| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipeline inspection device capable of integrating pipeline defect signals within a wide range of a heat insulation pipeline in a short time and with high accuracy.SOLUTION: A pipeline inspection device includes an exciting coil 10 configured to impart magnetism to a heat insulation pipeline 1, and a plurality of magnetic sensors 20 arranged around the exciting coil 10. At a position of each magnetic sensor 20, a wide range of magnetic data indicating a magnetic amount and magnetic direction generated by the exciting coil 10 is integrated and detected. By executing arithmetic processing to the magnetic data of an inspected portion detected by the magnetic sensor 20 with a reference data group formed by collecting reference data on the premise of a standard heat insulation pipeline, the detection inspection device separates a coil exciting signal resulting from the exciting coil 10 from a pipeline defect signal, and integrates and detects pipeline defect signals within a wide range of the heat insulation pipeline 1 in a short time and with high accuracy.SELECTED DRAWING: Figure 1 |
