JPS6212445B2 - - Google Patents
Info
- Publication number
- JPS6212445B2 JPS6212445B2 JP56122744A JP12274481A JPS6212445B2 JP S6212445 B2 JPS6212445 B2 JP S6212445B2 JP 56122744 A JP56122744 A JP 56122744A JP 12274481 A JP12274481 A JP 12274481A JP S6212445 B2 JPS6212445 B2 JP S6212445B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- imaging device
- view
- plate material
- width
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 27
- 238000003384 imaging method Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 8
- 230000000007 visual effect Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/04—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
- G01B11/046—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring width
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Elements Other Than Lenses (AREA)
- Control Of Metal Rolling (AREA)
Description
【発明の詳細な説明】
本発明は板材の圧延状態を監視する装置に関す
るものであつて、より具体的には熱間圧延鋼板の
板幅、蛇行の測定、監視を可能とする装置を提案
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for monitoring the rolling condition of a plate, and more specifically, proposes a device that can measure and monitor the width and meandering of a hot rolled steel plate. It is something.
タンデムミルを用いた鋼板圧延ラインにおいて
は、鋼板の幅寸法測定手段として最終スタンド出
側にて鋼板通過域の下側に光源を、また上側に受
光系を配した光学式の幅計を用いている。各スタ
ンドでの精細な圧延制御を行うためには各スタン
ド間で板幅を測定するのが望ましいが、スタンド
間には幅計設置に十分な寸法上の余裕がないこ
と、多塵環境であつて幅計設置に適さないこと、
スタンド間のルーパの作用により圧延材が上下動
し、光源、受光素子の適正な設置が難しいこと等
の理由により、実現されていない。 In a steel plate rolling line using a tandem mill, an optical width meter with a light source placed below the steel plate passage area and a light receiving system above the final stand exit side is used as a means of measuring the width of the steel plate. There is. In order to perform precise rolling control at each stand, it is desirable to measure the strip width between each stand. It is not suitable for installing a width gauge.
This has not been realized because the rolled material moves up and down due to the action of the looper between the stands, making it difficult to properly install the light source and light receiving element.
本発明はタンデムミルのスタンド間の狭隘な位
置において、圧延材の幅寸法等を高精度で測定で
きる装置を提供することを目的とし、以下に本発
明をその実施例を示す図面に基いて詳述する。 An object of the present invention is to provide a device that can measure the width dimension of a rolled material with high precision in a narrow position between the stands of a tandem mill. Describe.
第１図は本発明に係る板材の圧延監視装置の光
学的レイアウトを示している。白抜矢符方向に移
動している板材（熱間圧延鋼板）１０の移動域上
方にはAr（アルゴン）レーザ発生器１及びビー
ム拡大器３が取付けられており、Arレーザ発生
器１から水平に発せられたレーザビーム（波長
4880Å、5120Å）はビームベンダ２によつて下向
きになり、レンズ、プリズム等よりなるビーム拡
大器３によつて帯状のビームとなつて板材１０を
夫々の長手方向が直交するように照射する。光源
として使用するレーザ発生器はArレーザ発生器
に限るものではないが熱間板材の自家発光色と相
違する色の波長を主成分とする光を発するものを
用い自家発光の影響を回避する。Arレーザ以外
ではN2レーザ、He−Cdレーザ等の他のレーザの
外、超高圧水銀灯も利用できる。 FIG. 1 shows an optical layout of a rolling monitoring device for plate material according to the present invention. An Ar (argon) laser generator 1 and a beam expander 3 are installed above the moving area of the plate material (hot-rolled steel plate) 10 that is moving in the direction of the white arrow. Laser beam emitted at (wavelength
4880 Å, 5120 Å) are directed downward by a beam bender 2, and are turned into a belt-shaped beam by a beam expander 3 consisting of a lens, prism, etc., and irradiate the plate material 10 so that their longitudinal directions are orthogonal to each other. The laser generator used as the light source is not limited to an Ar laser generator, but one that emits light whose main component is a wavelength of a color different from the self-emission color of the hot plate material is used to avoid the influence of self-emission. In addition to Ar laser, other lasers such as N 2 laser and He-Cd laser can also be used, as well as ultra-high pressure mercury lamps.
