摘要 |
<p>A caliper sensor of the contacting-type for measuring the thickness of travelling sheets (12) of thin materials having coated surfaces. The caliper sensor has first and second skid members (26, 38) that ride on opposite surfaces of a travelling sheet (12). The riding surface of each skid member includes a planar circular section for parallel contact with the sheet and a tapered section which peripherally surrounds the circular section and which tapers away from the plane of the sheet at an angle ranging from about 1 DEG to about 5 DEG . <IMAGE></p> |