-03 1976-12-07 Nisshin Steel Co Ltd Detecting method of the shape of belt steel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5151963A (en) * 1974-10-31 1976-05-07 Nippon Kokan Kk Kinzokuobijotaino jihakeijosokuteihoho oyobi sochi
JPS51142355A (en) * 1975-06-03 1976-12-07 Nisshin Steel Co Ltd Detecting method of the shape of belt steel

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4338565A (en) * 1980-07-11 1982-07-06 Exploration Logging, Inc. Method and apparatus for measuring the movement of a spiral wound wire rope
JPS58127101A (en) * 1982-01-26 1983-07-28 Paafuekuto:Kk Proximity detector
JPS63165708A (en) * 1986-12-26 1988-07-09 Makome Kenkyusho:Kk Measuring apparatus for length of wire rope
EP2589959A3 (en) * 2011-11-04 2016-06-01 Hitachi, Ltd. Inspection equipment for the inspection of magnetic defects of wire rope
RU2484456C1 (en) * 2011-12-26 2013-06-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Московский государственный университет приборостроения и информатики" Flaw detector of steel strand ropes
CN110160762A (en) * 2019-05-30 2019-08-23 杭州友邦演艺设备有限公司 A kind of arenas steel wire winding detection method
CN112902821A (en) * 2021-01-08 2021-06-04 电子科技大学 Method for measuring lay length on line and evaluating health state of steel wire rope according to lay length
JP2023180625A (en) * 2022-06-10 2023-12-21 日本ケーブル株式会社 Cable splice detection device

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