A New Method to Perform Direct Efficiency Measurement and Power Flow Analysis in Vibration Energy Harvesters.

Sensors (Basel) · 2021 · PMC8036391 · PMID 33808222

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a decreasing trendno p-value reported

Moreover, all types of efficiency exhibited a decreasing trend when the vibration amplitude rose.

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almost insignificantno p-value reported

Moreover, in PEHs, the overall power dissipated into heat is so small that it produces only an almost insignificant change in the harvester’s surface temperature, for instance, in the PZT PEH at 1 g rms the warming of the PEH caused by the thermal losses (14.93 mW; Table 1) is less than 0.02 K.

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