| 摘要 |
<p>PURPOSE:To find out the thickness of a sheet-shaped component without measurement error by measuring the distance to the surface of the sheet-shaped component on a roll, also measuring the distance to the roll surface and finding the difference between them. CONSTITUTION:A receptor 12 of a transmitting laser type sensor 4 outputs a signal representing the power of the laser beam emitted from a projector 11 proportioned to the laser beam amount passing a slide 12a, and the signal is proportioned to the distance (s) to a knife edge 13 and the surface of a sheet A. An eddy-current type sensor 5 is installed on an installing basket 3 on the position just next to the knife edge 13, and at the time when the sensor is moving, the relative positions of the eddy-current type sensor 5 and the knife edge 13 are not varied. The distance D between the knife edge 13 and the end face of the eddy-current sensor 5 is constant at all times.</p> |
