Energy Harvester Performance Test

EXPERIMENTAL SETUP

The tested energy harvester module is housed in a robust PA enclosure with dimesnions of 58 mm × 49 mm × 44 mm. An Adafruit Feather board with an integrated OLED display is installed in the lid.

Performance Test

For the performance test, the module was mounted on a vibration table and mechanically subjected to oscillations. The electrical voltage generated during the process was transmitted via Bluetooth to a PC in real time and visualized there.

Measurement Results

 During the experiment, the capacitor in the EH300 Energy Regulator Module was charged to a voltage of 3 V. With a capacitance of 1 mF (millifarad), the stored energy is calculated as:

E = ½ C U² = ½ 0.001 F (3 V)² = 4.5 mJ


The charging time was 160 seconds, resulting in an average electrical power of:


P = E / t = 4.5 mJ / 160 s = 28 µW


Conclusion

The test demonstrates that under the given conditions, an average power of approximately 28 µW could be generated. This confirms the suitability of the module for applications in self-powered sensor systems, especially in environments with continuous mechanical vibration.