Table 1.
Piezoresistive sensors design and their characteristics.
| Material, Electrode | Measured Quantity, Contact Area, mm2 |
Evaluated Characteristics | Ref. |
|---|---|---|---|
| Velostat®, copper |
Force (0–3 N), 25 |
Sensitivity, hysteresis, mechanical compression, response time, transverse resolution |
This work |
| Velostat®, - |
Pressure (0–250 kPa), 100 |
Sensitivity, repeatability, time drift, hysteresis, dynamic response, sensitivity threshold |
[37] |
| Velostat®, copper |
Pressure (0–0.27 kPa), 450 |
settling time, dynamic response |
[10] |
| Velostat®, silver-covered polyamide |
Pressure (0–1000 kPa), 100 |
Sensitivity, | [38] |
| Polyurethane film, Aluminum foil | Pressure (0–650 KPa), 4900 |
Sensitivity, cycle test |
[39] |
| Graphene nanoplatelets and carbon nanotubes, PMMA and PVDF, Silver | Pressure (0–100 000 kPa), - |
Sensitivity, | [40] |
| Linqstat, copper |
Force (0–5 N), - |
Resolution | [41] |
| Velostat®, aluminum foil |
Force (0–40 N), 10150 and 2040 |
Replicability, repeatability |
[9] |
| Velostat®, copper |
Force (10–100 N), 219.8 |
Sensitivity, | [42] |
| LDPE, Shieldex NoraDell woven fabric sheets |
Pressure (1–10 kPa), 342 |
Sensitivity, recovery time |
[43] |
| Velostat®, several different materials |
Force (0–20 N), 1000 |
Sensitivity, | [44] |
| Velostat®, Satatex Techniktex P-130 | Force (2–136 N, 2–173 N, and 2–210 N), 56.25 |
Cyclic, time |
[45] |
| Velostat® and EX-STATIC fabric, copper |
Force (0–500 N), 100 |
Sensitivity, time drift |
[46] |
| Polyethylene Terapthalate, silver | Force (0–53 N), - |
Sensitivity, time drift |
[47] |
| Velostat®, - |
Force (0–16 N) - |
Sensitivity, time drift |
[34] |