Reports until 14:58, Tuesday 02 October 2012
H1 SUS
stuart.aston@LIGO.ORG - posted 14:58, Tuesday 02 October 2012 (4353)
MC2 & PR2 (HSTS) Phase 3a M1-M1 un-damped TFs
[Stuart A, Betsy B and Travis S]

M1-M1 Matlab TFs were run in parallel yesterday evening, with damping loops OFF, for MC2 and PR2. This morning it was reported that the MC2 measurement had failed due to inability to extract frame data (and not a tripped watchdog as first thought).

However, the PR2 measurement was unaffected, with results available below (see 2012-10-01_H1SUSPR2_M1_ALL_TFs.pdf).

The MC2 TF was repeated again this morning, with no changes to the Matlab script, and it had completed by 2pm, generating the results available below (see 2012-10-02_H1SUSMC2_M1_ALL_TFs.pdf). 

(n.b. I suspect that trying to run two parallel Matlab TFs is pushing it a little far and so will line them up sequentially next time).  

Both sets of TFs are in good agreement with model predictions (blue traces).

For your viewing pleasure, I have also compared the Phase 3a H1 TFs with the equivalent L1 Phase 3a TFs in the final plot below (see allhstss_2012_10_02_Phase3a_MC2PR2_ALL_ZOOMED_TFs.pdf).

Each suspension looks to be freely suspended, and so we can now proceed to the B&K measurements.
Non-image files attached to this report