PLANAR SHAPE MEASURING DEVICE

• Main Authors: IBA KOHEI, SUGIYAMA MASAYUKI
• Format: Patent
• Language: English; Japanese
• Published: 19.09.2019
• Subjects: AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL; MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PHYSICS; PUNCHING METAL; ROLLING OF METAL; TESTING; TRANSPORTING

To provide a planar shape measuring device with which it is possible to measure the planar shape of a flat plate of a rolling line with high accuracy.SOLUTION: An embodiment comprises: an imager for imaging a two-dimensional image of a flat plate in a first readout range; a parameter commander for setting, on the basis of a table in which a correspondence relation between a parameter for determining the light receiving characteristic of the imager and the temperature of the flat plate is set, the parameter for temperature information acquired in advance, and commanding to the imager; a readout range setter for switching between the first readout range and a second readout range that is a portion of the first readout range; a plate presence detection-luminance level computing element for detecting the position of the flat plane by an image in the second readout range and computing the adjustment amount of the parameter on the basis of the luminance level in the second readout range and a prescribed target luminance; and a profile value computing device. The readout range is switched to the first readout range by the readout range setter after the flat plate passed through the second readout range.SELECTED DRAWING: Figure 1 【課題】圧延ラインの平板の平面形状を精度よく測定できる平面形状測定装置を提供する。【解決手段】実施形態は、平板の２次元画像を第１読出範囲で撮像する撮像器と、前記撮像器の受光特性を決定するパラメータと前記平板の温度との対応関係を設定したテーブルにもとづいてあらかじめ取得された温度情報に対する前記パラメータを設定し前記撮像器に指令するパラメータ指令器と、前記第１読出範囲と前記第１読出範囲の一部の第２読出範囲とを切り換える読出範囲設定器と、前記第２読出範囲の画像によって前記平板の位置を検知し、前記第２読出範囲の輝度レベルおよび所定の目標輝度にもとづいて、前記パラメータの調整量を演算する板有無検知・輝度レベル演算器と、プロフィール値演算装置と、を備える。前記平板が前記第２読出範囲を通過した後に、前記読出範囲設定器によって、前記第１読出範囲に切り換える。【選択図】図１