주파수 조정에 따른 에너지 하베스팅용 압전 캔틸레버의 특성

김형찬; 송현철; 정대용; 김현재; 윤석진; 주병권; Hyung-Chan Kim; Hyun-Cheol Song; Dae-Yong Jeong; Hyun-Jai Kim; Seok-Jin Yoon; Byeong-Kwon Ju

Korean Journal of Materials Research, Vol.17, No.12, 660-663, December, 2007

DOI10.3740/MRSK.2007.17.12.660 Export Citation

주파수 조정에 따른 에너지 하베스팅용 압전 캔틸레버의 특성

Frequency Tuning of Unimorph Cantilever for Piezoelectric Energy Harvesting

김형찬, 송현철¹, 정대용^{1, †}, 김현재¹, 윤석진¹, 주병권

고려대학교 전자전기공학과
¹한국과학기술연구원 박막재료연구센타

Hyung-Chan Kim, Hyun-Cheol Song¹, Dae-Yong Jeong^{1, †}, Hyun-Jai Kim¹, Seok-Jin Yoon¹, and Byeong-Kwon Ju

School of Electrical Engineering, College of Engineering, Korea Univ., Korea
¹Thin Film Materials Research Center, Korea Institute of Science & Technology, Cheongryang, Seoul 130-650, Korea

E-mail:

Piezoelectric energy harvesting from our surrounding vibration has been studied for driving the wireless sensor node. To change the vibration energy into the electric-energy efficiently, the natural frequency of cantilever needs to be adjusted to that of a vibration source. When adding 6.80g mass on the end of the fabricated cantilever, a natural frequency shifts from 136 Hz into 49.5 Hz. In addition, electro-mechanical coupling factor increased from 10.20% to 11.90% and resulted in the 1.18 times increase of maximum output power.

Keywords:Energy harvesting;Piezoelectric;Frequency tuning

[References]

Rabaey JM, Ammer MJ, Da Silva Jr JL, Patel D, Roundy S, Comput., 33(7), 42 (2000)
Smalser P, U.S. Patent, 5703474 (1997). (1997)
Roundy S, Wright PK, Rabaey JM, Energy Scavenging for Wireless Sensor Networks with special Focus on Vibrations, Kluwer Academic Pub., Norwell (2004). (2004)
Ren K, Liu Y, Geng X, Hofmann HF, Zhang Q, IEEE Trans. Ultrason. Ferroelect. Freq. Contr., 53(3), 631 (2006)
Kim HW, Batra A, Priya S, Uchino K, Markley D, Newnham RE, Hofmann HF, Jpn. J. Appl. Phys., 43(9), 6178 (2004)
Ottman GK, Hofmann HF, Lesieutre GA, IEEE Trans. Power Electron., 18(2), 696 (2003)
Uchino K, Giniewicz JR, Micromechatronics, Marcel Dekker, Inc., New York, (2003). (2003)
Kim HC, Jeong DY, Yoon SJ, Kim HJ, Korean J. Mater. Res., 17(2), 121 (2007)
Roundy S, Wright PK, Smart Mater. Struct., 13, 1131 (2004)
Roundy S, Leland ES, Baker J, Carleton E, Reilly E, Lai E, Otis B, Rabaey JM, Wright PK, Sundararajan V, IEEE Pervasive Computing, 1, 28 (2005)
Fang HB, Liu JQ, Xu ZY, Dong L, Chen D, Cai BC, CHIN. PHYS. LETT., 23(3), 732 (2006)
Blevins RD, Formulas for natural frequency and more shape Krieger publishing company, Malabar, Florida (2001). (2001)
Cheng ZY, Xu TB, Zhang Q, Meyer Jr R, Van Tol D, Hughes J, IEEE Trans. Ultrason. Ferroelect. Freq. Contr., 49(9), 1312 (2002)
Roundy S, Energy Scavenging for Wireless Sensor Nodes with a Focus on Vibration to Electricity Conversion, Ph.D. Dissertation, The University of California, Berkeley (2003). (2003)
Park CH, J. Sound and Vibration, 268, 115 (2003)
Liu Y, Ren KL, Hofmann H, Zhang FQ, IEEE Trans. Ultrason. Ferroelect. Freq. Contr., 52(12), 2411 (2005)

[1] Rabaey JM, Ammer MJ, Da Silva Jr JL, Patel D, Roundy S, Comput., 33(7), 42 (2000)

[2] Smalser P, U.S. Patent, 5703474 (1997). (1997)

[3] Roundy S, Wright PK, Rabaey JM, Energy Scavenging for Wireless Sensor Networks with special Focus on Vibrations, Kluwer Academic Pub., Norwell (2004). (2004)

[4] Ren K, Liu Y, Geng X, Hofmann HF, Zhang Q, IEEE Trans. Ultrason. Ferroelect. Freq. Contr., 53(3), 631 (2006)

[5] Kim HW, Batra A, Priya S, Uchino K, Markley D, Newnham RE, Hofmann HF, Jpn. J. Appl. Phys., 43(9), 6178 (2004)

[6] Ottman GK, Hofmann HF, Lesieutre GA, IEEE Trans. Power Electron., 18(2), 696 (2003)

[7] Uchino K, Giniewicz JR, Micromechatronics, Marcel Dekker, Inc., New York, (2003). (2003)

[8] Kim HC, Jeong DY, Yoon SJ, Kim HJ, Korean J. Mater. Res., 17(2), 121 (2007)

[9] Roundy S, Wright PK, Smart Mater. Struct., 13, 1131 (2004)

[10] Roundy S, Leland ES, Baker J, Carleton E, Reilly E, Lai E, Otis B, Rabaey JM, Wright PK, Sundararajan V, IEEE Pervasive Computing, 1, 28 (2005)

[11] Fang HB, Liu JQ, Xu ZY, Dong L, Chen D, Cai BC, CHIN. PHYS. LETT., 23(3), 732 (2006)

[12] Blevins RD, Formulas for natural frequency and more shape Krieger publishing company, Malabar, Florida (2001). (2001)

[13] Cheng ZY, Xu TB, Zhang Q, Meyer Jr R, Van Tol D, Hughes J, IEEE Trans. Ultrason. Ferroelect. Freq. Contr., 49(9), 1312 (2002)

[14] Roundy S, Energy Scavenging for Wireless Sensor Nodes with a Focus on Vibration to Electricity Conversion, Ph.D. Dissertation, The University of California, Berkeley (2003). (2003)

[15] Park CH, J. Sound and Vibration, 268, 115 (2003)

[16] Liu Y, Ren KL, Hofmann H, Zhang FQ, IEEE Trans. Ultrason. Ferroelect. Freq. Contr., 52(12), 2411 (2005)