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- Title
A Two-Ply Polymer-Based Flexible Tactile Sensor Sheet Using Electric Capacitance.
- Authors
Shijie Guo; Takahisa Shiraoka; Seisho Inada; Toshiharu Mukai
- Abstract
Traditional capacitive tactile sensor sheets usually have a three-layered structure, with a dielectric layer sandwiched by two electrode layers. Each electrode layer has a number of parallel ribbon-like electrodes. The electrodes on the two electrode layers are oriented orthogonally and each crossing point of the two perpendicular electrode arrays makes up a capacitive sensor cell on the sheet. It is well known that compatibility between measuring precision and resolution is difficult, since decreasing the width of the electrodes is required to obtain a high resolution, however, this may lead to reduction of the area of the sensor cells, and as a result, lead to a low Signal/Noise (S/N) ratio. To overcome this problem, a new multilayered structure and related calculation procedure are proposed. This new structure stacks two or more sensor sheets with shifts in position. Both a high precision and a high resolution can be obtained by combining the signals of the stacked sensor sheets. Trial production was made and the effect was confirmed.
- Subjects
TACTILE sensors; ELECTRIC capacity; SIGNAL-to-noise ratio; DIELECTRIC films; POLYMER films
- Publication
Sensors (14248220), 2014, Vol 14, Issue 2, p2225
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s140202225