| 摘要 |
Device for checking the correct fitting, relative to a surface (4), of a body (2) having a head (3), the device (1) having a frame (5) to be leaned against the surface (4), a truncated cone-shaped convergent mirror (8) fixed to the frame (5) so as to lay with its smaller opening (8a) on the surface (4) surrounding the head (3), a video camera (9) mounted on the frame (5) with the optical lens (9a) facing the mirror (8) so as to acquire an image, reflected by the truncated cone-shaped convergent mirror (8), of the gap (G) between the head (3) and the surface (4); a processing unit (11) to process the image so as to measure the gap (G) under the head along a plurality of scanning lines that are radial with respect to the optical axis (10) of the lens (9a) and to generate an alarm signal based on the comparison between the measured values of the under-head gap (G) and a threshold value; and a warning light (13) controlled as a function of this alarm signal. |