一方撮像系についみると帯状のビーム照射機１
１を視野とするように多面鏡（実施例では６面
鏡）４、干渉フイルタ５及びテレビカメラ６が配
置されている。テレビカメラ６の撮像信号はテレ
ビカメラコントローラ７からモニタ８へ伝えられ
てここに撮像画像が表示される。第２図はモニタ
８の画面の一例を示し、第３図は板材１０の平面
図を示している。モニタ８画面の左上の領域Lu
には多面鏡４の第１面４１からの反射光によつて
得られた像が現れ、この像、換言すれば第１面４
１による視野１０１は板材１０の左半分における
ビーム照射域１１の比較的板材中心部に近い部分
に該当し、モニタ画面の左中の領域Lmには多面
鏡４の第２面４２から反射光によつて得られた像
が現れ、この像、換言すれば第２面４２による視
野１０２は第１面４１による視野１０１よりも少
し外方よりの部分に該当し、更にモニタ画面の左
下の領域Ldには多面鏡４の第３面４３からの反
射光によつて得られた像が現れ、この像、換言す
れば第３面４３による視野１０３は第２面４２に
よる視野よりも更に少し外方よりの部分に該当
し、これらの視野１０１と１０２とが、また１０
２と１０３とが夫々重複する領域を有し、いずれ
かの視野内に板材１０の端部が位置するようにこ
の多面鏡４を構成し、またそのテレビカメラ６及
び板材１０に対する相対位置を定めている。右側
については板材１０の幅方向中心に対して左右対
称になるようにしてある。即ちモニタ画面の右
上、右中、右下の各領域Ru、Rm、Rdには多面
鏡４の第４、５、６面４４，４５，４６からの各
反射光によつて得られた像が現れ、この像、換言
すれば各面４４，４５，４６による視野１０４，
１０５，１０６は板材１０の右半分に該当し、視
野１０４が板材中心部寄り、視野１０６が外方寄
り、視野１０５がその中間としておにこれらの視
野１０４，１０５，１０６の夫々が板材１０の幅
方向中心に対して各視野１０１，１０２，１０３
の夫々と対称になつている。水平に移動される板
材１０、光軸を水平にしたテレビカメラ６の間に
あつてこの多面鏡４は水平軸、鉛直軸に対して共
に45゜をなすように配されるが、テレビカメラ６
に上述のような視野を与えることを可能とする多
面鏡４の構成は次のとおりである。即ち第４図に
正面視で示すように第２面４２及び第５面４５は
多面鏡４の基準面（背面）に垂直な中心面に対し
てθの開き角度を有し、第１面４１及び第４面４
４はそれよりΔθだけ大きい角度θ＋Δθ、また
第３面４３及び第６面４６は同じくΔθだけ小さ
い角度θ−Δθを開き角度としている。また第５
図に側面視で示すように第１面４１及び第３面４
３は第２面４２側へ角度αだけ傾けてある。第４
面４４及び第６面４６も第５面４５に対して同様
になつている。 On the other hand, looking at the imaging system, a belt-shaped beam irradiator 1
A polygonal mirror (six-sided mirror in the embodiment) 4, an interference filter 5, and a television camera 6 are arranged so that the field of view is 1. An imaging signal from the television camera 6 is transmitted from a television camera controller 7 to a monitor 8, where the captured image is displayed. FIG. 2 shows an example of the screen of the monitor 8, and FIG. 3 shows a plan view of the plate material 10. Upper left area Lu of monitor 8 screen
An image obtained by the reflected light from the first surface 41 of the polygon mirror 4 appears, and this image, in other words, the first surface 4
The field of view 101 according to No. 1 corresponds to a part of the beam irradiation area 11 in the left half of the plate 10 that is relatively close to the center of the plate, and the area Lm in the middle left of the monitor screen has reflected light from the second surface 42 of the polygon mirror 4. An image thus obtained appears, and this image, in other words, the field of view 102 due to the second surface 42 corresponds to a part slightly further outward than the field of view 101 due to the first surface 41, and furthermore, the area Ld at the lower left of the monitor screen. An image obtained by the reflected light from the third surface 43 of the polygon mirror 4 appears, and in other words, the field of view 103 due to the third surface 43 is slightly further outward than the field of view due to the second surface 42. These fields of view 101 and 102 also correspond to 10
The polygon mirror 4 is configured such that the polygon mirrors 2 and 103 each have an overlapping area, and the end of the plate material 10 is located within either field of view, and its relative position with respect to the television camera 6 and the plate material 10 is determined. ing. The right side is symmetrical with respect to the center of the plate material 10 in the width direction. That is, in the upper right, middle right, and lower right areas Ru, Rm, and Rd of the monitor screen, images obtained by the respective reflected lights from the fourth, fifth, and sixth surfaces 44, 45, and 46 of the polygon mirror 4 are displayed. This image, in other words, the field of view 104 by each surface 44, 45, 46,
Reference numerals 105 and 106 correspond to the right half of the plate 10, with the visual field 104 being closer to the center of the plate, the visual field 106 being closer to the outside, and the visual field 105 being in the middle. Each field of view 101, 102, 103 with respect to the center in the width direction
are symmetrical with each other. The polygon mirror 4 is placed between the horizontally moved plate 10 and the television camera 6 with its optical axis horizontal, and is arranged at an angle of 45 degrees to both the horizontal and vertical axes.
