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Wireless sensor nodes deployed at remote and inaccessible locations need long lifetime power sources to prevent cost prohibitive periodic replacement. In this work, we present a radioisotope 63Ni energy converter using radioisotope-powered electrostatic vibration-to-electricity conversion. Free damped vibration happening in a suspended parallel plate structure with a mass enables a variable capacitance, which can be used to realize the generation of electricity energy by an external circuit. The MATLAB/Simulink is used to simulate the vibration and output power, and the Ansys is used to optimize the structure design. The results show that the optimized design structure with a first-order natural frequency of 500 Hz, a plate gap of 75 μm, and an external resistance of 90 kΩ can generate an average output power of 0.416 μW and conversion efficiency of 8.25%.
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Keywords:
- energy scavenging /
- isotopes 63Ni /
- electrostatic converter /
- vibration energy
[1] Fan K Q, Jia J Y, Zhu Y M, Zhang X Y 2011 Chin. Phys. B 20 043401
[2] He C, Fu X, Xu F, Wang J, Zhu K, Du C, Liu Y 2012 Chin. Phys. B 21 054207
[3] Lin H B, Cao M S, Yuan J, Wang D W, Zhao Q L, Wang F C 2008 Chin. Phys. B 17 4323
[4] Fan K Q, Ming Z F, Xu C H, Chao F B 2013 Chin. Phys. B 22 104502
[5] Yao S L, Song Z J, Wang X, San H S 2012 Appl. Radiat. Isot. 70 2388
[6] Duggirala R, Li H, Lal A 2009 Appl. Phys. Lett. 92 154104
[7] Cheng Z J, San H S, Chen X Y, Liu B, Feng Z H 2011 Chin. Phys. Lett. 28 078401
[8] Guo H, Yang H, Zhang Y 2007 20th IEEE International Conf. on Micro Electro Mechanical Systems (MEMS 2007) Kobe Japan, April 2–6, 2007 p867
[9] Gao H, Luo S Z, Zhang H M, Wang H Y 2012 Acta Phys. Sin. 61 176101 (in Chinese) [高晖, 罗顺忠, 张华明, 王和义 2012 物理学报 61 176101]
[10] Lal A, Duggirala R, Hui L 2005 IEEE Pervas. Comput. 4 53
[11] Vijay D P, Desu S B 1993 J. Electrochem. Soc. 140 2640
[12] Roundy S, Wright P K, Rabaey J M 2003 Energy Scavenging for Wireless Sensor Networks (Boston M A: Kluwer Academic Publishers) p341
[13] Li Y F, Cheng Z J, San H S, Duo Y X 2010 5th IEEE International Conference on Nano/Micro Engineered and Molecular Systems Xiamen China, January 20–23, 2010 p78
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[1] Fan K Q, Jia J Y, Zhu Y M, Zhang X Y 2011 Chin. Phys. B 20 043401
[2] He C, Fu X, Xu F, Wang J, Zhu K, Du C, Liu Y 2012 Chin. Phys. B 21 054207
[3] Lin H B, Cao M S, Yuan J, Wang D W, Zhao Q L, Wang F C 2008 Chin. Phys. B 17 4323
[4] Fan K Q, Ming Z F, Xu C H, Chao F B 2013 Chin. Phys. B 22 104502
[5] Yao S L, Song Z J, Wang X, San H S 2012 Appl. Radiat. Isot. 70 2388
[6] Duggirala R, Li H, Lal A 2009 Appl. Phys. Lett. 92 154104
[7] Cheng Z J, San H S, Chen X Y, Liu B, Feng Z H 2011 Chin. Phys. Lett. 28 078401
[8] Guo H, Yang H, Zhang Y 2007 20th IEEE International Conf. on Micro Electro Mechanical Systems (MEMS 2007) Kobe Japan, April 2–6, 2007 p867
[9] Gao H, Luo S Z, Zhang H M, Wang H Y 2012 Acta Phys. Sin. 61 176101 (in Chinese) [高晖, 罗顺忠, 张华明, 王和义 2012 物理学报 61 176101]
[10] Lal A, Duggirala R, Hui L 2005 IEEE Pervas. Comput. 4 53
[11] Vijay D P, Desu S B 1993 J. Electrochem. Soc. 140 2640
[12] Roundy S, Wright P K, Rabaey J M 2003 Energy Scavenging for Wireless Sensor Networks (Boston M A: Kluwer Academic Publishers) p341
[13] Li Y F, Cheng Z J, San H S, Duo Y X 2010 5th IEEE International Conference on Nano/Micro Engineered and Molecular Systems Xiamen China, January 20–23, 2010 p78
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