Self-reciprocating radioisotope-powered cantilever
Self-reciprocating radioisotope-powered cantilever
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DOI：
10.1063/1.1479755
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发表时间：
2002-06
影响因子：
3.2
通讯作者：
Hui Li;A. Lal;J. Blanchard;D. Henderson
中科院分区：
文献类型：
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作者：
Hui Li;A. Lal;J. Blanchard;D. Henderson
提出了一种利用毫居里放射性同位素薄膜发射电荷的往复悬臂。执行器实现了直接收集电荷到运动的转换。往复运动是通过悬臂梁与放射性同位素源之间的自定时接触获得的。平衡来自等效电路的静电力和机械力的静态模型导致对器件表征有用的解析解。测量的往复周期与分析模型的预测值一致。尺度分析表明，这种悬臂梁的微尺度阵列提供了一个集成的传感器和执行器平台。
A reciprocating cantilever utilizing emitted charges from a millicurie radioisotope thin film is presented. The actuator realizes a direct collected-charge-to-motion conversion. The reciprocation is obtained by self-timed contact between the cantilever and the radioisotope source. A static model balancing the electrostatic and mechanical forces from an equivalent circuit leads to an analytical solution useful for device characterization. Measured reciprocating periods agree with predicted values from the analytical model. A scaling analysis shows that microscale arrays of such cantilevers provide an integrated sensor and actuator platform.