JPS5518937A - Shape detector - Google Patents

Shape detector

Info

Publication number
JPS5518937A
JPS5518937A JP9146778A JP9146778A JPS5518937A JP S5518937 A JPS5518937 A JP S5518937A JP 9146778 A JP9146778 A JP 9146778A JP 9146778 A JP9146778 A JP 9146778A JP S5518937 A JPS5518937 A JP S5518937A
Authority
JP
Japan
Prior art keywords
strip
shape
generated
roller
floating
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
JP9146778A
Other languages
Japanese (ja)
Inventor
Masaki Ishimoto
Toshiyuki Kajiwara
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 Ltd
Original Assignee
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 Ltd filed Critical Hitachi Ltd
Priority to JP9146778A priority Critical patent/JPS5518937A/en
Publication of JPS5518937A publication Critical patent/JPS5518937A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

PURPOSE:To make it possible to detect the shape of a strip, without deteriorating the product value thereof, by detecting the variation in the clearance between the strip and a roller, which is generated by the rotations of the roller having magnets of different polarities alternately arranged in the circumferential direction, with the use of a gap sensor. CONSTITUTION:If a floating roller 8 is turned, there is generated a floating force for a non-magnetic member by the magnetic pole moving effects of a magnet 6, whereas there is generated an attracting force in a magnetic member so that the strip 10 is dislocated in its thickthwise direction. Therefore, when the strip 10 having its shape deteriorated passes above the floating roller 8, more dislocation is generated at a less tensile portion that at a more tensile portion. In other words, more dislocation takes place at the portion having its shape deteriorated and is measured by means of sensors 14 which are arranged in the widthwise direction of the strip 10 so that the position and quantity of the shape deterioration can be measured. Thus, it is possible to detect the shape without damaging the strip.
JP9146778A 1978-07-28 1978-07-28 Shape detector Pending JPS5518937A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9146778A JPS5518937A (en) 1978-07-28 1978-07-28 Shape detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9146778A JPS5518937A (en) 1978-07-28 1978-07-28 Shape detector

Publications (1)

Publication Number Publication Date
JPS5518937A true JPS5518937A (en) 1980-02-09

Family

ID=14027179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9146778A Pending JPS5518937A (en) 1978-07-28 1978-07-28 Shape detector

Country Status (1)

Country Link
JP (1) JPS5518937A (en)

Similar Documents

Publication Publication Date Title
ES2026525T3 (en) DETECTION OF MAGNETIC DISCONTINUITIES.
JPS57189011A (en) Position detecting mechanism
EP0977015A3 (en) Magnetic sensor, signal processing method for magnetic sensors, and detecting apparatus
FI870251A0 (en) FOERFARANDE OCH ANORDNING FOER MAETNING AV AVSTAONDET MELLAN TVAO MOTSTAOENDE YTOR, VILKA ROER SIG I FOERHAOLLANDE TILL VARANDRA.
JPS5518937A (en) Shape detector
JPS57152363A (en) Detector for displacement rate of ram in die casting machine
DE59603957D1 (en) Device for detecting the movement of a drive belt for a roller shutter curtain
JPS5535203A (en) Multipolar magnetizing magnet disc
JPS55101044A (en) Flaw detector
JPS54103372A (en) Magnetic sensor
SE401901B (en) DEVICE FOR INDUCTIVE DETECTION OF CHANGES IN RELATIVE MODE BETWEEN AN OBJECT OF MAGNETIC FLOOD EFFECTIVE MATERIAL AND A FERROMAGNETIC, FROM THE OBJECT SEPARATED
JPS5633541A (en) Detecting device for flaw of magnetic material
JPS52101065A (en) Magnetic scale
JPS6486030A (en) Torque detector
EP0987523A2 (en) Apparatus for and method of generating a pulse signal
JPS5783150A (en) Commutatorless motor
JPS562566A (en) Detecting method for rotation of motor
JPS5524615A (en) Position detector
GB1311907A (en) Apparatus for the magnetic testing of metal strip
FR2294954A1 (en) Conveyor belt break detector - with sensor detecting fields of strip magnets in fastener
JPS55117955A (en) Semiconductor sensor and impurity detection method
SU427238A1 (en) LEVEL SENSOR BULK OF FERROMAGNETIC MATERIALS
SU441512A1 (en) Contactless electrodynamic sensor
SU365552A1 (en) TRAVEL SENSOR
SU1597518A1 (en) Position pickup