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A Testing Method for Shipborne Atomic Gravimeter Based on the Modulated Coriolis Effect
Shipborne atomic gravimeter (SAG) is an instrument that can directly measure absolute gravity in dynamic environments. As a new type of gravity sensor, a standard method for evaluating its detailed performance has not been proposed and the detailed performance of SAG was rarely reported. In this pap...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9864345/ https://www.ncbi.nlm.nih.gov/pubmed/36679686 http://dx.doi.org/10.3390/s23020881 |
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author | Zhou, Yin Zhang, Can Chen, Peijun Cheng, Bing Zhu, Dong Wang, Kainan Wang, Xiaolong Wu, Bin Qiao, Zhongkun Lin, Qiang Li, Rui |
author_facet | Zhou, Yin Zhang, Can Chen, Peijun Cheng, Bing Zhu, Dong Wang, Kainan Wang, Xiaolong Wu, Bin Qiao, Zhongkun Lin, Qiang Li, Rui |
author_sort | Zhou, Yin |
collection | PubMed |
description | Shipborne atomic gravimeter (SAG) is an instrument that can directly measure absolute gravity in dynamic environments. As a new type of gravity sensor, a standard method for evaluating its detailed performance has not been proposed and the detailed performance of SAG was rarely reported. In this paper, a system of dynamic gravity measurement, which was integrated with a home-made atomic gravimeter, is demonstrated, and a novel and simple method for testing the performance of SAG on the lake based on the modulated Coriolis effect is put forward. Firstly, in the state of ship mooring, a tilt modulation of the gravity sensor has been realized to make sure the Raman wave vector is parallel to the gravity axis. Moreover, a comparison between the measurement result of CG-5 and SAG has also been carried out to evaluate the accuracy of the SAG. Then, the Coriolis effect modulating experiment is carried out with various routes on lake to test its performance in dynamic environments. In the ship mooring state, the accuracy has been demonstrated to be 0.643 mGal. The internal consistency reliabilities are evaluated to be 0.8 mGal and 1.2 mGal under the conditions of straight line and circle navigation, respectively. |
format | Online Article Text |
id | pubmed-9864345 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-98643452023-01-22 A Testing Method for Shipborne Atomic Gravimeter Based on the Modulated Coriolis Effect Zhou, Yin Zhang, Can Chen, Peijun Cheng, Bing Zhu, Dong Wang, Kainan Wang, Xiaolong Wu, Bin Qiao, Zhongkun Lin, Qiang Li, Rui Sensors (Basel) Communication Shipborne atomic gravimeter (SAG) is an instrument that can directly measure absolute gravity in dynamic environments. As a new type of gravity sensor, a standard method for evaluating its detailed performance has not been proposed and the detailed performance of SAG was rarely reported. In this paper, a system of dynamic gravity measurement, which was integrated with a home-made atomic gravimeter, is demonstrated, and a novel and simple method for testing the performance of SAG on the lake based on the modulated Coriolis effect is put forward. Firstly, in the state of ship mooring, a tilt modulation of the gravity sensor has been realized to make sure the Raman wave vector is parallel to the gravity axis. Moreover, a comparison between the measurement result of CG-5 and SAG has also been carried out to evaluate the accuracy of the SAG. Then, the Coriolis effect modulating experiment is carried out with various routes on lake to test its performance in dynamic environments. In the ship mooring state, the accuracy has been demonstrated to be 0.643 mGal. The internal consistency reliabilities are evaluated to be 0.8 mGal and 1.2 mGal under the conditions of straight line and circle navigation, respectively. MDPI 2023-01-12 /pmc/articles/PMC9864345/ /pubmed/36679686 http://dx.doi.org/10.3390/s23020881 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Communication Zhou, Yin Zhang, Can Chen, Peijun Cheng, Bing Zhu, Dong Wang, Kainan Wang, Xiaolong Wu, Bin Qiao, Zhongkun Lin, Qiang Li, Rui A Testing Method for Shipborne Atomic Gravimeter Based on the Modulated Coriolis Effect |
title | A Testing Method for Shipborne Atomic Gravimeter Based on the Modulated Coriolis Effect |
title_full | A Testing Method for Shipborne Atomic Gravimeter Based on the Modulated Coriolis Effect |
title_fullStr | A Testing Method for Shipborne Atomic Gravimeter Based on the Modulated Coriolis Effect |
title_full_unstemmed | A Testing Method for Shipborne Atomic Gravimeter Based on the Modulated Coriolis Effect |
title_short | A Testing Method for Shipborne Atomic Gravimeter Based on the Modulated Coriolis Effect |
title_sort | testing method for shipborne atomic gravimeter based on the modulated coriolis effect |
topic | Communication |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9864345/ https://www.ncbi.nlm.nih.gov/pubmed/36679686 http://dx.doi.org/10.3390/s23020881 |
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