[Takahashi, Sato, Okutomi]

BF GAS LVDT calibration

• Sensor efficiency: (346 +/- 14) V/m (see attached figure)
• LVDT outputs are single-ended obtained with the Dsub=>BNC Converter (as reported in #2489)

Release Sensor check

• We confirmed that the Release Sensors work correctly
• The LEDs on the indicator box are lighted when a mass is sitting
• Cabling work of the Release Sensors on the stages of DP and BF is also completed

Adjustable range check with Fishing Rod

• Height of the keystone is adjustable only in the range of ~ 2 mm
  • We expected the range to be ~ 10 mm, so this is too small
  • We could NOT let the Dummy Payload (DP) sit on the Release Sensors with the Fishing Rod height adjustment
  • This could happen because blade springs on the Fishing Rod are designed for the optimal weight of the BF as ~ 50 kg, about a quarter of that of the DP
  • We'll add more blade springs parallel to the existing ones which are now in Mitaka

Photos >>> https://goo.gl/photos/aiRxGj4ty26uxgkx8