As we might need feedback loops from the optical lever to stabilize the motion of the test mass of ETMX and ITMX, the simulink models were temporary modified to include a link from the optical lever to the PUM and UIM masses.
This was done by copying over what has been done for the beamsplitter optical lever :
FOUROSEM_STAGE_MASTER.mdl
was modified to include two oplev inputs going through the OLDAMP filter bank (copied from BS). cf FOUROSEM_STAGE_MASTER_before/after.png.FOUROSEM_STAGE_MASTER_oplevfeedback.mdl
QUAD_MASTER.mdl
was also copied and renamed QUAD_MASTER_oplevfeedback.mdl
and points to the new FOUROSEM_STAGE_MASTER_oplevfeedback.mdl
part for L1 and L2 stages (cf QUAD_MASTER_before/after.png)
A backup of the models h1sus{etmx/itmx}_Feb3rd2013.mdl
was made under /opt/rtcds/userapps/release/sus/h1/models
I missed a few alogs explaning some modifications on the models. so here's the current status :