realtime monitor of tilt-induced excess motion at the microseism

Document #:

LIGO-T2300286-v1

Document type:

T - Technical notes

Abstract:

Plots of tilt-induced excess motion at the microseism. The script converts the ground motion, the CPS motion, and the GS-13 motion into velocity units around the microseism and compares them. Since nominally the CPS = GS13-ground, you can create a residual signal which should be zero, but of course it is not. These are the plots from SEI log 2258 and SEI log 2252.

Files in Document:

• summary_text.txt (7.7 kB)

Other Files:

• H1-HAM2_excess_motion_plots.pdf (1.8 MB)
• H1-HAM3_excess_motion_plots.pdf (1.8 MB)
• H1-HAM4_excess_motion_plots.pdf (1.8 MB)
• H1-HAM5_excess_motion_plots.pdf (1.8 MB)
• H1-HAM6_excess_motion_plots.pdf (1.9 MB)
• L1-HAM2_excess_motion_plots.pdf (2.0 MB)
• L1-HAM3_excess_motion_plots.pdf (1.8 MB)
• L1-HAM4_excess_motion_plots.pdf (1.8 MB)
• L1-HAM5_excess_motion_plots.pdf (1.8 MB)
• L1-HAM6_excess_motion_plots.pdf (1.8 MB)
• L1-HAM7_excess_motion_plots.pdf (1.7 MB)
• LHO_residuals.pdf (942.7 kB)
• LLO_residuals.pdf (978.6 kB)

Topics:

• Seismic Isolation

Authors:

• Brian Lantz

Keywords:

HAM BSC ISI tilt microseism

Notes and Changes:

These were done prior to the gain-matching exercise we did with the fancy comb drives. See the SEI log for more info on the results from that (so far, not so great)

Referenced by: