scholarly journals Tip-tilt mirror suspension: Beam steering for advanced laser interferometer gravitational wave observatory sensing and control signals

2011 ◽  
Vol 82 (12) ◽  
pp. 125108 ◽  
Author(s):  
Bram J. J. Slagmolen ◽  
Adam J. Mullavey ◽  
John Miller ◽  
David E. McClelland ◽  
Peter Fritschel
Keyword(s):  
Gravitational Wave ◽  
Laser Interferometer ◽  
Beam Steering ◽  
Control Signals ◽  
And Control ◽  
Suspension Beam

scholarly journals Sensing and control in dual-recycling laser interferometer gravitational-wave detectors

2003 ◽  
Vol 42 (7) ◽  
pp. 1244 ◽  
Author(s):  
Kenneth A. Strain ◽  
Guido Müller ◽  
Tom Delker ◽  
David H. Reitze ◽  
David B. Tanner ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Laser Interferometer ◽  
Gravitational Wave Detectors ◽  
And Control

scholarly journals LIGO: the Laser Interferometer Gravitational-Wave Observatory

2009 ◽  
Vol 72 (7) ◽  
pp. 076901 ◽  
Author(s):  
B P Abbott ◽  
R Abbott ◽  
R Adhikari ◽  
P Ajith ◽  
B Allen ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Laser Interferometer

DESIGN, PREPRODUCTION, AND PERFORMANCE OF THE CDF RUN IIB SILICON DETECTOR

2005 ◽  
Vol 20 (16) ◽  
pp. 3811-3814
Author(s):  
◽  
PAUL LUJAN
Keyword(s):  
Building Block ◽  
Silicon Detector ◽  
Radiation Hardness ◽  
Control Signals ◽  
Lightweight Structure ◽  
And Performance ◽  
Performance Results ◽  
And Control ◽  
Radiation Hard ◽  
Detector Design

A new silicon detector was designed by the CDF collaboration for Run IIb of the Tevatron at Fermilab. The main building block of the new detector is a "supermodule" or "stave", an innovative, compact and lightweight structure of several readout hybrids and sensors with a bus cable running directly underneath the sensors to carry power, data, and control signals to and from the hybrids. The hybrids use a new, radiation-hard readout chip, the SVX4 chip. A number of SVX4 chips, readout hybrids, sensors, and supermodules were produced and tested in preproduction. The performance (including radiation-hardness) and yield of these components met or exceeded all design goals. The detector design goals, solutions, and performance results are presented.

Key technologies analysis and design of ultra-clean & ultra-stable spacecraft for gravitational wave detection

2021 ◽  
pp. 2140021
Author(s):  
Kun Chen ◽  
Xiaofeng Zhang ◽  
Tong Guo ◽  
Zhi-Ming Cai ◽  
Keyword(s):  
Gravitational Wave ◽  
Measurement Accuracy ◽  
Laser Interferometer ◽  
Gravitational Interaction ◽  
Thermal Control ◽  
Theory Of Relativity ◽  
Gravitational Wave Detection ◽  
Analysis And Design ◽  
Wave Detection ◽  
Key Technologies

The observation of gravitational wave enables human to explore the origin, formation and evolution of universe governed by the gravitational interaction and the nature of gravity beyond general theory of relativity. The groundbreaking discovery of Gravitational Wave by Laser Interferometer Gravitational-Wave Observatory provides a brand-new observation way. While detecting gravitational wave on ground is limited by noises and test scale, space detection is an optimized alternative to learn rich sources in range of 0.1 mHz–1 Hz. Considering the great significance of space gravitational wave detection, ESA proposed LISA project, CAS also proposed Taiji project. Due to the extremely weak gravitational wave signal and high measurement accuracy requirement, the spaceborne GW observation antenna is accomplished by three spacecrafts constitute isosceles triangle formation intersatellite interferometer. The arm length of the interferometer reaches millions of kilometers between them, and the measurement accuracy reaches pico-meter magnitude. There are many key technologies including pm magnitude space laser interferometer metrology, drag-free control using TM of Gravity Reference Sensor, [Formula: see text]N micro thruster, ultra-clean & ultra-stable spacecraft, etc. This paper focuses on key technologies of the ultra-clean & ultra-stable spacecraft, analyzing the design of mechanical, thermal control and magnetic clean. Moreover, it reports the preliminary results of the technological breakthrough.

Laser interferometer for position measurement and control

Mechatronics ◽  
1993 ◽  
Vol 3 (2) ◽  
pp. 181-184 ◽  
Author(s):  
Zoltán Füzessy ◽  
Árpád Kiss ◽  
Pál Pacher
Keyword(s):  
Laser Interferometer ◽  
Position Measurement ◽  
And Control ◽  
Measurement And Control

scholarly journals MAGIC electromagnetic follow-up of gravitational wave alerts

2016 ◽  
Vol 12 (S324) ◽  
pp. 287-290
Author(s):  
Barbara De Lotto ◽  
Stefano Ansoldi ◽  
Angelo Antonelli ◽  
Alessio Berti ◽  
Alessandro Carosi ◽  
...  
Keyword(s):  
Black Hole ◽  
Data Analysis ◽  
Gravitational Wave ◽  
Laser Interferometer ◽  
Cherenkov Telescopes ◽  
Direct Observations ◽  
Binary Black Hole ◽  
Set Up

AbstractThe year 2015 witnessed the first direct observations of a transient gravitational-wave (GW) signal from binary black hole mergers by the Advanced Laser Interferometer Gravitational-wave Observatory (aLIGO) Collaboration with the Virgo Collaboration. The MAGIC two 17m diameter Cherenkov telescopes system joined since 2014 the vast collaboration of electromagnetic facilities for follow-up of gravitational wave alerts. During the 2015 LIGO-Virgo science run we set up the procedure for GW alerts follow-up and took data following the last GW alert. MAGIC results on the data analysis and prospects for the forthcoming run are presented.

scholarly journals Gravitational Fields and Gravitational Waves

2021 ◽  
Author(s):  
Tony Yuan
Keyword(s):  
Gravitational Field ◽  
Gravitational Wave ◽  
Gravitational Waves ◽  
Doppler Effect ◽  
Gravitational Force ◽  
Laser Interferometer ◽  
Speed Of Light ◽  
Gravitational Fields ◽  
Light Waves ◽  
Research Questions

The relative velocity between objects with finite velocity affects the reaction between them. This effect is known as general Doppler effect. The Laser Interferometer Gravitational-Wave Observatory (LIGO) discovered gravitational waves and found their speed to be equal to the speed of light c. Gravitational waves are generated following a disturbance in the gravitational field; they affect the gravitational force on an object. Just as light waves are subject to the Doppler effect, so are gravitational waves. This article explores the following research questions concerning gravitational waves: What is the spatial distribution of gravitational waves? Can the speed of a gravitational wave represent the speed of the gravitational field (the speed of the action of the gravitational field upon the object)? What is the speed of the gravitational field? Do gravitational waves caused by the revolution of the Sun affect planetary precession? Can we modify Newton’s gravitational equation through the influence of gravitational waves?

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