Choice of Materials

A project log for SERPENTINE

Hand Gesture Recognition using Self-Powered Stretchable Squeezable Force Sensor based on Triboelectric Nanogenerators Principle

fereshtehfereshteh 10/22/2018 at 03:350 Comments

Different materials with different electrical and mechanical properties have been tested in this experiment. 

Initial Prototypes - fabrication of different sensors with different physical properties like:  1. Thickness, 2. Length, 3. Winding Density, 4. Strain Values, 5. Different materials for dielectric and electrodes and 6. Different modes of TENGs like, single electrode, contact-separation and lateral sliding modes.

The followings are the final chosen materials. The reason of choosing each is described in Design Parameters section.

Sensor structure and choice of different materials are optimized to maximize the triboelectric effect in Serpentine.

The unique form factor of serpentine allows it act as different types of force sensor simultaneously like touch, pressure, strain and torque sensor. Depend on a broad range of applications from wearable to furniture, medical devices and human health monitoring use cases, the Serpentine’s form factor is adjustable in length, thickness and stiffness. It is a great contribution to adjust such physical properties and collect wide range of electrical outputs.