SBIR Phase I: High-Performance Cold Atom Gravimeter

SBIR 第一阶段：高性能冷原子重力仪

• 批准号: 1315900
• 负责人: Miroslav Shverdin
• 金额: $ 14.94万
• 依托单位: AOSense, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-07-01 至 2014-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1315900&HistoricalAwards=false
• 关键词: SBIR; Phase; Performance; Cold; Atom

This Small Business Innovation Research Program (SBIR) Phase I project will develop a detailed design and a comprehensive performance model for a highly sensitive, stable, and accurate field deployable laser-cooled atom interferometric gravimeter. In the laboratory, atom interferometric absolute gravimeters have achieved both exceptional long term accuracy and very low bias drift. The company will leverage proprietary technological advances developed and experimentally validated under previous, to produce a highly compact, field-deployable sensor for geodesy applications. The proposed very high performance gravimeter will attain an order-of-magnitude improvement compared to the state-of-the-art, at improved reliability, lower power consumption, smaller size and weight, and ultimately reduced cost. A novel configuration of the proposed sensor substantially suppresses well-known instrument sensitivity to high frequency vibration noise, enabling low cost field deployment. The main aspects of the Phase I effort include (1) evolving and customizing existing cold-atom technology for the compact, high performance gravimeter application. (2) Analyzing sensor performance via analytical models and Monte-Carlo simulations for intended deployment. (3) Producing a detailed engineering design of the complete system which will lead to rapid system build in Phase II.The broader impact/commercial potential of this project will benefit seismology, geodesy, and environmental sciences. Highly sensitive cold-atom gravimeters have tremendous commercialization potential for geophysical applications, mineral exploration, and as an early-warning system for earthquakes, tsunamis, or volcanic eruptions. The high installation and site preparation costs currently preclude a wider deployment of existing seismic sensors in a dense network. A denser sensor network of gravimeters and seismographs will improve both U.S. and international seismic event monitoring, prediction, and understanding capability. Highly sensitive gravimeters are currently deployed to map the earth?s field anomaly for precision navigation, monitoring earth?s tides for evidence of climate change and map out underground water tables for resource management. The superior performance, low power consumption, and small size and weight of the proposed gravimeter will both aid existing missions and facilitate new ones. As the price of future units? decreases to the cost of existing broadband seismometers, the proposed cold-atom sensor will become a superior alternative to existing broadband seismometers.

这个小企业创新研究计划（SBIR）第一阶段项目将开发一个高灵敏度，稳定，准确的现场部署激光冷却原子干涉重力仪的详细设计和全面的性能模型。 在实验室中，原子干涉绝对重力仪已经达到了极高的长期精度和极低的偏差漂移。 该公司将利用先前开发和实验验证的专有技术进步，为大地测量应用生产高度紧凑的现场部署传感器。 所提出的非常高性能的重力仪将达到一个数量级的改进相比，国家的最先进的，在提高可靠性，降低功耗，更小的尺寸和重量，并最终降低成本。 所提出的传感器的新颖配置基本上抑制了众所周知的仪器对高频振动噪声的敏感性，从而实现低成本的现场部署。 第一阶段工作的主要方面包括（1）发展和定制现有的冷原子技术，用于紧凑型高性能重力仪应用。 (2)通过分析模型和蒙特-卡罗模拟来分析传感器性能，以实现预期部署。(3)制定完整系统的详细工程设计，这将导致第二阶段的快速系统建设。该项目更广泛的影响/商业潜力将有利于地震学，大地测量学和环境科学。 高灵敏度的冷原子重力仪在地球物理应用、矿产勘探以及作为地震、海啸或火山爆发的早期预警系统方面具有巨大的商业化潜力。 目前，高昂的安装和场地准备费用妨碍了在密集网络中更广泛地部署现有的地震传感器。 由重力仪和地震仪组成的更密集的传感器网络将提高美国和国际地震事件的监测、预测和理解能力。 高灵敏度的重力仪目前被用来绘制地球地图？用于精确导航的磁场异常，监测地球？研究潮汐变化以寻找气候变化的证据，并为资源管理绘制地下水位图。 该重力仪的上级性能、低功耗、小尺寸和重量将有助于现有的任务并促进新的任务。作为未来单位的价格？降低了现有宽带地震仪的成本，所提出的冷原子传感器将成为现有宽带地震仪的上级替代品。