The configuration of the polygon mirror 4 that can provide the above-mentioned field of view is as follows. That is, as shown in a front view in FIG. and 4th side 4
4 has an opening angle of θ+Δθ which is larger by Δθ than that, and the third surface 43 and the sixth surface 46 have an opening angle of θ−Δθ which is also smaller by Δθ. Also the fifth
As shown in the side view in the figure, the first surface 41 and the third surface 4
3 is inclined toward the second surface 42 by an angle α. Fourth
The surface 44 and the sixth surface 46 are also similar to the fifth surface 45.
干渉フイルタ５は投射レーザビームの波長の主
成分をその狭い透過域とするものであり、テレビ
カメラ６のレンズの直前に取付けられ、ビーム照
射域１１の光学的情報のみがテレビカメラ６に有
効に捉えられる構成にしてある。 The interference filter 5 has a narrow transmission range for the main wavelength component of the projected laser beam, and is installed just in front of the lens of the television camera 6, so that only the optical information of the beam irradiation area 11 is effectively transmitted to the television camera 6. It is structured so that it can be captured.
テレビカメラコントローラ７から出力されるビ
デオ信号はモニタ８に表示される第２図に示す如
き画像情報を有しているが、この信号は画像信号
処理装置９へも入力される。画像信号処理装置９
としては、本発明装置を幅計として使用する場合
には、領域Lu、Ru内にある特定の１本の水平走
査線Ｕ、同じく領域Lm，Rm内にある特定の１
本の水平走査線Ｍ及び領域Ld，Rd内にある特定
の１本の水平走査線Ｄにつきそおビデオ信号が白
レベルにある時間を計測するものを用いる。これ
は垂直同期信号が出たあとの所定数番目の水平同
期信号に続くビデオ信号を抽出してこれを２値化
し、この２値化信号が白レベル（例えばハイレベ
ル）にある時間をクロツクパルスの計数にて求め
る回路構成を有している。このようにして計測さ
れる時間は例えば視野１０１，１０４について第
３図に示すように板材１０の左端から視野１０１
の右端までの寸法W1と視野１０４の左端から板
材１０の右端までの寸法W2との和に相当する。
けだしビーム照射域１１のうち板材１０から外れ
ている部分は板材１０よりも十分低い床面等にあ
り、テレビカメラ６によつては暗部として捉えら
れるからである。そして視野１０１の右端と視野
１０４の左端との間は一定値W14であるから前述
のようにして水平走査線Ｕについて求めたW1＋
W2の情報とW14とを加算することによつてビー
ム照射域１１での板材の幅寸法が求められる。こ
れは水平走査線Ｍ，Ｄについても同様であるが、
図示の例では板材の幅寸法が短かく視野１０１，
１０２，１０４，１０５にその端縁が位置するの
で領域Ld，Rdには板材の像は現れず水平走査線
Ｄについての長さデータは得られないことにな
る。 The video signal output from the television camera controller 7 has image information displayed on the monitor 8 as shown in FIG. 2, and this signal is also input to the image signal processing device 9. Image signal processing device 9
When the device of the present invention is used as a width gauge, one specific horizontal scanning line U in the areas Lu and Ru, and one specific horizontal scanning line U in the areas Lm and Rm
A device is used that measures the time during which the video signal is at the white level for each horizontal scanning line M of the book and one specific horizontal scanning line D within the regions Ld and Rd. This extracts the video signal that follows a predetermined number of horizontal synchronization signals after the vertical synchronization signal is output, and converts it into a binary signal.The time during which this binary signal is at the white level (for example, high level) is determined by the clock pulse. It has a circuit configuration determined by counting. The time measured in this way is, for example, as shown in FIG.
This corresponds to the sum of the dimension W 1 from the left end of the visual field 104 to the right end of the plate material 10 .
