A Nuclear Microbattery for MEMS Devices
A Nuclear Microbattery for MEMS Devices
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DOI：
10.2172/799209
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发表时间：
2002-08
期刊：
影响因子：
--
通讯作者：
J. Blanchard;D. Henderson;A. Lal
中科院分区：
文献类型：
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作者：
J. Blanchard;D. Henderson;A. Lal
该项目旨在论证利用放射性同位素为MEMS设备生产车载电源的可行性。MEMS是一个快速发展的领域，希望能生产出各种革命性的应用，包括“芯片上的实验室”、微机械扫描隧道显微镜、用于生物制剂的微型探测器、用于DNA鉴定的微型系统等。目前，由于缺乏板载电源，这些应用受到限制。对燃料电池、化石燃料和化学电池等方法的研究正在进行中，但所有这些概念都有局限性。对于寿命长、能量密度高的应用，车载放射性同位素电源是最佳选择。我们已经成功地使用各种同位素、掺入方法和器件几何形状来制造这样的器件。这些实验证明了使用放射性同位素电源的可行性，并且为MEMS设计者提供了多种选择。作为集成的自给能应用的一个例子，我们创造了一种振动悬臂梁，它能够在非常长的时间周期内进行一致的周期性振动，而不需要加油。正在进行的工作将证明这种悬臂能够进行射频传输，允许MEMS设备之间进行无线通信。因此，这将是第一个可用于MEMS设备的自供电无线More？发射器，允许将传感器等应用于建筑物中，以持续监测建筑物的性能和完整性。
This project was designed to demonstrate the feasibility of producing on-board power for MEMS devices using radioisotopes. MEMS is a fast growing field, with hopes for producing a wide variety of revolutionary applications, including ''labs on a chip,'' micromachined scanning tunneling microscopes, microscopic detectors for biological agents, microsystems for DNA identification, etc. Currently, these applications are limited by the lack of an on-board power source. Research is ongoing to study approaches such as fuel cells, fossil fuels, and chemical batteries, but all these concepts have limitations. For long-lived, high energy density applications, on-board radioisotope power offers the best choice. We have succeeded in producing such devices using a variety of isotopes, incorporation methods, and device geometries. These experiments have demonstrated the feasibility of using radioisotope power and that there are a variety of options available for MEMS designers. As an example of an integrated, self-powered application, we have created an oscillating cantilever beam that is capable of consistent, periodic oscillations over very long time periods without the need for refueling. Ongoing work will demonstrate that this cantilever is capable of radio frequency transmission, allowing MEMS devices to communicate with one another wirelessly. Thus, this will be the first self-powered wirelessmore » transmitter available for use in MEMS devices, permitting such applications as sensors embedded in buildings for continuous monitoring of the building performance and integrity.« less