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Reports until 19:27, Wednesday 05 August 2026
H1 SUS (CDS)
oli.patane@LIGO.ORG - posted 19:27, Wednesday 05 August 2026 (91426)
ZM4 / ZM5 COILOUTF AntiLP filter updated

Earlier I took ZM4/ZM5 transfer function measurements with the new coil driver chassis but with the old AntiLP coil driver conpensation filters still installed in COILOUTF. I now went and took another set of transfer functions on ZM4 with the new set of coil driver compensation filters (since ZM5 is broke(91425), and it does look like these are giving us the response we want (L,P,Y). There is still a small discrepancy between the magnitudes, but it's about half as much as what it was before. I'll process these new measurements tomorrow.

I've also installed these filters and loaded them in for ZM5 for when we swap out a new modified coil driver tomorrow.

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