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    • 2. 发明公开
    • 강판의 내부 결함 검출 장치 및 방법
    • 检测钢板内部缺陷的装置及方法
    • KR1020140084608A
    • 2014-07-07
    • KR1020120154251
    • 2012-12-27
    • 주식회사 포스코
    • 이주승최상우최세호윤종필배호문
    • G01N27/82G01N33/20B21B38/00
    • G01N27/82B21B38/00G01N27/83
    • Disclosed is an apparatus and method for detecting an internal defect of a steel plate. The apparatus for detecting an internal defect of a steel plate comprises: a total defect detecting part detecting the total defect including surface defects on the surface of the steel plate and internal defects on the inside of the steel plate, according to the measured strength of magnetic flux leaking from the magnetic flux generated in the moving direction of the steel plate; a surface defect detecting part detecting the surface defect with respect to a given detection area on which the total defect detected by the total defect detecting part is included, according to the measured strength of magnetic flux leaking from the magnetic flux generated in the thickness direction of the steel plate; and a data processing part detecting only the internal defect existing in the detection area with respect to the detection area by excluding the surface defect detected by the surface defect detecting part from the total defect detected by the total defect detecting part. Accordingly, only the internal defect of the steel plate can be detected.
    • 公开了一种用于检测钢板内部缺陷的装置和方法。 用于检测钢板内部缺陷的装置包括:全面缺陷检测部分,根据测得的磁场强度,检测包括钢板表面上的表面缺陷和钢板内部缺陷的总体缺陷 从钢板移动方向产生的磁通量漏出的磁通; 根据从厚度方向产生的磁通泄漏的磁通量的测量强度,检测表面缺陷相对于其中包含由全缺陷检测部检测到的全部缺陷的给定检测区域的表面缺陷检测部分 钢板; 以及数据处理部,通过从由全面缺陷检测部检测出的全部缺陷中排除由表面缺陷检测部检测出的表面缺陷,仅检测与检测区域相对的检测区域中存在的内部缺陷。 因此,只能检测钢板的内部缺陷。
    • 4. 发明公开
    • 후판의 주기성 결함 검출 장치
    • 检测厚钢板周期性缺陷的装置
    • KR1020140006651A
    • 2014-01-16
    • KR1020120074128
    • 2012-07-06
    • 주식회사 포스코
    • 윤종필박창현윤성욱배호문최세호
    • G01N21/88G01B11/30
    • G01N21/88G01B11/14G01B11/26H01L21/67288
    • A device for detecting the periodic defect of a thick plate is provided. The device for detecting the periodic defect of a thick plate comprises: a garbor filter module for filtering the surface image of the thick plate using a garbor filter; a binarization module for binarizing the filtered surface image of the thick plate; and a periodic defect detection module for detecting blobs, which are separated at regular intervals in the longitudinal direction of the thick plate among multiple blobs contained in the binarized surface image of the thick plate, as the periodic defect. The device for detecting the periodic defect of a thick plate according to the present invention can detect the periodic defect of a thick plate and especially hot levelling marks. [Reference numerals] (210) Garbor filter module; (220) Binarization module; (230) Image division module; (240) Periodic defect detection module
    • 提供一种用于检测厚板的周期性缺陷的装置。 用于检测厚板的周期性缺陷的装置包括:用于使用花边过滤器对厚板的表面图像进行过滤的花岗岩过滤器模块; 二值化模块,用于二值化厚板的过滤表面图像; 以及周期性缺陷检测模块,用于检测在厚板的二值化表面图像中包含的多个斑块之间在厚板的纵向上以规则间隔分隔的斑点作为周期性缺陷。 根据本发明的用于检测厚板的周期性缺陷的装置可以检测厚板的周期性缺陷,特别是热流平痕迹。 (附图标记)(210)加法尔滤芯模块; (220)二元化模块; (230)图像分割模块; (240)周期性缺陷检测模块
    • 7. 发明公开
    • 롤 표면의 이상유무 검출장치 및 검출방법
    • 检测滚筒表面异常的装置和方法
    • KR1020110029884A
    • 2011-03-23
    • KR1020090087737
    • 2009-09-16
    • 주식회사 포스코
    • 전남수최세호임충수김신영이충기
    • G01N21/89G01B11/30B21B38/02
    • PURPOSE: A device and a method for detecting the drawback from the surface of a roll are provided to recognize the accurate replacing timing of a roll by rapidly detecting the drawback from the surface of the roll. CONSTITUTION: A device for detecting the drawback from the surface of a roll comprises a probe(100), a detecting unit(200) and an air knife. The probe obtains drawback or foreign-material detecting information by imaging the reflected light from the surface of the roll. The detecting unit receives the foreign-material detecting information from the probe and detects the drawback or foreign materials from the roll surface. The air knife eliminates the foreign materials from the roll surface.
