Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Base-case dimensions and material parameters for the 4-electrode probe and 3 skin layers (n=3, m=4)_ (The outer radius of the skin is only used in the numerical solution for verification purposes_)
| Current detection width, w1 | 1 mm | [2] |
| Ceramic width, w2, w4, w6 | 0.15, 0.15, 1.9 mm | [2] |
| Guard width, w3 | 0.3 mm | [2] |
| Secondary inject width, w5 | 0.5 mm | [2] |
| Primary inject width, w7 | 0.5 mm | [2] |
| Outer radius of the probe, R | 4.5 mm | [2] |
| Outer radius of the skin, Rskin | 20 mm | |
| Stratum corneum thickness, h3 | 14 μm | [11] |
| Viable skin thickness, h2 | 1.2 mm | [11] |
| Adipose tissue thickness, h1 | 1.2 mm | [11] |
| Inject voltage, V0 | 0.05 V | [2] |
| Depth setting, α | 0.1 | [2] |
| Electrical permittivity in vacuum, ε0 | 8.85 ×107 Fm-1 | [12] |