Digitized data from Fig 1 for an intermediate impedance compared with our model-based calculations
| Impedance Model Reference (1) (Ω) | Voltage U (V) from Fig 1 | rVAT (mm) from Fig 1 | Calculated Radius Using Our Model and Equation 2 (mm) | Difference Reference (1) vs Model 1 (mm) | Difference Reference (1) vs Model 10 (mm) |
|---|---|---|---|---|---|
| 0 | 0 | – | |||
| 1003 (medium) | 1.25 | – | 2.22 | ||
| 1.50 | – | 2.42 | |||
| σEC = 0.1 S/ma | 1.75 | 2.62 | 2.60 | +0.02 | ±0 |
| tEC = 0.5 mmb | 2.00 | 2.78 | 2.77 | +0.01 | −0.01 |
| 2.25 | 2.95 | 2.94 | +0.01 | ±0 | |
| 2.50 | 3.10 | 3.09 | +0.01 | −0.01 | |
| 2.75 | 3.24 | 3.23 | +0.01 | −0.01 | |
| 3.00 | 3.38 | 3.37 | +0.01 | −0.01 | |
| 3.25 | 3.52 | 3.51 | +0.01 | −0.01 | |
| 5.00 | – | 4.33 | |||
| 7.50 | – | 5.28 | |||
| 10.0 | – | 6.08 | |||
| Meanc | 0.003 | 0.012 | |||
| SD | 0.074 | 0.112 | |||
| serrC (standard mean error) | ±0.016 | ±0.024 |
Note:—σEC indicates conductivity of encapsulation layer around electrode; thickness of the encapsulation layer around electrode; – no data available.
↵a Conductivity of encapsulation layer around the electrode.
↵b Thickness of the encapsulation layer around electrode.
↵c Based on the calculation for all 3 impedances (741, 1003, and 1244 Ω).