Mechanical loss factors of materials and suspension systems for advanced gravitational wave detectors

2000 ◽  
Author(s):  
Sheila Rowan
Keyword(s):  
Gravitational Wave ◽  
Mechanical Loss ◽  
Suspension Systems ◽  
Gravitational Wave Detectors ◽  
Loss Factors

Investigation of mechanical loss factors of some candidate materials for the test masses of gravitational wave detectors

2000 ◽  
Vol 265 (1-2) ◽  
pp. 5-11 ◽  
Author(s):  
S. Rowan ◽  
G. Cagnoli ◽  
P. Sneddon ◽  
J. Hough ◽  
R. Route ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Mechanical Loss ◽  
Gravitational Wave Detectors ◽  
Loss Factors

scholarly journals Modelling a mechanical antenna for a calibrator for interferometric gravitational wave detector using finite elements method

2021 ◽  
Vol 2090 (1) ◽  
pp. 012157
Author(s):  
A R C Prado ◽  
F S Bortoli ◽  
N. S. Magalhaes ◽  
R N Duarte ◽  
C Frajuca ◽  
...  
Keyword(s):  
Finite Elements ◽  
Gravitational Wave ◽  
Finite Elements Method ◽  
Gravitational Wave Detector ◽  
Active Systems ◽  
Suspension Systems ◽  
Wave Detector ◽  
Active Suspension Systems ◽  
Gravitational Wave Detectors ◽  
Made In

Abstract Interferometric gravitational wave detectors (IGWD) are a very complex detector, the need to lock the detector in a dark fringe condition besides the vibrations that affect the mirrors, creates the necessity of using active suspension systems. These active systems make the system reach the desired sensitivity but make the calibration of such detectors much more difficult. To solve this problem a calibrator is proposed, a resonant mass gravitational wave detector could be used to detect the same signal in a narrower band and use the measured amplitude to calibrate the IGWD, as resonant mass gravitational wave detectors are easily calibrated. This work aims to design the mechanical antenna of such a calibrator. The main difficulty is to design the calibrator is the frequencies required to make the detection. These massive detectors usually were made in frequencies close to 1 kHz and the frequency range to operate for better sensitivity is around 100 Hz. The antenna is modelled in finite elements method and a design of such an antenna is presented.

scholarly journals Potential mechanical loss mechanisms in bulk materials for future gravitational wave detectors

2010 ◽  
Vol 228 ◽  
pp. 012032 ◽  
Author(s):  
D Heinert ◽  
A Grib ◽  
K Haughian ◽  
J Hough ◽  
S Kroker ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Bulk Materials ◽  
Mechanical Loss ◽  
Gravitational Wave Detectors ◽  
Loss Mechanisms

scholarly journals Measurement of the mechanical loss of prototype GaP/AlGaP crystalline coatings for future gravitational wave detectors

2015 ◽  
Vol 32 (3) ◽  
pp. 035002 ◽  
Author(s):  
A V Cumming ◽  
K Craig ◽  
I W Martin ◽  
R Bassiri ◽  
L Cunningham ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Mechanical Loss ◽  
Gravitational Wave Detectors
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