Sensor device and stretchable structure
US10209055B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2015 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Mar 2, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.