壓電式軟性觸覺感測器 (Flexible Piezoelectric Tactile Sensor)

IntroductionIn order to enhance the sensitivity of PVDF-based tactile sensor, we introduced the so-called structural electrode to replace the thin-film electrode in the traditional design.We developed the shape recognition also can be achieved as the objective contacted with the 4 by 4 electrodes array.In addition, a novel flexible tactile sensor for sensing the force direction were designed by introducing the concept of structural electrodes on a piezoelectric film (PVDF).
Experiment Device  1. Oscilloscope 2. Function Generator 3. Power Supply 4. Charge Amplifier 5. Spin Coater 6. E-beam Evaporator 7. Vacuum Oven 8. Single-Side Mask Aligner
Research Results
Flexible Piezoelectric Tactile Sensor This study provides an efficient and feasible solution to enhance the sensitivity of? traditional piezoelectric tactile sensor based on introducing structural electrode upon the sensing material.
The process flow				Shape recognition system
Multi-axial Tactile Sensor for recognize direction
This research has proved that utilizes the phase place of the structural electrode with distinguishing the force's direction.
The direction recognition chart
Numerical analysis with structure electrodes
In order to investigate the influences on introducing microstructures, a 3D model was established and analyzed by finite element software (ABAQUS) .
3D FEA Model 　　　　　　The electrical potential  profile　　　　　The size and shape effects
Slippage Detection Sensor
This research has proved that utilizes the phase place of the structural electrode with really can? monitor slippage phenomenon and distinguish the force's direction.