Reports until 22:25, Monday 28 August 2017
H1 ISC
thomas.vo@LIGO.ORG - posted 22:25, Monday 28 August 2017 (38410)
Swap DARM control to ITMX

Sheila, TVo

We successfully swapped DARM control to ITMX.

In this configuration the TMX_DRIVE_ALIGN_GAIN = 150 compared to ETMY_DRIVEALIGN_GAIN = 30 is roughly the right actuation strengths, the OL DARM TF is attached and is roughly unchanged.

 This swap allows us to do a charge measurement on ETMY which Sheila will post about in a separate aLOG.  This did not change the mystery low frequency noise.

Images attached to this report