| 摘要 |
PURPOSE:To make it possible to measure the extending deformation of an object to be measured by grasping the extending behavior of the object to be measured, by the reduction in the electric resistance value between the connection end parts of an extensible conductive sheet generated by the extending deformation of said sheet having connection parts at least at both ends thereof. CONSTITUTION:An extensible conductive sheet 11 is obtained, for example, by mixing 15vol% of conductive Ni-plated mica pieces in polyurethane. A sensor element 1 is constituted by connecting pressure bondable metal terminals 12, 12' to both ends of the sheet 11 and connecting lead wires 13, 13' led to a detec tion circuit to the terminals 12, 12'. A sensor element 2 is constituted by connecting metal snap buttons 22, 22' to both ends of s sheet 21 as connection terminal parts and pressure-sensitive adhesives 34, 34' are applied to the single surfaces of the connection terminal parts 32, 32' of a sensor element 3. The change in the electric resistance value generated when extending deformation was applied to each element is detected, for example, by a tester and the extending behavior of an object performing a corresponding amount of extending deformation is determined.
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