用于超灵敏空间加速度测量的六四极抗磁悬浮架构
A Six-Quadrupole Diamagnetic Suspension Architecture for Ultra-Sensitive Space Accelerometry
AI总结：
本文提出一种基于六磁四极子对称配置的固态抗磁立方体被动悬浮惯性传感器，用于微重力空间超灵敏加速度测量，理论分析与地面实验表明灵敏度可达$10^{-10} \text{ m/s}^2/\sqrt{\text{Hz}}$量级。
AI中文摘要：
本文提出了一种新型惯性传感器，其核心是一个固态抗磁立方体测试质量，通过六个磁四极子的对称配置被动悬浮。该系统专为微重力环境设计，消除了弹性悬浮固有的机械噪声和磁滞，以及静电悬浮系统的复杂性。我们分析了由涡流阻尼引起的磁本征噪声底限，并提供了地面初步实验结果，展示了在$10^{-10} \text{ m/s}^2/\sqrt{\text{Hz}}$量级的潜在灵敏度。
英文摘要：
This paper proposes a novel inertial sensor based on a solid diamagnetic cubic test mass passively suspended by a symmetric configuration of six magnetic quadrupoles. Designed specifically for microgravity environments, this system eliminates the mechanical noise and hysteresis inherent in elastic suspensions, as well as the complexity associated with electrostatic suspension systems. We provide an analysis of the magnetic intrinsic noise floor imposed by eddy current damping, alongside ground-based preliminary experimental results demonstrating potential sensitivities in the order of the $10^{-10} \text{ m/s}^2/\sqrt{\text{Hz}}$ regime.