This is because the portion of the exposed beam irradiation area 11 that is outside the plate material 10 is located on a floor surface or the like that is sufficiently lower than the plate material 10, and may be captured by the television camera 6 as a dark area. Since the distance between the right end of the visual field 101 and the left end of the visual field 104 is a constant value W 14 , W 1 + obtained for the horizontal scanning line U as described above.
By adding the information on W 2 and W 14 , the width dimension of the plate material in the beam irradiation area 11 can be determined. This is the same for horizontal scanning lines M and D, but
In the illustrated example, the width dimension of the plate material is short and the field of view 101,
Since the edges are located at 102, 104, and 105, no image of the plate material appears in the areas Ld and Rd, and length data regarding the horizontal scanning line D cannot be obtained.
第６図は本発明装置をスタンド間の幅寸法測定
に供した場合の模式的ブロツク図である。相隣す
るスタンド２１，２２間の板幅寸法を測定するよ
うにこれらのスタンド２１，２２のミルハウジン
グを利用して、板材１０の移動域上方に本発明装
置の光学系が配置されておりテレビカメラ６の信
号はケーブルにて遠隔配置したテレビカメラコン
トローラ７に送られ、該コントローラ７の出力は
モニタ８及び前述の画像処理装置９へ与れられ
る。画像処理装置９はW1＋W2に関する情報、よ
り具体的には水平走査線Ｕ，Ｍ，Ｄにつきビデオ
信号が黒レベルから白レベルに変つたタイミング
及び白レベルから黒レベルに復帰したタイミン
グ、換言すればラスタ上における板材の両端縁が
現れている水平方向位置に関するデータを演算装
置２０へ与える。 FIG. 6 is a schematic block diagram when the apparatus of the present invention is used to measure the width dimension between stands. The optical system of the apparatus of the present invention is placed above the moving range of the plate 10 using the mill housings of the stands 21 and 22 to measure the plate width between the adjacent stands 21 and 22, and the television The signal from the camera 6 is sent via a cable to a remotely located television camera controller 7, and the output of the controller 7 is provided to a monitor 8 and the image processing device 9 described above. The image processing device 9 receives information regarding W 1 + W 2 , more specifically, the timing at which the video signal changes from black level to white level and the timing at which it returns from white level to black level for horizontal scanning lines U, M, and D, in other words. Then, data regarding the horizontal position on the raster where both edges of the plate material appear is provided to the arithmetic unit 20.
２３はスタンド２１，２２間の板材１０に張力
を与えるルーパでありこれに付設されたルーパ角
度検出計２４の出力は演算装置２０へ与えられ
る。またスタンド２１のロール駆動系に設けたロ
ール回転計２５の出力信号も演算装置２０へ与え
られる。 Reference numeral 23 denotes a looper that applies tension to the plate material 10 between the stands 21 and 22, and the output of a looper angle detector 24 attached thereto is given to the arithmetic unit 20. Further, an output signal from a roll tachometer 25 provided in the roll drive system of the stand 21 is also provided to the arithmetic unit 20 .
演算装置２０は、ロール回転計２５の出力信号
を板材１０の長手方向位置情報として、板材の所
定長ごとに画像信号処理装置９の出力を読込んで
W1＋W4＋W14等の幅寸法計算を行う。W1＋W4の
データは画像信号処理装置９からの出力に基いて
得られ、W14は多面鏡４等の光学系の構成、配置
に基いて演算装置２０に予め設定される。水平走
査線Ｍ，Ｄによる幅寸法計算も同時的に行われ、
図示の例におけるＤの場合のように視野内板材の
長さが０であるものについてはその値を無効とし
て、有効な複数の値がある場合にはその平均値を
もつて幅寸法とする。 The arithmetic device 20 reads the output of the image signal processing device 9 for each predetermined length of the plate material, using the output signal of the roll rotation meter 25 as longitudinal position information of the plate material 10.
Perform width dimension calculations such as W 1 + W 4 + W 14 . Data of W 1 +W 4 is obtained based on the output from the image signal processing device 9, and W 14 is preset in the arithmetic device 20 based on the configuration and arrangement of the optical system such as the polygon mirror 4. Width dimension calculation using horizontal scanning lines M and D is also performed at the same time.
If the length of the plate within the field of view is 0, as in the case of D in the illustrated example, that value is invalidated, and if there are a plurality of valid values, the average value thereof is used as the width dimension.
