JPS5540978A - Signal processing method in surface deficiency detection of hot steel material - Google Patents

Signal processing method in surface deficiency detection of hot steel material

Info

Publication number
JPS5540978A
JPS5540978A JP11479578A JP11479578A JPS5540978A JP S5540978 A JPS5540978 A JP S5540978A JP 11479578 A JP11479578 A JP 11479578A JP 11479578 A JP11479578 A JP 11479578A JP S5540978 A JPS5540978 A JP S5540978A
Authority
JP
Japan
Prior art keywords
steel material
hot steel
deficiency
sets
signal processing
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
JP11479578A
Other languages
Japanese (ja)
Other versions
JPS6130685B2 (en
Inventor
Nobuo Kimura
Yasuhide Nakai
Yoshiro Nishimoto
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP11479578A priority Critical patent/JPS5540978A/en
Publication of JPS5540978A publication Critical patent/JPS5540978A/en
Publication of JPS6130685B2 publication Critical patent/JPS6130685B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE: To detect the deficiency of hot steel material surface, by picking up video signal from the radiated picture of hot steel material, taking sets of parameter through the calculation of depth and width for each, and substituting the sets into the deficiency identifying equation.
CONSTITUTION: The radiated picture of the hot steel material 1 heated is caught by using a suitable optical system, video signal VS1 is obtained with the pick up unit 2 such as ITV camera, this is stored in the memory circuit 3, and the part less than the reference level P0 preset from the signals is individually picked up, the signal depth P and the signal width W are calculated for each, and the sets of parameters P and W are fed to the operation circuit 13. In the operation circuit 13, the operation is made by the deficiency identifying equation (I), and if there are signals such as scal or scale, the output value proportional to the degree of harmfulness is fed to CPU 24 on real time and also to the display unit 25, printer 27 and monitor 26.
COPYRIGHT: (C)1980,JPO&Japio
JP11479578A 1978-09-18 1978-09-18 Signal processing method in surface deficiency detection of hot steel material Granted JPS5540978A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11479578A JPS5540978A (en) 1978-09-18 1978-09-18 Signal processing method in surface deficiency detection of hot steel material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11479578A JPS5540978A (en) 1978-09-18 1978-09-18 Signal processing method in surface deficiency detection of hot steel material

Publications (2)

Publication Number Publication Date
JPS5540978A true JPS5540978A (en) 1980-03-22
JPS6130685B2 JPS6130685B2 (en) 1986-07-15

Family

ID=14646871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11479578A Granted JPS5540978A (en) 1978-09-18 1978-09-18 Signal processing method in surface deficiency detection of hot steel material

Country Status (1)

Country Link
JP (1) JPS5540978A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0273142A (en) * 1988-09-08 1990-03-13 Kawasaki Steel Corp Surface defect inspecting method
JP2010237008A (en) * 2009-03-31 2010-10-21 Toyota Central R&D Labs Inc Device and method for measuring profile of high-temperature object
US10449584B2 (en) 2013-05-30 2019-10-22 Primetals Technologies Austria GmbH Adjustable descaler

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10256831B2 (en) * 2016-09-21 2019-04-09 Analog Devices Global Method and apparatus to reduce effect of dielectric absorption in SAR ADC

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0273142A (en) * 1988-09-08 1990-03-13 Kawasaki Steel Corp Surface defect inspecting method
JP2010237008A (en) * 2009-03-31 2010-10-21 Toyota Central R&D Labs Inc Device and method for measuring profile of high-temperature object
US10449584B2 (en) 2013-05-30 2019-10-22 Primetals Technologies Austria GmbH Adjustable descaler

Also Published As

Publication number Publication date
JPS6130685B2 (en) 1986-07-15

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