SBIR Phase I: Atomic High Magnetic Field Probe

SBIR 第一阶段：原子强磁场探测器

• 批准号: 1746983
• 负责人: David Anderson
• 金额: $ 22.5万
• 依托单位: Rydberg Technologies, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-01-01 至 2019-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1746983&HistoricalAwards=false
• 关键词: SBIR; Phase; Atomic; Magnetic; Field

This Small Business Innovation Research (SBIR) Phase I project is focused on developing a new probe technology for high magnetic field sensing and measurement. The technology utilizes a circuit-free, atom-based field sensing element that affords absolute measurements of strong fields with high-speed all-optical readout that is free of electromagnetic interference, directly addressing capability gaps in existing technologies relevant to a variety of industries. A broad commercial potential is in fault-detection in condition-monitoring systems for motors and generators, where faults due to occurrences such as over-fluxing or magnetization can lead to major damage, costly repairs and production downtime. The atomic probe addresses an unmet need for reliable, localized measurements up to several Tesla of magnetic field within and surrounding conductive components in rotating machines for early fault detection. The technology also promises to expand capabilities of laboratory measurement instrumentation and contribute to experimental high magnetic field science requiring advanced instrumentation for measurement in the 1 to 100 Tesla range. The extraordinary opportunities for scientific research and technological development represented by investment in high magnetic field laboratories were set out in influential reports of the National Academies of Science (2004 and 2013). The field probe is expected to contribute to this on-going, multi-disciplinary effort. The intellectual merit of this project includes the research and demonstration of key components and capabilities of an atomic high magnetic field probe. The innovation lies in a fundamentally new measurement approach that provides robust, absolute-standard (atomic) measurement and sensing of magnetic fields up to tens of Tesla at high speed and precision with a compact, circuit-free, all-optical sensing element. The probe operates based on atomic physics principles that describe the spectroscopic response of atoms in strong magnetic fields, and quantum-optics phenomena that serve as a practical means to achieve all-optical readout of the atomic spectra, from which information on the magnetic field is obtained. During this project, theoretical atomic spectra in strong magnetic fields will be developed, tested and refined. A vapor-cell probe suitable for sensing strong magnetic fields will be designed, fabricated, and tested. Laboratory experiments will be performed to measure the atomic response to magnetic fields in the range of 1 Tesla at ppm sensitivity levels. The method will also be tested in time-varying and switching magnetic fields, on timescales of 100ms. Miniaturization of probes and read-out units will be initiated, leading towards robust and compact, practical sensing elements with higher operation speed and improved performance characteristics.

该小型企业创新研究 (SBIR) 第一阶段项目的重点是开发用于高磁场传感和测量的新型探针技术。 该技术利用无电路、基于原子的场传感元件，通过不受电磁干扰的高速全光读出来提供强场的绝对测量，直接解决与各种行业相关的现有技术的能力差距。 电机和发电机状态监测系统的故障检测具有广泛的商业潜力，其中由于过度磁通或磁化等情况而导致的故障可能会导致重大损坏、昂贵的维修和生产停机。 原子探针解决了对旋转机器中导电部件内部和周围的磁场进行可靠、局部测量高达几特斯拉的未满足的需求，以进行早期故障检测。 该技术还有望扩展实验室测量仪器的功能，并为需要先进仪器在 1 至 100 特斯拉范围内进行测量的实验强磁场科学做出贡献。美国国家科学院的影响力报告（2004年和2013年）阐述了以高磁场实验室投资为代表的科学研究和技术发展的非凡机遇。现场调查预计将为这一持续的多学科努力做出贡献。 该项目的智力价值包括对原子强磁场探测器关键部件和功能的研究和演示。 这项创新在于一种全新的测量方法，该方法通过紧凑、无电路的全光学传感元件，提供强大、绝对标准（原子）的磁场测量和高达数十特斯拉的高速、高精度传感。 该探测器基于描述原子在强磁场中光谱响应的原子物理原理和量子光学现象，作为实现原子光谱全光学读出的实用手段，从中获得磁场信息。 在该项目期间，将开发、测试和完善强磁场中的理论原子光谱。 将设计、制造和测试适用于感测强磁场的蒸汽室探头。 将进行实验室实验，测量原子对 1 特斯拉范围内 ppm 灵敏度水平磁场的响应。 该方法还将在时变和切换磁场中进行测试，时间尺度为 100 毫秒。将启动探头和读出单元的小型化，从而实现坚固、紧凑、实用的传感元件，具有更高的操作速度和改进的性能特征。