Table 2.
Specific parameters of the developed prototype of pulling energy harvester.
| Variables (Units) | Value | |
|---|---|---|
| Mechanical parameters | Volume (mm3) | 50 × 32 × 43.5 |
| Weight (kg) | 0.05 | |
| Length of string (mm) | 180 | |
| Bobbin radius (mm) | 5.65 | |
| Gear ratio | 1:33 | |
| Electromagnetic parameters | Rotor diameter (mm) | 30 |
| Rotor thickness (mm) | 5 | |
| Magnet diameter (mm) | 5 | |
| Magnet thickness (mm) | 3 | |
| Magnet surface field (gauss) | 3850 | |
| Number of rotor magnets | 12 | |
| Stator diameter (mm) | 30 | |
| Stator thickness (mm) | 8 | |
| Outer diameter of solenoid coil in stator (mm) | 1 | |
| Inner diameter of solenoid coil in stator (mm) | 8 | |
| Wire diameter of solenoid coil in stator (mm) | 0.15 | |
| Number of turns in solenoid coil | 380 (each coils) | |
| Number of solenoid coils in stator | 12 | |
| Total resistance of the solenoid coils (Ω) | 36 |