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. 2016 Feb 23;16(3):269. doi: 10.3390/s16030269

Figure 1.

Figure 1

The energy harvesting and vibration-signal transmission approaches of the attachable electromagnetic energy harvester driven wireless vibration sensing system to monitor milling-processes and cutter-wear/breakage conditions. The red arrow-line indicates the energy-harvesting flow while the yellow arrow-line indicates the signal-transmission flow.