Sensor device and stretchable structure
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United States of America Patent
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Feb 19, 2019
Grant Date -
Mar 16, 2017
app pub date -
Mar 2, 2015
filing date -
Mar 3, 2014
priority date (Note) -
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Abstract
A sensor device includes a sensor element, a converter, and an output unit. The sensor element includes a sheet-like dielectric layer including an elastomer composition and a top electrode layer and a bottom electrode layer each including an electroconductive composition containing carbon nanotubes. The top and the bottom electrode layers are formed on a top surface and a bottom surface of the dielectric layer, respectively, and are at least partially opposed to each other across the dielectric layer. The at least partially opposed portions of the top and the bottom electrode layers constitute a detection portion, and the dielectric layer reversibly deforms to change an area of a main surface of the dielectric layer. The converter electrically is connected to the sensor element and converts capacitance at the detection portion that varies in accordance with the deformation of the dielectric layer to electric characteristics.
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