Reports until 18:49, Monday 25 November 2013
H1 SUS
arnaud.pele@LIGO.ORG - posted 18:49, Monday 25 November 2013 (8725)
SUS Chamber closeout HAUX/Tip-Tilts/TMSX TFs

[Jeff K Arnaud P]

Quick summary of TFs taken today on HAUX (IM1 IM2 IM3 IM4), TIp Tilts (RM1 RM2) and TMSX, following 8709. Quads and HSTS are (almost) done and will be processed tomorrow.

HAUX (1st pdf)

IMs are consistent from one to an other, but are slightly different from the model. Looks good though, probably just a model issue.

HTTS (2nd pdf)

-RM1 has its resonances matching the model. RM2 has an extra resonnance in Yaw.
-RM1 and RM2 do not roll off the same way, and it might be due to the eddy current dampers, poorly tuned.
-Calibration between both sites is still suspect, because of confusion in the electronics chain. Transconductance of HAM-A driver used in the script : 9.6 [mA/V], and 20 / 2^16 [Vpp / ct] for the 16 bit DAC
 

It may be good enough for now, but we should keep an eye on those next time the chamber will be opened.

TMSX (3rd pdf)

TMSX looks fine, and in good agreement with the model and the measurement before the centering of the osems and balancing of the table (cf alog 8705).

Data and scripts will be commited under the svn tomorrow.

Non-image files attached to this report