| 摘要 |
A method of inspecting a component situated within an engine, the component such as a turbine blade 10 comprising a wall having a first side and a second side, comprises inserting a fluid supply tube into the engine, placing an outlet of the fluid supply tube adjacent to the first side of the wall in a region where a hole 20 extending through the wall from the first side to the second side is nominally located, delivering a test fluid such as steam through the fluid supply tube to induce flow of the test fluid through the hole 20, deploying a sensor panel 34 on collapsible frame 28 adjacent the second side of the component wall in the path of test fluid issuing from the hole, the sensor panel being sensitive to the impingement of the test fluid, and assessing the condition of the hole in dependence on the response of the sensor panel at the location corresponding to the hole. |
