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← Revision 8 as of 2020-02-14 16:26:18 ⇥
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| Deletions are marked like this. | Additions are marked like this. |
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| 2020/2/14 14:00 - | 2020/2/14 14:00 - 15:45 |
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| Participants: | Participants: Takahashi, Sato, Hirata, Aso, Fabian, Tanaka, Shoda, Okutomi, Lucia |
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| * TF Yaw fishing rod prototype testing | * Top Filter Yaw fishing rod prototype testing |
| Line 23: | Line 24: |
| * Transfer function measurements (L.Trozzo, T. Yamada, T. Yokozawa) * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12842|klog#12842]] * Control noise projection (T. Yamada) * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12861|klog#12861]] * Damping loop modifications (M. Nakano, T. Ushiba) * ETMY F0 GAS [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12860|klog#12860]] * ITMX MN OpLev [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12862|klog#12862]] * ITMY MN OpLev [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12862|klog#12862]] * ETMY TM yaw [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12937|klog#12937]] |
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* ETMY TM coil driver will be replaced to a normal high-power coil driver this evening. (K. Okutomi) |
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| * Measured the TF of the combiner itself and the TF from the actuator coil to the output of demodulator (AD630) with the low-pass filter. * Found an excess around 20Hz in the demodulator output. |
Agenda/Minutes of the VIS Meeting on 2020/2/14
2020/2/14 14:00 - 15:45
Participants: Takahashi, Sato, Hirata, Aso, Fabian, Tanaka, Shoda, Okutomi, Lucia
Progress report
Type-A
Past week report
- Top Filter Yaw fishing rod prototype testing
Test was done. Limit switch works normally. (200Mbyte)
- But the movement of the switch lever has periodic fluctuations. The cause will be investigated.
- Transfer function measurements (L.Trozzo, T. Yamada, T. Yokozawa)
- Control noise projection (T. Yamada)
- Damping loop modifications (M. Nakano, T. Ushiba)
ETMY F0 GAS klog#12860
ITMX MN OpLev klog#12862
ITMY MN OpLev klog#12862
ETMY TM yaw klog#12937
Plan for coming weeks
- ETMY TM coil driver will be replaced to a normal high-power coil driver this evening. (K. Okutomi)
Type B
Past week report
- Oplev box: I got information from Hagiwara-san and Ushiba-san.
- I will show the design I have.
Plan for coming weeks
Type-Bp
Past week report
Plan for coming weeks
OMMT & OSTM
Past week report
Plan for coming weeks
VIS electronics
Past week report
- Measured the TF of the combiner itself and the TF from the actuator coil to the output of demodulator (AD630) with the low-pass filter.
- Found an excess around 20Hz in the demodulator output.
Plan for coming weeks
Other site works
Safety
Discussion
- Wire gluing in PR3.
- C2C request in 2020FY.
Travel Plans
- Travel (Week of 2/17):
- Takahashi:
- Sato: 19-21(shift)
- Hirata: 20-22(shift)
- Shoda: 18-20(shift)
- Fujii:
- Tanaka:
- Travel (Week of 2/24):
- Takahashi:
- Sato:
- Hirata:
- Shoda:
- Fujii:
- Tanaka:
Next meeting
On 2020/2/21(Fri)