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Size: 2508
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← Revision 29 as of 2018-11-22 09:41:33 ⇥
Size: 2022
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
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| =X-end PCal= | = X-end PCal = |
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| * TxPD1 repairing * THS4631 seems broken * Asked Bin-Hua to bring parts. * OFS2 closed loop functionality repairing * Relay is suspected. Will confirm using tester. * Asked Bin-Hua to bring parts. * Interlock equipment * Switch is equipped to modules. * Connector between chassis and laser system is repaired. * Unstable D-sub connection at Tx module * Some connectors are dead. * Cable arrangement * Laser remote control * PC will be setup. * Same script as in Y-end may be applicable. |
Urgent * Excitation port noise 2nd-urgent * Stray light * Tx PDs detect light even if the AOM input is almost 0. * Put dumpers ~11/3 first test to inject PCal laser to the X-end test mass * Rx module alignment * QPD alignment * OL/CL TF measurement * OFS board gain seems strange. Saturation around 13 dB. * Strange bump in AA/AI (~6 kHz) ~X-arm commissioning line injection |
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| * Picomoter setting * Periscope install * Equip picomoters to the mirror * Wall between duct and modules * Ordered. Will arrive Kamioka on 9/10. * Set duct and wall. * Green laser preparation * Power supplies are OK. * Waiting for new post. * Rx module alignment * TCam has to come back. * PC has to be re-installed. * AOM current * Sometimes over 0.5 V ? * Stray light * Put dumpers * Borrowing 2 from Toyama univ. They has to be returned on 9/19 or 20. * WSK measurement * Alignment of the last 2 mirrors (Accidentally moved) * Modification is required from LIGO's procedure. * Code for WSK measurement analysis * To be delivered on 9/19 or 20. * May have to prepare voltage calibrator to calibrate readout by DGS. * DAC noise problem * With DAC cable, very large noise and offset are observed. It may be difficult to set working point. * Take care about grounding * OL/CL TF measurement |
* Preparation for X-arm commissioning calibration line injection * Guardian ~O3 |
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| * DGS part seems not noisy, but cause large noise when connected to the OFS. * Peak stability test * Shot noise * Offset input noise |
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* Unstable D-sub connection at Tx module * Some connectors are dead. |
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| * Operation tool preparation Bonus work * AOM current * Sometimes over 0.5 V ? * Take care about grounding Pre-categorization |
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| =Laser power calibration setting in Toyama Univ.= | = Y-end PCal = * Periscope re-installation = Laser power calibration setting in Toyama Univ. = |
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| ~Y-arm commissioning * Prepare cross calibration setup and calibrate an integrating sphere |
Detailed task list of PCal is listed here.
X-end PCal
Urgent
- Excitation port noise
2nd-urgent
- Stray light
- Tx PDs detect light even if the AOM input is almost 0.
- Put dumpers
~11/3 first test to inject PCal laser to the X-end test mass
- Rx module alignment
- QPD alignment
- OL/CL TF measurement
- OFS board gain seems strange. Saturation around 13 dB.
- Strange bump in AA/AI (~6 kHz)
~X-arm commissioning line injection
- BPM test
- Preparation for X-arm commissioning calibration line injection
- Guardian
~O3
- RPN measurement
- Laser noise measurement
- Harmonics noise measurement
- VGA noise measurement
- Excitation noise measurement
- DGS part seems not noisy, but cause large noise when connected to the OFS.
- Peak stability test
- Shot noise
- Offset input noise
- Noise model
- Unstable D-sub connection at Tx module
- Some connectors are dead.
- OFS upgrade
- Operation tool preparation
Bonus work
- AOM current
- Sometimes over 0.5 V ?
- Take care about grounding
Pre-categorization
Y-end PCal
- Periscope re-installation
Laser power calibration setting in Toyama Univ.
~Y-arm commissioning
- Prepare cross calibration setup and calibrate an integrating sphere