期刊
REMOTE SENSING
卷 14, 期 17, 页码 -出版社
MDPI
DOI: 10.3390/rs14174389
关键词
optomechanics; accelerometry; geodesy
类别
资金
- National Geospatial-Intelligence Agency (NGA) [HMA04762010016]
- National Science Foundation (NSF) [PHY-2045579]
- National Aeronautics and Space Administration (NASA) [80NSSC20K1723, 80NSSC22K0281]
- Jet Propulsion Laboratory (JPL) [1677619]
We present a novel optomechanical inertial sensor for low-frequency applications and corresponding acceleration measurements. This sensor demonstrates high performance and low susceptibility to environmental variables, making it an attractive technology for future space geodesy missions. We provide an experimental demonstration of low-frequency ground seismic noise detection and data analysis algorithms for noise source identification, characterization, and correction.
We present a novel optomechanical inertial sensor for low-frequency applications and corresponding acceleration measurements. This sensor has a resonant frequency of 4.715 (1) Hz, a mechanical quality factor of 4.76(3) x 10(5), a test mass of 2.6 g, and a projected noise floor of approximately 5 x 10(-11) ms(-2)/root Hz at 1 Hz. Such performance, together with its small size, low weight, reduced power consumption, and low susceptibility to environmental variables such as magnetic field or drag conditions makes it an attractive technology for future space geodesy missions. In this paper, we present an experimental demonstration of low-frequency ground seismic noise detection by direct comparison with a commercial seismometer, and data analysis algorithms for the identification, characterization, and correction of several noise sources.
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