Normal Mode Suppression in All Metal Cantilever Vibration Isolators

W. Ke; David Blair; M. Notcutt; L. Ju

doi:10.1016/0375-9601(94)00946-M

Normal Mode Suppression in All Metal Cantilever Vibration Isolators

W. Ke, David Blair, M. Notcutt, L. Ju

Graduate Research School

Research output: Contribution to journal › Article

Abstract

An all metal multi-stage low frequency vibration isolator for a laser interferometer gravitational wave detector has been built and tested. Curved cantilever springs are used to form a low frequency compact form of isolation element. The system has many modes with moderately high Q factors which require damping. We describe here the successful damping of normal modes in all relevant degrees of freedom in an isolator with cutoff frequency less than 10 Hz. Measurements show no added noise above the control bandwidth.

Original language	English
Pages (from-to)	275-281
Journal	Physics Letters A
Volume	197
DOIs	https://doi.org/10.1016/0375-9601(94)00946-M
Publication status	Published - 1994

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@article{3b7415f4ff4747168cbefa82d82c4b14,

title = "Normal Mode Suppression in All Metal Cantilever Vibration Isolators",

abstract = "An all metal multi-stage low frequency vibration isolator for a laser interferometer gravitational wave detector has been built and tested. Curved cantilever springs are used to form a low frequency compact form of isolation element. The system has many modes with moderately high Q factors which require damping. We describe here the successful damping of normal modes in all relevant degrees of freedom in an isolator with cutoff frequency less than 10 Hz. Measurements show no added noise above the control bandwidth.",

author = "W. Ke and David Blair and M. Notcutt and L. Ju",

year = "1994",

doi = "10.1016/0375-9601(94)00946-M",

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journal = "Physics Letters A",

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publisher = "Elsevier",

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AU - Ke, W.

AU - Blair, David

AU - Notcutt, M.

AU - Ju, L.

PY - 1994

Y1 - 1994

N2 - An all metal multi-stage low frequency vibration isolator for a laser interferometer gravitational wave detector has been built and tested. Curved cantilever springs are used to form a low frequency compact form of isolation element. The system has many modes with moderately high Q factors which require damping. We describe here the successful damping of normal modes in all relevant degrees of freedom in an isolator with cutoff frequency less than 10 Hz. Measurements show no added noise above the control bandwidth.

AB - An all metal multi-stage low frequency vibration isolator for a laser interferometer gravitational wave detector has been built and tested. Curved cantilever springs are used to form a low frequency compact form of isolation element. The system has many modes with moderately high Q factors which require damping. We describe here the successful damping of normal modes in all relevant degrees of freedom in an isolator with cutoff frequency less than 10 Hz. Measurements show no added noise above the control bandwidth.

U2 - 10.1016/0375-9601(94)00946-M

DO - 10.1016/0375-9601(94)00946-M

M3 - Article

VL - 197

SP - 275

EP - 281

JO - Physics Letters A

JF - Physics Letters A

SN - 0375-9601

ER -