JPH027556U - - Google Patents

Info

Publication number
JPH027556U
JPH027556U JP8617988U JP8617988U JPH027556U JP H027556 U JPH027556 U JP H027556U JP 8617988 U JP8617988 U JP 8617988U JP 8617988 U JP8617988 U JP 8617988U JP H027556 U JPH027556 U JP H027556U
Authority
JP
Japan
Prior art keywords
spangle
hot
steel sheet
galvanized steel
dip galvanized
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
JP8617988U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP8617988U priority Critical patent/JPH027556U/ja
Publication of JPH027556U publication Critical patent/JPH027556U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Coating With Molten Metal (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は実施例に用いた装置の構成図、第２図
は考案の原理を示す反射光信号の比較図、第３図
は検出の原理を示す微分信号図である。 １……被検査材、２……ロール、３……投光器
、４……受光器、５……増幅器、６……微分回路
、７……コンパレーター。 FIG. 1 is a block diagram of the apparatus used in the example, FIG. 2 is a comparison diagram of reflected light signals showing the principle of the invention, and FIG. 3 is a differential signal diagram showing the principle of detection. 1... material to be inspected, 2... roll, 3... emitter, 4... light receiver, 5... amplifier, 6... differential circuit, 7... comparator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 溶融亜鉛鍍金鋼板の表面を照射する投光器と、
投光面各部の反射光を受光する受光器と、前記受
光器の信号により溶融亜鉛鍍金鋼板の表面反射む
らを算定する手段と、表面反射むらが規定値より
大きいときスパングル生成信号を発する比較手段
とを有してなるスパングル検出装置。 A floodlight that illuminates the surface of the hot-dip galvanized steel sheet,
A light receiver that receives reflected light from each part of the light projection surface, means for calculating surface reflection unevenness of the hot-dip galvanized steel sheet based on signals from the light receiver, and comparison means that issues a spangle generation signal when the surface reflection unevenness is larger than a specified value. A spangle detection device comprising:
JP8617988U 1988-06-29 1988-06-29 Pending JPH027556U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8617988U JPH027556U (en) 1988-06-29 1988-06-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8617988U JPH027556U (en) 1988-06-29 1988-06-29

Publications (1)

Publication Number Publication Date
JPH027556U true JPH027556U (en) 1990-01-18

Family

ID=31310824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8617988U Pending JPH027556U (en) 1988-06-29 1988-06-29

Country Status (1)

Country Link
JP (1) JPH027556U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005221283A (en) * 2004-02-04 2005-08-18 Jfe Steel Kk Surface irregularity measuring/evaluating method and system, surface irregularity evaluation device, and program of surface irregularity measuring/evaluating method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5421759A (en) * 1977-07-19 1979-02-19 Sumitomo Metal Ind Method of measuring generating condition of spangle of zinc plated steel plate and its device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5421759A (en) * 1977-07-19 1979-02-19 Sumitomo Metal Ind Method of measuring generating condition of spangle of zinc plated steel plate and its device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005221283A (en) * 2004-02-04 2005-08-18 Jfe Steel Kk Surface irregularity measuring/evaluating method and system, surface irregularity evaluation device, and program of surface irregularity measuring/evaluating method
JP4534507B2 (en) * 2004-02-04 2010-09-01 Ｊｆｅスチール株式会社 Surface unevenness measurement / evaluation method and system, surface unevenness evaluation apparatus, and surface unevenness measurement / evaluation method program

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