MEASUREMENT METHOD OF NUCLEAR REACTOR CONCRETE CONTAINMENT STRUCTURE USING OPTICAL FIBER SENSOR

摘要

A method for measuring nuclear containment structure is provided to measure displacement of nuclear containment structure and enable simple and effective measurement. A nuclear containment structure comprises a cylindrical main body(100), ceiling portion of dome type, and opening. The position and main body is set using a displacement measuring unit. A standard position in measuring displacement is set at inner area of main body. An optical fiber sensor is installed between displacement measurement position and standard position. The displacement of main body and ceiling is measured by optical fiber sensor.