| 摘要 |
A method for inspecting an item and an inspection device has a body (10) with an inspection tool (typically camera and/or ultrasound device and/or X-ray device) mounted on the body for inspecting the item, a traction mechanism (12, 42, 43, 46) arranged to move the body along the item being inspected, and a stabilising mechanism (15) adapted to orient the body so that the inspection tool is presented to the item in a consistent orientation during movement of the inspection device in relation to the item even if the item is non-planar. The inspection tool is typically provided on a moveably inspection head (35), and the stabilising mechanism typically comprises at least two magnetic devices (20), typically rotationally mounted on opposite sides of the body so that each magnet rotates on an axis as the inspection device moves relative to the item being inspected in order to maintain a consistent magnetic attractive force between the device and the item being inspected. |
