Table 1.

Parameters of individual harvesters used in experiments.

Parameter	Symbol	Value
Total weight	-	3.9 kg
Total dimensions	-	600 × 160 × 90 mm3
Moving mass	$m$	0.8 kg
Resonance frequency	$\mathsf{\Omega }$	12 Hz
Mechanical quality factor	$Q_M$	150
Coil dimensions	-	210 × 25 × 3 mm3
Coil wire diameter	-	0.15 mm
Coil turns	$N$	300
Coil resistance	$R_C$	150 Ω
FeNdB magnetic circuit dimensions	-	Two pairs, 3 × 10 × 180 mm3
Air gap	-	6 mm
Average magnetic flux density	$B$	0.3 T