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Agenda/Minutes of the VIS Meeting on 2020/3/13
2020/3/13 14:00 -
Participants: Takahashi, Sato, Ishizaki, Hirata, Shoda, Fujii, Fabian, Lucia, Tanaka
Progress report
Type-A
Past week report
- Sensor correction calibration of ITMY was wrong. IFO Feedback signal on the TM was reduced by about 5 times after the calibration factor was fixed.
Plan for coming weeks
Type B
Past week report
I wrote a document with guidelines for the design the oplev boxes: JGW-E2011540-v1.
- It's intended for Mirapro.
- Some information still needs to be included.
- Please give me feedback in case you feel like.
- A 3D-CAD is included.
I measured transfer functions from some BS DoF to DARM: klog entries 13463 and 13477.
- Projections of noise onto DARM not done yet.
Plan for coming weeks
Type-Bp
Past week report
Yokozawa-san and Fabian measured the TF from PRs to DARM. --> Noise projection on noisebudgetter.
- PR2 and PR3 oplev went away due to the large earthquake.
Plan for coming weeks
Type-C
Past week report
Plan for coming weeks
VIS electronics
Past week report
- Measured the TF of AD630 with grounded #14 pin. 30dB reduction was achived.
Plan for coming weeks
- Design of the filters to obtain 100dB reduction at 10Hz.
Safety
Discussion
- ACC development: Response of the geophone is not flat at the low frequency. Improved ACCs have advantage.
Travel Plans
- Travel (Week of 3/16):
- Takahashi: 16-18
- Sato: 17-18 (Kashiwa)
- Hirata:
- Shoda:
- Fujii:
- Tanaka:
- Travel (Week of 3/23):
- Takahashi:
- Sato: 23-25 (Shift)
- Hirata: 24-26 (Shift)
- Shoda: 22-24 (Shift)
- Fujii:
- Tanaka:
Next meeting
On 2020/3/27(Fri)