MRI: Development of a Six-Axis, Magnetically Levitated Instrument for Nanoscale Science and Engineering

OIA-0116642机构：德克萨斯工程实验站PI：Won-Jong Kim标题：“MRI：开发一种用于纳米科学和工程的六轴磁力减重仪器摘要：纳米科学和工程是一个新兴的技术领域，具有巨大的经济和社会影响。该NSF磁共振成像项目提出了一种创新的六轴磁悬浮(Maglev)仪器的概念。这种新颖的仪器可以作为纳米技术和其他处理微妙运动和力的精密应用中许多关键研究活动的基础研究工具。它们包括纳米结构的制造、原子级操纵、微型部件的组装和封装、仪器的隔振以及地震运动检测。支撑标本的一个紧凑、轻便、单运动的部件最终将在所有六个自由度中被磁悬浮。该磁共振成像项目的目标是开发磁悬浮原型设计概念，并展示其在纳米技术中的适用性。磁悬浮是一种实现高精度多轴运动产生和控制的技术。在这个仪器开发计划的第一年，我们将建立一个动态模型，并分析机械和电磁特性。在完成详细设计后，我们将构建一个单轴单元微耳执行器，将其行为与理论进行比较，并进行实验标定。这个单元执行器将是第二年年底建造的完整6轴仪器的基石。在该磁共振成像项目的最后一年中，我们将根据之前获得的动态模型设计并实现实时数字控制器，并进行各种测试和实验。

OIA-0116642Institution: Texas Engineering Experiment StationPI: Won-jong KimTitle: "MRI: Development of a Six-Axis, Magnetically Leviatated Instrument for Nanoscale Science and EngineeringAbstract: Nanoscale science and engineering is an emerging technological field and has immense economic and societal impacts. This NSF MRI project presents an innovative concept of a six-axis magnetically levitated (maglev) instrument. This novel instrument can be a fundamental research tool in many crucial research activities in nanotechnology and other precision applications dealing with delicate motions and forces. They include manufacture of nanoscale structures, atomic-level manipulation, assembly and packaging of microparts, vibration isolation for instrumentation, and seismic motion detection. A compact, lightweight, single-moving part that holds the specimen will eventually be magnetically levitated in all six degrees of freedom. The objective of this MRI project is development of a maglev prototype design concept and to demonstrate its applicability in nanotechnology. Magnetic levitation is an enabling technology for high-precision multi-axis motion generation and control. During the first year of this instrument development program, we will derive a dynamic model and analyze mechanical and electromagnetic characteristics. After completing detailed design, we will construct a single-axis unit lenear actuator, compare its behavior with the theory, and calibrate it experimentally. This unit actuator will be a corner stone for the full 6-axis instrument to be constructed by the end of the second year. During the last year of this MRI project, we will design and implement real-time digital controllers based on the dynamic model obtained previously, and perform various tests and experiments.