    • 目的:提供一种用于检测辊表面的缺陷的装置和方法,以通过快速检测辊的表面的缺点来识别辊的精确更换定时。 构成:用于检测来自辊表面的缺点的装置包括探针(100),检测单元(200)和气刀。 探针通过对来自辊表面的反射光进行成像而获得缺陷或异物检测信息。 检测单元从探头接收异物检测信息,并检测来自辊表面的缺点或异物。 气刀消除了辊表面的异物。
    • 8. 发明公开
    • 금속환경을 위한 RFID 태그 안테나 및 이를 이용한RFID 태그
    • 用于金属环境的RFID标签天线和使用该标签的RFID标签
    • KR1020080010953A
    • 2008-01-31
    • KR1020060071678
    • 2006-07-28
    • 주식회사 포스코
    • 최세호김두수이동현박노환강명구김용수박위상
    • H01Q9/04H01Q1/38
    • An RFID(Radio Frequency IDentification) tag antenna for a metallic environment and an RFID tag using the same are provided to obtain a stable recognition rate at various positions of the metallic environment such as a wire coil. An RFID tag antenna(100) for a metallic environment includes a ground plate(110), a radiation plate(120), and a short circuit unit(130). The ground plate is a rectangle with a predetermined area. The radiation plate is arranged on a top part of the ground plate to be spaced apart from the ground plate in parallel with a predetermined interval. A plurality of rectangular patches with different sizes are continuously connected to form the radiation plate. The size of the connected rectangular patches is increased or decreased sequentially. The short circuit unit short-circuits the ground plate and the radiation plate each other.
    • 提供了一种用于金属环境的RFID(射频识别)标签天线和使用该标签的RFID标签,以在诸如线圈等金属环境的各个位置处获得稳定的识别率。 用于金属环境的RFID标签天线(100)包括接地板(110),辐射板(120)和短路单元(130)。 接地板是具有预定面积的矩形。 辐射板布置在接地板的顶部,与预定间隔平行地与接地板隔开。 连续地连接多个具有不同尺寸的矩形贴片以形成辐射板。 连接的矩形贴片的尺寸依次增加或减少。 短路单元使接地板和辐射板相互短路。
    • 9. 发明公开
    • 레이저 광원과 APD 센서를 이용한 핀홀 검출기
    • 用于通过使用激光光源和APD传感器检测针孔的装置
    • KR1020040057729A
    • 2004-07-02
    • KR1020020084521
    • 2002-12-26
    • 주식회사 포스코
    • 배호문최세호곽영우박욱재
    • G01N21/88
    • PURPOSE: A pinhole detector is provided to reduce the effect from a peripheral light source and to have the characteristics of a PMT(Photomultiplier) by using an APD(Advanced Photo Diode) sensor. CONSTITUTION: A laser light source generates line beams of single wavelength. A first cylindrical lens(10) converts the line beams of the laser light source to parallel light. A second cylindrical lens(13) collects the parallel light. An APD sensor(16) is arranged in a focused position of the second cylindrical lens. A signal processor decides the existence of a pinhole by receiving an output of the APD sensor. Thereby, the quality of a steel plate is improved by examining the pinhole of the steel plate exactly and quickly.
    • 目的:提供针孔检测器,通过使用APD(高级光电二极管)传感器来减少外围光源的影响,并具有PMT(光电倍增管)的特性。 构成:激光光源产生单波长的线束。 第一柱面透镜(10)将激光源的线束转换为平行光。 第二柱面透镜(13)收集平行光。 APD传感器(16)布置在第二柱面透镜的聚焦位置。 信号处理器通过接收APD传感器的输出来确定针孔的存在。 因此,通过快速检查钢板的针孔来提高钢板的质量。
    • 10. 发明公开
    • 표면 흠 탐상장치 및 방법
    • 用于搜索表面上的划线的装置和方法
    • KR1020040057727A
    • 2004-07-02
    • KR1020020084519
    • 2002-12-26
    • 주식회사 포스코
    • 최세호손붕호
    • G01N21/896
    • PURPOSE: A surface scratch search device and a method thereof are provided to exactly detect scratches on a tested object through a non-contact method though the concentration of fluorescent magnetic particles and the strength of a magnetic field to the tested object are changed. CONSTITUTION: A current driver(12) feeds DC(Direct Current) lengthwise a tested object(11). A magnetic particle injector(13) spreads fluorescent magnetic particles to be mixed with water onto the surface of the tested object. A magnetic particle concentration adjustor(14) maintains the concentration of the spread fluorescent magnetic particles regularly. A lighting device(15) irradiates ultraviolet rays to a photographed area on the surface of the tested object. A color CCD(Charge Coupled Device) camera(15) obtains color images of the photographed area. An image processing unit(17) detects scratches on the tested objects from the color images by removing effects through an external light from the obtained color images and setting a critical value according to the characteristics of the color images. Thereby, the detected degree of the scratches is improved.
    • 目的:提供表面划痕搜索装置及其方法,以便通过非接触方法精确地检测被测物体上的划痕,尽管荧光磁性颗粒的浓度和对被测物体的磁场强度发生变化。 构成:当前驱动器(12)沿纵向馈送测试对象(11)的直流(直流)。 磁性粒子注入器(13)将荧光磁性粒子与水混合在被测物体的表面上。 磁性粒子浓度调节器(14)定期维持扩散的荧光磁性颗粒的浓度。 照明装置(15)将紫外线照射到被测试物体的表面上的拍摄区域。 彩色CCD(电荷耦合器件)相机(15)获得拍摄区域的彩色图像。 图像处理单元(17)通过从所获得的彩色图像中除去通过外部光的效果并根据彩色图像的特性来设定临界值,从彩色图像中检测测试对象上的划痕。 因此,检测到的划痕程度提高。