Reports until 07:51, Thursday 26 September 2024
X1 SUS (SUS)
ryan.crouch@LIGO.ORG - posted 07:51, Thursday 26 September 2024 - last comment - 08:21, Thursday 26 September 2024(80296)
Comparison of all fully assembled A+ HRTS transfer functions

A follow up to alog78711 with all of the 11/12 completed assemblies.

I made 3 comparison plots; all suspensions(contains the legend on the 1st page, measurement date to corresponding sus s/n), both of the suspended versions, all 9 of the freestanding versions (there is 1 left to be finished that we're waiting on a part rework/repair).

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Comments related to this report
rahul.kumar@LIGO.ORG - 08:21, Thursday 26 September 2024 (80302)

We are still working on fine tuning the results of two HRTS suspension, measured on 08_30_2100 and 09_05_1800 (dark green and purple line in the plot shown here), especially for V and R dof. The magnitude (page 03 and 04 here) is lower than the rest of the batch and there is also some cross coupling from Rdof.