更に演算装置２０は画像信号処理装置９からの
データ読込みに同期してルーパ角度検出計２４か
らもデータを続込み、幅寸法補正計算を行う。即
ち板材１０が水平移動しているものとしての前述
の演算値及びルーパ角を、予め設定してある幾可
学的計算式に与えて真の板幅寸法を得る。演算装
置２０はこの板幅寸法をタンデムミルの圧延制御
用の計算機（図示せず）へ出力する。その他演算
装置２０は画像信号処理装置９からのW1，W4
等、視野内の板材像端縁に関するデータから板材
１０の中心位置の算出も行い、これも前記計算機
へ出力する。中心位置の変動は板の蛇行測定デー
タとなる。 Further, the arithmetic unit 20 also receives data from the looper angle detector 24 in synchronization with data reading from the image signal processing device 9, and performs width dimension correction calculations. That is, the true plate width dimension is obtained by applying the above-mentioned calculated value and looper angle assuming that the plate material 10 is moving horizontally to a preset geometric calculation formula. The calculation device 20 outputs this plate width dimension to a calculator (not shown) for rolling control of the tandem mill. Other calculation devices 20 include W 1 and W 4 from the image signal processing device 9.
The center position of the plate 10 is also calculated from the data regarding the edge of the plate image within the field of view, and this is also output to the computer. The fluctuation of the center position becomes the meandering measurement data of the board.
本発明装置は以上のように構成し、使用される
ものであるから以上のような効果が得られる。即
ち、寸法的な余裕がなく、しかも多塵環境であつ
て幅計設置が不可能であるとされていたタンデム
ミルのスタンド間での板幅寸法の測定が可能にな
る。そして光学系は板材の移動域から十分離れた
位置に配置できるので、その損傷の虞れは皆無で
ある。またルーパの上下による測定誤差も容易に
補正可能である。これにより板幅制御精度は格段
に向上し、板幅余代の減少を図れ、その分歩留が
向上する。そして本発明装置の光源及びフイルタ
は赤色に自家発光する板材の影響を排除するので
測定精度が極めて高い。 Since the apparatus of the present invention is configured and used as described above, the above effects can be obtained. In other words, it becomes possible to measure the width of a board between the stands of a tandem mill, which was previously considered impossible to install a width gauge due to the lack of dimensional margin and the dusty environment. Since the optical system can be placed sufficiently away from the moving area of the plate, there is no risk of damage to the optical system. Furthermore, measurement errors due to the upper and lower positions of the looper can be easily corrected. As a result, the board width control accuracy is greatly improved, the board width margin can be reduced, and the yield is improved accordingly. Since the light source and filter of the device of the present invention eliminate the influence of the plate material that self-emits red light, the measurement accuracy is extremely high.
更に多面鏡により板材端部を選択的に捉えるの
で中央部を含めて撮像する場合のような無駄がな
く、中央部を除いた分だけ分解能が向上すること
になる。また、多面鏡は板材の幅方向位置が相異
する視野領域が得られる複数対の鏡面を有してい
るから、種々の板幅のものを圧延するミルにおい
ても何らの調整をも要することなく各板幅をその
まま高分解能で測定することができる等、本発明
は優れた効果を奏する。 Furthermore, since the ends of the plate material are selectively captured by the polygonal mirror, there is no waste, unlike when imaging including the central part, and the resolution is improved by the amount that the central part is excluded. In addition, since polygon mirrors have multiple pairs of mirror surfaces that provide viewing areas at different positions in the width direction of the plate, no adjustments are required in mills that roll plates of various widths. The present invention has excellent effects such as being able to directly measure each board width with high resolution.
図面は本発明の実施例を示すものであつて、第
１図は本発明装置の模式図、第２図はモニタ画面
の一例を示す説明図、第３図は板材の平面図によ
る視野の説明図、第４図は多面鏡の正面図、第５
図は同じく側面図、第６図はタンデムミルのスタ
ンド間に本発明装置を用いた場合の模式図であ
る。
１……Arレーザ発生器、３……ビーム拡大
器、４……多面鏡、５……干渉フイルタ、６……
テレビカメラ、７……テレビカメラコントロー
ラ、８……モニタ、９……画像信号処理装置、２
０……演算装置。
The drawings show embodiments of the present invention, in which Fig. 1 is a schematic diagram of the apparatus of the present invention, Fig. 2 is an explanatory diagram showing an example of a monitor screen, and Fig. 3 is an explanation of the field of view using a plan view of a plate material. Figure 4 is a front view of the polygon mirror, Figure 5 is a front view of the polygon mirror, Figure 5 is
The same figure is a side view, and FIG. 6 is a schematic diagram when the present invention device is used between the stands of a tandem mill. 1...Ar laser generator, 3...Beam expander, 4...Polygon mirror, 5...Interference filter, 6...
