JPS5712308A - Measuring device for wall thickness of tubular material - Google Patents

Measuring device for wall thickness of tubular material

Info

Publication number
JPS5712308A
JPS5712308A JP8521480A JP8521480A JPS5712308A JP S5712308 A JPS5712308 A JP S5712308A JP 8521480 A JP8521480 A JP 8521480A JP 8521480 A JP8521480 A JP 8521480A JP S5712308 A JPS5712308 A JP S5712308A
Authority
JP
Japan
Prior art keywords
pipe
tubular material
systems
beam sources
thickness
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.)
Granted
Application number
JP8521480A
Other languages
Japanese (ja)
Other versions
JPS6042402B2 (en
Inventor
Yutaka Funiyu
Kiyoshi Okumura
Masami Shimizu
Asao Monno
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.)
JFE Steel Corp
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Kawasaki Steel 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 Fuji Electric Co Ltd, Kawasaki Steel Corp filed Critical Fuji Electric Co Ltd
Priority to JP8521480A priority Critical patent/JPS6042402B2/en
Priority to US06/275,990 priority patent/US4491731A/en
Priority to CA000380493A priority patent/CA1180131A/en
Priority to FR8112395A priority patent/FR2485719B1/en
Priority to DE19813125009 priority patent/DE3125009A1/en
Publication of JPS5712308A publication Critical patent/JPS5712308A/en
Priority to CA000438465A priority patent/CA1171557A/en
Publication of JPS6042402B2 publication Critical patent/JPS6042402B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

PURPOSE: To ensure a simultaneous and contactless measurement for thickness of a tubular material, by shifting the tubular material toward its axis, decentralizing the measuring systems along the shift direction of the tubular material and then supplying the measurement value signal into an arithmetic device with a time delay and in accordance with the shift of the tubular material.
CONSTITUTION: Three sets of measuring systems 1, 2 and 3 in which the ratiation beam sources and the detectors are combined are used, and 1-1, 1-2, 1-3 and 1-4 are used for the radiation beam sources of the 1st measuring system 1. In the same way, 2-1W2-4 and 3-1W3-4 are used for the radiation beam sources of the 2nd and 3rd measuring systems respectively. A pipe 5 to be measured is shifted toward an arrow mark in a speed v and without turning round the axis of the pipe. The systems 1W3 are installed with spaces l1 and l2, and the output signals I1', I2' and I3' obtained from these systems are used to obtain the three points on the tube circumference of the pipe 5. Then the value of lateral section at the same part of the pipe 5 is supplied to a signal processor 10 according to the rotational frequency of a roll 6. Thus the thickness of the pipe 5 is measured.
COPYRIGHT: (C)1982,JPO&Japio
JP8521480A 1980-06-25 1980-06-25 Tube wall thickness measuring device for tubular materials Expired JPS6042402B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP8521480A JPS6042402B2 (en) 1980-06-25 1980-06-25 Tube wall thickness measuring device for tubular materials
US06/275,990 US4491731A (en) 1980-06-25 1981-06-22 Tube wall thickness measurement
CA000380493A CA1180131A (en) 1980-06-25 1981-06-24 Tube wall thickness measurement
FR8112395A FR2485719B1 (en) 1980-06-25 1981-06-24 METHOD AND DEVICE FOR MEASURING THE THICKNESS OF A TUBE WALL
DE19813125009 DE3125009A1 (en) 1980-06-25 1981-06-25 PIPE WALL THICKNESS MEASUREMENT
CA000438465A CA1171557A (en) 1980-06-25 1983-10-05 Tube wall thickness measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8521480A JPS6042402B2 (en) 1980-06-25 1980-06-25 Tube wall thickness measuring device for tubular materials

Publications (2)

Publication Number Publication Date
JPS5712308A true JPS5712308A (en) 1982-01-22
JPS6042402B2 JPS6042402B2 (en) 1985-09-21

Family

ID=13852318

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8521480A Expired JPS6042402B2 (en) 1980-06-25 1980-06-25 Tube wall thickness measuring device for tubular materials

Country Status (1)

Country Link
JP (1) JPS6042402B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59183312A (en) * 1983-04-04 1984-10-18 Fujikura Ltd Inspecting device for filamentous body
US5293687A (en) * 1991-05-10 1994-03-15 Aluminum Company Of America Wheel manufacturing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59183312A (en) * 1983-04-04 1984-10-18 Fujikura Ltd Inspecting device for filamentous body
US5293687A (en) * 1991-05-10 1994-03-15 Aluminum Company Of America Wheel manufacturing method

Also Published As

Publication number Publication date
JPS6042402B2 (en) 1985-09-21

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