Design and verification of low acoustic loss suspension systems for measuring the Q-factor of a gravitational wave detector test mass

1998 ◽  
Vol 246 (1-2) ◽  
pp. 37-42 ◽  
Author(s):  
Mitsuru Taniwaki ◽  
Li Ju ◽  
David G. Blair ◽  
Michael E. Tobar
Keyword(s):  
Gravitational Wave ◽  
Test Mass ◽  
Gravitational Wave Detector ◽  
Q Factor ◽  
Suspension Systems ◽  
Wave Detector ◽  
Acoustic Loss

Practical test mass and suspension configuration for a cryogenic kilohertz gravitational wave detector

2020 ◽  
Vol 102 (12) ◽  
Author(s):  
J. Eichholz ◽  
N. A. Holland ◽  
V. B. Adya ◽  
J. V. van Heijningen ◽  
R. L. Ward ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Test Mass ◽  
Gravitational Wave Detector ◽  
Practical Test ◽  
Wave Detector

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.

Improvements on the test mass suspensions of the VIRGO laser interferometer gravitational wave detector

1995 ◽  
Vol 199 (5-6) ◽  
pp. 307-314 ◽  
Author(s):  
S. Braccini ◽  
C. Bradaschia ◽  
R. del Fabbro ◽  
A. di Virgilio ◽  
I. Ferrante ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Laser Interferometer ◽  
Test Mass ◽  
Gravitational Wave Detector ◽  
Wave Detector

scholarly journals China’s first step towards probing the expanding universe and the nature of gravity using a space borne gravitational wave antenna

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Keyword(s):  
Gravitational Wave ◽  
Hubble Constant ◽  
Gravitational Wave Detector ◽  
Expanding Universe ◽  
Satellite Mission ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Wave Detector ◽  
Wave Antenna ◽  
Gravitational Wave Antenna

AbstractIn this perspective, we outline that a space borne gravitational wave detector network combining LISA and Taiji can be used to measure the Hubble constant with an uncertainty less than 0.5% in ten years, compared with the network of the ground based gravitational wave detectors which can measure the Hubble constant within a 2% uncertainty in the next five years by the standard siren method. Taiji is a Chinese space borne gravitational wave detection mission planned for launch in the early 2030 s. The pilot satellite mission Taiji-1 has been launched in August 2019 to verify the feasibility of Taiji. The results of a few technologies tested on Taiji-1 are presented in this paper.

A noise model for the Brazilian gravitational wave detector  Mario Schenberg 

2004 ◽  
Vol 21 (5) ◽  
pp. S1107-S1111 ◽  
Author(s):  
Carlos Frajuca ◽  
Kilder L Ribeiro ◽  
Luiz A Andrade ◽  
Odylio D Aguiar ◽  
Nadja S Magalhães ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Noise Model ◽  
Gravitational Wave Detector ◽  
Wave Detector
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