KAGRA Logbook

Reports 1-1 of 1

PEM (Center)

tatsuki.washimi - 17:19 Thursday 16 February 2023 (23995)

OMC Shaker injection scan

[Akutsu, YokozaWashimi]

Today we performed the shaker injections for a browse-leg of the OMC chamber.

10Hz width shaking scan: 50Hz - 500Hz
100Hz width shaking scan: 500Hz - 900Hz
10Hz width shakings with varied amplitudes: 80-90Hz, 90-100Hz, 150-160Hz, 280-290Hz,

Comments to this report:

tatsuki.washimi - 12:47 Friday 17 February 2023 (24011)

I estimate the NB from the ground vibration.

Images attached to this comment

tatsuki.washimi - 19:58 Sunday 19 February 2023 (24033)

I evaluated the noises from the OMC ground vibration for

The plots are listed at https://dac.icrr.u-tokyo.ac.jp/KAGRA/DAWG/Detchar/klog/klog24033.
From 1. & 2., this analysis looks fine except for the components that come from around 300Hz (yellow).