id author title date pages extension mime words sentences flesch summary cache txt work_js7zprgxrbcwllzy23jf3iutay Xiaotong Gao Vibration energy harvesting using piezoelectric unimorph cantilevers with unequal piezoelectric and nonpiezoelectric lengths 2010 3 .pdf application/pdf 2641 285 74 PUC with equal piezoelectric and nonpiezoelectric lengths. induced voltage which was important for charge storage for later use occurred with a PUC that had a nonpiezoelectric-to-piezoelectric length ratio greater than unity, whereas the maximum power Gao et al.7 studied PUCs with unequal piezoelectric and nonpiezoelectric lengths with a concentrated force applied at the tip and found that the PUC Furthermore, the induced voltage increased monotonically with an increasing nonpiezoelectric length. of the PUCs and the base vibration amplitude, Ab, were measured by using a laser displacement meter. the SS length was chosen such that the OC resonant frequency, f OC, of the PUC matched the base vibration frequency, 90 Hz. A mechanical damping ratio of 0.9%, based 2. �a� SC resonant frequency, �b� OC induced voltage, �c� OC tip PUC is connected to a resistor for immediate power consumption, occurred at a unity nonpiezoelectric-topiezoelectric length ratio. ./cache/work_js7zprgxrbcwllzy23jf3iutay.pdf ./txt/work_js7zprgxrbcwllzy23jf3iutay.txt