| 摘要 |
<p>PURPOSE:To provide a detection device which can detect the support metal fitting of a trolley wire in a running operation at a maximum speed of 350km per hour or lower. CONSTITUTION:This detection device is provided with two sets of detection optical systems 7A, 7B which are composed of light-projecting systems 71a, 71b and light-receiving systems 72a, 72b which are arranged in the X-direction at a proper interval YD a both sides of the right and left central line C on the roof of a detecting and measuring vehicle 5 and with a signal processing part 8 which is mounted on the detecting and measuring vehicle 5. Laser beams LT whose diameter is slender and whose intensity is high are projected respectively to vertically upper parts from the individual light-projecting systems 71a, 71b. The individual light-receiving systems 72a, 72b are set in such a way that the light-receiving optical axes form proper inclination angles theta to obliquely upper parts, they are set to the central direction in the height change range H of a support metal fitting 22, and they are installed perpendicularly to interference filters, image formation lenses and the light-receiving optical systems. When the detecting and measuring vehicle is run, beams of reflected light LR of the laser beams by the support metal fitting 22 or a trolley wire 1 are received by the individual light-receiving systems 72a, 72b, and their images are formed sequentially on a plurality of PD elements (e) by the image formation lenses.</p> |
