| 摘要 |
PURPOSE:To make it possible to find abnormality such as the blocking of a cooling material flow path at an early stage, by arranging two or more detectors comprising exciting coils and detecting coils in the same container along the flowing direction of a conductive fluid. CONSTITUTION:A sensor 20 is inserted in every combined fuel body one by one and arranged. In a container of a sensor probe 4, exciting primary coils 2a and 2b are wound around pure iron cores 1a and 1b, which are ferromagnetic material, at the upstream side and the downstream side. Secondary coils 3a, 3b, 3c, and 3d are wound around on both sides of the primary coils in the axial direction. The coils are insulated by ceramic coating. The two or more detectors comprising the exciting coils and the detecting coils are arranged in the same container along the flowing direction of a conductive fluid. Thus abnormality such as the blocking of a cooling material flow path can be found at an early stage. |
