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�������պ����ѧѧ�� 2007, Vol. 33 Issue (12) :1432-1435    DOI:
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����1, ����Ƽ1, �ܷ�1, ��ά��2*
1. �������պ����ѧ �Զ�����ѧ���������ѧԺ, ���� 100083;
2. �������ش�Դ�Ƽ��������ι�˾, ���� 100015
Energy transmission characteristic of PLZT bimorph
Liang Lei1, Wang Shaoping1, Cao Feng1, Deng Weiti2*
1. School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;
2. Beijing HighTech-Trans Technology Company Limited, Beijing 100015, China

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Abstract�� The mechanism of the photostrictive effect of lanthanum-modified lead zirconate titanate (PLZT) ceramics was researched. The theoretical analysis showed that photostriction was the superposition of photovoltaic and converse piezoelectric effects. The maximal deflexion and drive force of PLZT bimorph driver under ultraviolet illumination were attained from material dynamics analysis. PLZT bimorph deflexed to the maxima under irradiation when there was no mechanical load, whereas bimorph did not do work; part of the incident energy was wasted, and the other converted into electrical and mechanical energy and stored in the bimorph driver. The magnitude of work done by bimorph driver related to mechanical load. The exporting mechanical energy reached maximum when the load was half of the maximal drive force. The research can be applied to structural design for optical driver, making the whole system get maximal energy output.
Keywords�� optical driver   energy transmission   lanthanum-modified lead zirconate titanate (PLZT)   bimorph     
Received 2006-12-13;
About author: �� ��(1979-),Ů,ɽ��������,��ʿ��,lianglei@asee.buaa.edu.cn.
����,����Ƽ,�ܷ�,��ά��.PLZT�մ�˫��Ƭ�������������Է���[J]  �������պ����ѧѧ��, 2007,V33(12): 1432-1435
Liang Lei, Wang Shaoping, Cao Feng, Deng Weiti.Energy transmission characteristic of PLZT bimorph[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2007,V33(12): 1432-1435
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