| 摘要 |
A method for capturing an image of a moving object in a rotary system, for example, an image of a rotating blade in a gas turbine, uses an endoscope 16 to form an image I of a moving object 14. One-dimensional line images are captured with a line scan image sensor 24 which is oriented to lie orthogonal to the direction of movement of the image of the moving object past the image sensor. Successive line images are combined to form a composite two-dimensional image of the moving object. A second image may be detected using a second one dimensional image sensor (26, figure 3) oriented orthogonal, with respect to the direction of movement of the image, to the first line scan image sensor. The second image may be used to compensate for variations in speed of the moving object. |