TV camera, 7... TV camera controller, 8... Monitor, 9... Image signal processing device, 2
0... Arithmetic device.
Claims (1)
とも照射するように配され、5400Å以下の波長を
主成分とする光源と、撮像装置と、板材及び撮像
装置間に介装され、撮像装置の視野を、板材の長
手方向の同位置における板材幅方向の両端部を
夫々に含む領域に制限する一対の鏡面を複数対備
え、各対による視野領域を少なくとも板材幅方向
に相異せしめてある多面鏡と、撮像装置への入射
光の波長を限定するフイルタとを備え、前記撮像
装置による撮像画像に基き板材の幅方向に関する
形状、寸法又は挙動を測定する構成としたことを
特徴とする板材の圧延監視装置。1. A light source that is arranged to illuminate at least the widthwise end of the appropriate length portion of the plate material and whose main component is a wavelength of 5400 Å or less, an imaging device, and a light source that is interposed between the board material and the imaging device, and that is interposed between the imaging device and the field of view of the imaging device. A polygon mirror comprising a plurality of pairs of mirror surfaces that limit the angle of view to an area including both ends of the plate in the width direction of the plate at the same position in the longitudinal direction of the plate, and the viewing area of each pair is made to differ at least in the width direction of the plate. and a filter that limits the wavelength of light incident on the imaging device, and is configured to measure the shape, dimension, or behavior of the substrate material in the width direction based on the image captured by the imaging device. Monitoring equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56122744A JPS5822903A (en) | 1981-08-04 | 1981-08-04 | Rolling monitoring device for plate material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56122744A JPS5822903A (en) | 1981-08-04 | 1981-08-04 | Rolling monitoring device for plate material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5822903A JPS5822903A (en) | 1983-02-10 |
| JPS6212445B2 true JPS6212445B2 (en) | 1987-03-18 |
Family
ID=14843519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56122744A Granted JPS5822903A (en) | 1981-08-04 | 1981-08-04 | Rolling monitoring device for plate material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5822903A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI68910C (en) * | 1984-01-17 | 1986-11-25 | Kimmo Koskenohi | FOERFARANDE FOER OPTISK MAETNING AV LAONGSTRAECKTA STYCKEN |
| JPS61264978A (en) * | 1985-05-20 | 1986-11-22 | Matsushita Electric Ind Co Ltd | Video signal storing device |
| JPS63199648A (en) * | 1987-02-16 | 1988-08-18 | Seikosha Co Ltd | Recording method in printer |
| JPH0647387U (en) * | 1992-06-03 | 1994-06-28 | 逸男 岡村 | Thread decomposition prevention net |
| KR20000038765A (en) * | 1998-12-09 | 2000-07-05 | 신현준 | Method for measuring size of tile using scan laser and ccd camera |
| KR100433256B1 (en) * | 1999-12-22 | 2004-05-27 | 주식회사 포스코 | Apparatus for measuring the sectional shape of the rolled bar |
| KR100523099B1 (en) * | 2001-12-20 | 2005-10-19 | 주식회사 포스코 | Method for measuring the sectional shape of the rolled bar |
| KR100957958B1 (en) | 2003-06-20 | 2010-05-17 | 주식회사 포스코 | Error Inspector of Shape Gauge for Hot Rolled Steel Sheet |
| JP2013075326A (en) * | 2011-09-30 | 2013-04-25 | Jfe Steel Corp | Hot rolling equipment |
| CN111618150B (en) * | 2020-07-28 | 2020-10-30 | 吴江市液铸液压件铸造有限公司 | Double-station stamping equipment suitable for hardware |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54107357A (en) * | 1978-02-09 | 1979-08-23 | Hiyuutetsuku Kk | Dimension measuring method of moving substance |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50634U (en) * | 1973-04-10 | 1975-01-07 |
-
1981
- 1981-08-04 JP JP56122744A patent/JPS5822903A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54107357A (en) * | 1978-02-09 | 1979-08-23 | Hiyuutetsuku Kk | Dimension measuring method of moving substance |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5822903A (en) | 1983-02-10 |
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