A 6D interferometric inertial isolation system

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A 6D interferometric inertial isolation system. / Mow-Lowry, Conor M.; Martynov, Denis.

In: Classical and Quantum Gravity, Vol. 36, No. 24, 245006, 14.11.2019.

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@article{cd541a07baf54c7da8e43a2beaf55f5f,
title = "A 6D interferometric inertial isolation system",
abstract = " We present a novel inertial-isolation scheme based on six degree-of-freedom (6D) interferometric sensing of a single reference mass. It is capable of reducing inertial motion by more than two orders of magnitude at 100\,mHz compared with what is achievable with state-of-the-art seismometers. This will enable substantial improvements in the low-frequency sensitivity of gravitational-wave detectors. The scheme is inherently two-stage, the reference mass is softly suspended within the platform to be isolated, which is itself suspended from the ground. The platform is held constant relative to the reference mass and this closed-loop control effectively transfers the low acceleration-noise of the reference mass to the platform. A high loop gain also reduces non-linear couplings and dynamic range requirements in the soft-suspension mechanics and the interferometric sensing. ",
keywords = "astro-ph.IM, gr-qc, physics.ins-det",
author = "Mow-Lowry, {Conor M.} and Denis Martynov",
year = "2019",
month = nov
day = "14",
doi = "10.1088/1361-6382/ab4e01",
language = "English",
volume = "36",
journal = "Classical and Quantum Gravity",
issn = "0264-9381",
publisher = "IOP Publishing",
number = "24",

}

RIS

TY - JOUR

T1 - A 6D interferometric inertial isolation system

AU - Mow-Lowry, Conor M.

AU - Martynov, Denis

PY - 2019/11/14

Y1 - 2019/11/14

N2 - We present a novel inertial-isolation scheme based on six degree-of-freedom (6D) interferometric sensing of a single reference mass. It is capable of reducing inertial motion by more than two orders of magnitude at 100\,mHz compared with what is achievable with state-of-the-art seismometers. This will enable substantial improvements in the low-frequency sensitivity of gravitational-wave detectors. The scheme is inherently two-stage, the reference mass is softly suspended within the platform to be isolated, which is itself suspended from the ground. The platform is held constant relative to the reference mass and this closed-loop control effectively transfers the low acceleration-noise of the reference mass to the platform. A high loop gain also reduces non-linear couplings and dynamic range requirements in the soft-suspension mechanics and the interferometric sensing.

AB - We present a novel inertial-isolation scheme based on six degree-of-freedom (6D) interferometric sensing of a single reference mass. It is capable of reducing inertial motion by more than two orders of magnitude at 100\,mHz compared with what is achievable with state-of-the-art seismometers. This will enable substantial improvements in the low-frequency sensitivity of gravitational-wave detectors. The scheme is inherently two-stage, the reference mass is softly suspended within the platform to be isolated, which is itself suspended from the ground. The platform is held constant relative to the reference mass and this closed-loop control effectively transfers the low acceleration-noise of the reference mass to the platform. A high loop gain also reduces non-linear couplings and dynamic range requirements in the soft-suspension mechanics and the interferometric sensing.

KW - astro-ph.IM

KW - gr-qc

KW - physics.ins-det

U2 - 10.1088/1361-6382/ab4e01

DO - 10.1088/1361-6382/ab4e01

M3 - Article

VL - 36

JO - Classical and Quantum Gravity

JF - Classical and Quantum Gravity

SN - 0264-9381

IS - 24

M1 - 245006

ER -