METHOD OF AUTOMATICALLY INSPECTING LONG OBJECT FOR APPEARANCE DEFECTS, AND ROLL OF LONG OBJECT WITH RECORDING MEDIUM

• Main Authors: OTA KIWAMU, NAKAMURA MAKOTO
• Format: Patent
• Language: English; Japanese
• Published: 18.10.2018
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To provide an automatic appearance defect inspection method which allows for performing accurate, efficient, automatic, and continuous inspection of a long object for various types of detects while the long object is being continuously moved, and to provide a roll of long object which allows for immediately confirming an inspection result and defect locations.SOLUTION: A method of automatically inspecting for appearance defects on a long object comprising an electrically conductive coating layer continuously formed on at least one surface of a porous carbon electrode base material is provided, the method comprising steps of; irradiating a coating layer surface of the long object with inspection light; receiving scattered and reflected light; acquiring and analyzing surface ruggedness information from the received scattered and reflected light; and continuously spooling the long object while recording locations, magnitudes, and types of defects from a result of the analysis onto a recording medium.SELECTED DRAWING: Figure 1 【課題】長尺物の連続移送時において、多種類の外観欠陥を高精度で且つ効率的に自動的に連続検査が可能な外観欠陥の自動検査方法とその検査結果及び欠陥位置を直ちに確定できる長尺物の巻体を提供する。【解決手段】 多孔質炭素電極基材の少なくとも一方の面上に、導電材料からなるコーティング層が連続的に形成された長尺物の外観欠陥自動検査方法であって、前記長尺物のコーティング層の表面に検査光を照射し、散乱反射光を受光し、受光した散乱反射光より表面凹凸の情報を取得・解析し、その結果から欠陥の存在位置、大きさおよびの種類を記録媒体に記録しつつ連続して巻き取ることを含んでなる長尺物の外観欠陥自動検査方法。【選択図】 図１