I had a look at the OAF model today.
Somehow, the screens that we had weren't matching up with the model. It was as if the screens were a few versions old. Anyhow, I found the correct screens in /userapps/oaf/common/medm, and copied them into the proper place for us, /userapps/isc/c1/medm/c1oaf. Now the screens seem all good.
I also added 2 PCIE links between the OAF and the SUS models. I want to be able to send signals to the PRM's pitch and yaw. I compiled and restarted both the oaf model and the sus model.
The OAF model isn't running right now (it's got the NO SYNC error), but since it's not something that we need for tonight, I'll fix it in the morning.
My thought for trying out the OAF is to look at the coherence between seismic motion and the POP DC QPD when the PRMI is locked (no arms). I assume that the PRM is already handled in terms of angular damping (local and oplev), so the motion will be primarily from the folding mirrors. Then, if I can feedforward the seismometer signal to the PRM to compensate for the folding mirrors' motion, I can use the DC QPD as a monitor to make sure it's working when we're PRMI-only locked, or at low recycling gain with the arms. But, since I'm not actually using the QPD signal, this will be independent of the arm power increase, so should just keep working.
Anyhow, that's what my game plan is tomorrow for FF. Right now the T-240 is settling out from its move today, and the auto-zero after the move. |