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Single-Element Dual-Interferometer for Precision Inertial Sensing

Tracking moving masses in several degrees of freedom with high precision and large dynamic range is a central aspect in many current and future gravitational physics experiments. Laser interferometers have been established as one of the tools of choice for such measurement schemes. Using sinusoidal...

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Autores principales: Yang, Yichao, Yamamoto, Kohei, Huarcaya, Victor, Vorndamme, Christoph, Penkert, Daniel, Fernández Barranco, Germán, Schwarze, Thomas S., Mehmet, Moritz, Esteban Delgado, Juan Jose, Jia, Jianjun, Heinzel, Gerhard, Dovale Álvarez, Miguel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7506752/
https://www.ncbi.nlm.nih.gov/pubmed/32899128
http://dx.doi.org/10.3390/s20174986
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author Yang, Yichao
Yamamoto, Kohei
Huarcaya, Victor
Vorndamme, Christoph
Penkert, Daniel
Fernández Barranco, Germán
Schwarze, Thomas S.
Mehmet, Moritz
Esteban Delgado, Juan Jose
Jia, Jianjun
Heinzel, Gerhard
Dovale Álvarez, Miguel
author_facet Yang, Yichao
Yamamoto, Kohei
Huarcaya, Victor
Vorndamme, Christoph
Penkert, Daniel
Fernández Barranco, Germán
Schwarze, Thomas S.
Mehmet, Moritz
Esteban Delgado, Juan Jose
Jia, Jianjun
Heinzel, Gerhard
Dovale Álvarez, Miguel
author_sort Yang, Yichao
collection PubMed
description Tracking moving masses in several degrees of freedom with high precision and large dynamic range is a central aspect in many current and future gravitational physics experiments. Laser interferometers have been established as one of the tools of choice for such measurement schemes. Using sinusoidal phase modulation homodyne interferometry allows a drastic reduction of the complexity of the optical setup, a key limitation of multi-channel interferometry. By shifting the complexity of the setup to the signal processing stage, these methods enable devices with a size and weight not feasible using conventional techniques. In this paper we present the design of a novel sensor topology based on deep frequency modulation interferometry: the self-referenced single-element dual-interferometer (SEDI) inertial sensor, which takes simplification one step further by accommodating two interferometers in one optic. Using a combination of computer models and analytical methods we show that an inertial sensor with sub-picometer precision for frequencies above 10 mHz, in a package of a few cubic inches, seems feasible with our approach. Moreover we show that by combining two of these devices it is possible to reach sub-picometer precision down to 2 mHz. In combination with the given compactness, this makes the SEDI sensor a promising approach for applications in high precision inertial sensing for both next-generation space-based gravity missions employing drag-free control, and ground-based experiments employing inertial isolation systems with optical readout.
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spelling pubmed-75067522020-09-26 Single-Element Dual-Interferometer for Precision Inertial Sensing Yang, Yichao Yamamoto, Kohei Huarcaya, Victor Vorndamme, Christoph Penkert, Daniel Fernández Barranco, Germán Schwarze, Thomas S. Mehmet, Moritz Esteban Delgado, Juan Jose Jia, Jianjun Heinzel, Gerhard Dovale Álvarez, Miguel Sensors (Basel) Article Tracking moving masses in several degrees of freedom with high precision and large dynamic range is a central aspect in many current and future gravitational physics experiments. Laser interferometers have been established as one of the tools of choice for such measurement schemes. Using sinusoidal phase modulation homodyne interferometry allows a drastic reduction of the complexity of the optical setup, a key limitation of multi-channel interferometry. By shifting the complexity of the setup to the signal processing stage, these methods enable devices with a size and weight not feasible using conventional techniques. In this paper we present the design of a novel sensor topology based on deep frequency modulation interferometry: the self-referenced single-element dual-interferometer (SEDI) inertial sensor, which takes simplification one step further by accommodating two interferometers in one optic. Using a combination of computer models and analytical methods we show that an inertial sensor with sub-picometer precision for frequencies above 10 mHz, in a package of a few cubic inches, seems feasible with our approach. Moreover we show that by combining two of these devices it is possible to reach sub-picometer precision down to 2 mHz. In combination with the given compactness, this makes the SEDI sensor a promising approach for applications in high precision inertial sensing for both next-generation space-based gravity missions employing drag-free control, and ground-based experiments employing inertial isolation systems with optical readout. MDPI 2020-09-03 /pmc/articles/PMC7506752/ /pubmed/32899128 http://dx.doi.org/10.3390/s20174986 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Yichao
Yamamoto, Kohei
Huarcaya, Victor
Vorndamme, Christoph
Penkert, Daniel
Fernández Barranco, Germán
Schwarze, Thomas S.
Mehmet, Moritz
Esteban Delgado, Juan Jose
Jia, Jianjun
Heinzel, Gerhard
Dovale Álvarez, Miguel
Single-Element Dual-Interferometer for Precision Inertial Sensing
title Single-Element Dual-Interferometer for Precision Inertial Sensing
title_full Single-Element Dual-Interferometer for Precision Inertial Sensing
title_fullStr Single-Element Dual-Interferometer for Precision Inertial Sensing
title_full_unstemmed Single-Element Dual-Interferometer for Precision Inertial Sensing
title_short Single-Element Dual-Interferometer for Precision Inertial Sensing
title_sort single-element dual-interferometer for precision inertial sensing
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7506752/
https://www.ncbi.nlm.nih.gov/pubmed/32899128
http://dx.doi.org/10.3390/s20174986
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