Agenda/Minutes

Zoom Meeting

CRY+VIS Interface Meeting

Date: 2023/1/27 13:00-

Participants:

Acceptance check document

Status

• Type-A: Test of IP control with ACCs in IX. Offload of F0 in IY
• Type-B:
• Type-Bp: TF measurement of BF.
• Type-C: Monitoring of the OMMT1/2/OSTM suspensions in 1/30-2/1.

Other items

• Oplev:
• ACC: IP control in IX.
• Commissioning:
• Vacuum system: Investigation of broken ISPs. Vent of the OMC chamber on 1/30.
• Heater control: Adjustment in IY.
• TMS:

Discussion

VIS Meeting

Date: 2023/1/20 13:30-

Participants:

Summary Report

Type-A

• IP control using accelerometers.
  • Tested with the MPC for ITMX and the LPC for ITMY. The controls were successful. The noise spectra of the geophones became worse at frequencies higher than 1Hz.
  • We plan to test with the HPCs in EX and EY to compare.

Type-B

Type-Bp

• Ushiba-san measured TF from the seismometer on ground and the BF Damper in longitudinal.
• The calculation of the inter-calibration factor between the seismometer and the BF Damper LVDT is ongoing. There's no result yet.

Type-C

Electronics

Control

Schedule

• Type-A: IP control with ACCs.
• Type-B/Bp:
• Type-C: Monitoring of the OMMT1/2/OSTM suspensions.

Safety

Discussion

Travel Plans

(Date in Kamioka)

The week from 1/30

• Fabian will be away on Friday 3rd of February.

Next meeting

• 2023/2/3(FRI) 13:30-