I recently made a new set of isolation filters level 2 for HAM3-ISI.
1- I tried them with the new Step_8_Performance_Analysis commissioning script. Spectra are attached*. The blend filters used are the new 250mHz blend filters **. There are some discrepancies between the expected isolation and the measurement. This is especially noticeable along Z. I am not sure why yet.
2 - I also tried the same configuration with the new 100mHz blend** engaged on X and Y. I compared the spectra measured then, with the ones measured earlier this week. Isolation loops show good performance. There is some amplification of motion between 10Hz and 50Hz. This is mainly noticeable along X.
* .pdf created with a new matlab script. I am still perfecting. I should be able to add it to Step_8 soon.
** svn revision 6187
I found out that one of my script mistakenly saved the Autoquack_Case Variable in the .mat Filter file causing the autoquack to always load the isolation filters, even when asked otherwise. This was corrected. All filters were re-loaded for HAM3-ISI.
I made sure the filters loaded in foton matched with the ones in the .mat filter file.
I took some quick performance measurements again today. The isolation results on Z looks way nicer now. RZ and RX are a bit suspicious but the measurements were taken in a noisy environnement.
I will be taking performance measurements on HAM3-ISI periodically over the weekend. This will alow me to get quiet-time results, and also to evaluate how consistant these results can be.
If everything goes smoothly, a long LZMP measurement will take over and finish by Monday early morning.
Attached are performance spectra taken during quiet time on Sunday.
the performance measured on RZ is still a bit off.
Note: The Y units on the first 6 pages is m/rtHz and should be nm/rtHz.