Here are preliminary pass/fail test results for the modified HAM-A chassis. In 84454 we found out we hadn't done the modifications yet that had been outlined in E2400048.
First I have the results for the newly installed ZM4 and ZM5 coil driver chassis, then the spares, which don't have final results since they aren't assigned to AOSEMs or BOSEMs yet, then the results for the BHD electronics, which aren't being used but have already been installed in the Mechanical Room Mezzanine.
When only one channel is listed as bad, they could actually have an issue or it could just be an error while taking the measurement for that chanel. When multiple channels are bad, that seems more like a chassis problem.
Scripts used to run all of these are in /ligo/svncommon/SusSVN/sus/trunk/electronicstesting/lho_electronics_testing/coildriver/ECR_E2400048/Scripts/, and final results for those who have them are found in /ligo/svncommon/SusSVN/sus/trunk/electronicstesting/lho_electronics_testing/coildriver/ECR_E2400048/Results/.
| Rack - Height | SUS Stage OSEMs | S/N | OSEM Type | Date tested | OutImp (kOhm) |
Data looking good?
|
Comments |
|---|---|---|---|---|---|---|---|
| ZM4, ZM5 | |||||||
| SUS-C8, U12 | ZM4 | S2001194 | BOSEM | 2026-01-29 | 0p1 | yes | |
| SUS-C8, U11 | ZM5 | S2001198 | BOSEM | 2026-01-30 | 0p1 | CH1-4 bad |
first pole doesn't get close to 0 phase until we change 0.5 to above 20 Hz
|
| Spares | |||||||
| -- | SPARE | S2001202 | -- | 2026-01-29 | 0p1 | yes | |
| -- | SPARE | S2001204 | -- | 2026-01-29 | 0p1 | yes | |
| -- | SPARE | S2401019 | -- | 2026-01-29 | 0p1 | yes | |
| -- | SPARE | S2401020 | -- | 2026-01-29 | 0p1 | yes | |
| -- | SPARE | S2001197 | -- | 2026-01-30 | 0p1 | CH2 bad | |
| -- | SPARE | S1200609 | -- | 2026-02-02 | 1p2 |
all go up above 1000Hz
|
|
| -- | SPARE | S1106046 | -- | 2026-02-09 | 1p2 |
all go up above 1000Hz
|
|
| -- | SPARE | S2500410 | -- | 2025-10-02 | 1p2 | yes | |
| -- | SPARE | S2500412 | -- | 2025-10-02 | 1p2 | yes | |
| -- | SPARE | S2500413 | -- | 2025-10-02 | 1p2 | yes | |
|
Installed for BHD
|
|||||||
| SUS-M2, U42 | OM0 M1 F1F2F3SD | S2001203 | BOSEM | 2026-01-30 | 0p1 | CH1 bad | |
| SUS-M2, U41 | OM0 M1 LFRT | S2001201 | BOSEM | 2026-01-30 | 0p1 | CH1,CH4 bad | |
| SUS-M2, U40 | OM0 M3 | S2001181 | AOSEM | 2026-02-02 | 1p2 | CH3 bad | |
| SUS-M2, U38 | OBS M1 F1F2F3SD | S2001200 | BOSEM | 2026-01-30 | 0p1 | yes | |
| SUS-M2, U37 | OBS M1 LFRT | S2001199 | BOSEM | 2026-01-30 | 0p1 | yes | |
| SUS-M2, U35 | AM1 M1 | S2001179 | BOSEM | 2026-02-09 | 1p2 | yes | |
| SUS-M2, U34 | AM2 M1 | S2001178 | BOSEM | 2026-02-02 | 1p2 | maybe? CH4 bad above 3000Hz | |
| SUS-M2, U32 | OMCAB M1 H1V1H2V2 | S2001195 | AOSEM | 2026-01-30 | 0p1 | yes | |
| SUS-M2, U31 | OMCAB M1 H3V3 | S2001196 | AOSEM | 2026-01-30 | 0p1 | yes | |
| SUS-M2, U29 | OMA1 M1 | S2001177 | BOSEM | 2026-02-09 | 1p2 | yes | |
| SUS-M2, U27 | OMB1 M1 | S2001176 | BOSEM | 2026-02-09 | 1p2 | yes | |
| SUS-M2, U24 | OMA2 M1 | S1200608 | BOSEM | 2026-02-09 | 1p2 | ?? CH1-4 bad above 3000Hz | |
| SUS-M2, U23 | OMB2 M1 | S1201155 | BOSEM | 2026-02-02 | 1p2 | ?? CH1-4 bad above 3000Hz | |
| SUS-M2, U21 | OMA3 M1 | S1201162 | BOSEM | 2026-02-09 | 1p2 | ?? CH1-4 bad above 3000Hz | |
| SUS-M2, U19 | OMB3 M1 | S1201165 | BOSEM | 2026-02-02 | 1p2 | ?? CH1-4 bad above 3000Hz |
