High performance rotational vibration isolator

Andrew Sunderland; David Blair; Li Ju; Howard Golden; F. Torres; X. Chen; R. Lockwood; P. Wolfgram

doi:10.1063/1.4825342

High performance rotational vibration isolator

Andrew Sunderland, David Blair, Li Ju, Howard Golden, F. Torres, X. Chen, R. Lockwood, P. Wolfgram

Research output: Contribution to journal › Article

4 Citations (Scopus)

Abstract

We present a new rotational vibration isolator with an extremely low resonant frequency of 0.055 ± 0.002 Hz. The isolator consists of two concentric spheres separated by a layer of water and joined by very soft silicone springs. The isolator reduces rotation noise at all frequencies above its resonance which is very important for airborne mineral detection. We show that more than 40 dB of isolation is achieved in a helicopter survey for rotations at frequencies between 2 Hz and 20 Hz. Issues affecting performance such as translation to rotation coupling and temperature are discussed. The isolator contains almost no metal, making it particularly suitable for electromagnetic sensors. © 2013 AIP Publishing LLC.

Original language	English
Pages (from-to)	105111-1 - 105111-6
Journal	Review of Scientific Instruments
Volume	84
Issue number	10
DOIs	https://doi.org/10.1063/1.4825342
Publication status	Published - 2013

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10.1063/1.4825342

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title = "High performance rotational vibration isolator",

abstract = "We present a new rotational vibration isolator with an extremely low resonant frequency of 0.055 ± 0.002 Hz. The isolator consists of two concentric spheres separated by a layer of water and joined by very soft silicone springs. The isolator reduces rotation noise at all frequencies above its resonance which is very important for airborne mineral detection. We show that more than 40 dB of isolation is achieved in a helicopter survey for rotations at frequencies between 2 Hz and 20 Hz. Issues affecting performance such as translation to rotation coupling and temperature are discussed. The isolator contains almost no metal, making it particularly suitable for electromagnetic sensors. {\textcopyright} 2013 AIP Publishing LLC.",

author = "Andrew Sunderland and David Blair and Li Ju and Howard Golden and F. Torres and X. Chen and R. Lockwood and P. Wolfgram",

year = "2013",

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T1 - High performance rotational vibration isolator

AU - Sunderland, Andrew

AU - Blair, David

AU - Ju, Li

AU - Golden, Howard

AU - Torres, F.

AU - Chen, X.

AU - Lockwood, R.

AU - Wolfgram, P.

PY - 2013

Y1 - 2013

N2 - We present a new rotational vibration isolator with an extremely low resonant frequency of 0.055 ± 0.002 Hz. The isolator consists of two concentric spheres separated by a layer of water and joined by very soft silicone springs. The isolator reduces rotation noise at all frequencies above its resonance which is very important for airborne mineral detection. We show that more than 40 dB of isolation is achieved in a helicopter survey for rotations at frequencies between 2 Hz and 20 Hz. Issues affecting performance such as translation to rotation coupling and temperature are discussed. The isolator contains almost no metal, making it particularly suitable for electromagnetic sensors. © 2013 AIP Publishing LLC.

AB - We present a new rotational vibration isolator with an extremely low resonant frequency of 0.055 ± 0.002 Hz. The isolator consists of two concentric spheres separated by a layer of water and joined by very soft silicone springs. The isolator reduces rotation noise at all frequencies above its resonance which is very important for airborne mineral detection. We show that more than 40 dB of isolation is achieved in a helicopter survey for rotations at frequencies between 2 Hz and 20 Hz. Issues affecting performance such as translation to rotation coupling and temperature are discussed. The isolator contains almost no metal, making it particularly suitable for electromagnetic sensors. © 2013 AIP Publishing LLC.

U2 - 10.1063/1.4825342

DO - 10.1063/1.4825342

M3 - Article

VL - 84

SP - 105111-1 - 105111-6

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

SN - 0034-6748

IS - 10

ER -