Shuyun WANG, Panpan LIU, Zefeng REN, Jijun ZHOU, Junwu KAN, Zhonghua ZHANG. Piezoelectric rotational energy harvester with indirect magnetic excitation[J]. Optics and Precision Engineering, 2024, 32(24): 3594
- Optics and Precision Engineering
- Vol. 32, Issue 24, 3594 (2024)
Fig. 1. Structure and working principle of PREH
Fig. 2. Dynamic equivalent model of PREH
Fig. 3. Relationship between amplitude radio and rotating speed under different number radio of excited magnet
Fig. 4. Relationship between amplitude and rotating speed under different excited force
Fig. 5. Relationship between amplitude radio and rotating speed under different system equivalent stiffness
Fig. 6. Test system and prototype
Fig. 7. Relationship between output voltage and rotating speed under different number radio of excited magnet
Fig. 8. Relationship between output voltage and rotating speed under different exciting/excited magnet distance
Fig. 9. Relationship between output voltage and rotating speed under different cavity height
Fig. 10. Relationship between output power and resistance under different rotating speed
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Table 1. Performance comparison of similar rotating piezoelectric harvester
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