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| * DFT, FFT and intro to Z transform: [[http://abut.sdsu.edu/TE302/Chap6.pdf|Link]] |
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| * Lecture 1 [[attachment:KAGRA_Lecture1_suspensions&digitalsystem-v2.pdf|PDF]] : VIS Suspensions and digital system. | * Lecture 1 [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=8551|PDF]] : VIS Suspensions and digital system. * Lecture 2 [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=8697|PDF]] : GAS filters and LVDTs. |
MIF
Design
* KAGRA Main Interferometer Design Document PDF
VIS introduction
General introduction for vibration isolation
Thesis of M. Blom PDF : General introduction for modern VIS
K. Arai's master's thesis PDF : A very good introduction for Type-C style suspension (in Japanese)
Specific topics
Monolithic Geometric Anti-Spring Blade by G. Cella arXiv: Theory of GAS filter
Electronics Setup and testing LIGO by B. Shapiro (about medm screens, dataviewer, diaggui, foton, transfer functions) PDF
Quality factor PDF
Strip Tool manuallink
Wire-mass system considering violin modes PDF
Pendulum with finite mass system N. Mio PDF
Pendulum with moving support G. Gonzalez PendulumWithMovingSupport_G_Gonzalez.pdf
LVDT signal conditioning: PDF
DFT, FFT and intro to Z transform: Link
Others vibration isolation thesis
Modeling and simulation of seismic attenuation system (SAS) for Virgo PDF
KAGRA VIS documents
PhD thesis of T. Sekiguchi for Type-B suspension Link
PhD thesis of A. Takamori for Low frequency seismic isolationPDF
KAGRA VIS Operations Manual
Lots of info on operating the suspensions, including interface software like MEDM, Simulink etc.