PIPE INNER FACE DIAGNOSIS METHOD AND INSPECTING POSITION INDICATING SHEET USED FOR IT

摘要

PURPOSE:To facilitate diagnosis of pipe inner face by realizing highly efficient marking work. CONSTITUTION:An inspecting position indicating sheet 12 is wound around a part of a pipe 10 subjected to inner face diagnosis. A pipe inner face diagnosis unit inspects the parts where holes 14, made regularly through the sheet 12, are arranged. The hole 14 in the sheet 12 has such a size as receiving the sensor part of a probe in the pipe inner face diagnosis unit. Multiple holes 14 are made over the entire surface of the sheet 12 at the same pitches in the longitudinal and lateral directions.