TatsukiWashimi - 22:07, Wednesday 22 June 2022 (2991)
Hammering test for FC optics
[Marc, YokozaWashimi]
We performed the hammering test for the FC optics, to investigate the origin of the 170Hz noise.
50n Hz peaks are AC power and its harmonics.
The Eigen frequencies of the optics are higher.
The most suspicious object was the chamber.
We performed the hammering test for the FC optics, to investigate the origin of the 170Hz noise.
50n Hz peaks are AC power and its harmonics.
The Eigen frequencies of the optics are higher.
The most suspicious object was the chamber.
Non-image files attached to this report
Comments related to this report
I summarized the results of the hammering test, with power lines removal.