CPA / Endwall activities Overview RU Endwall up on Feb 23 Ground - - PowerPoint PPT Presentation
CPA / Endwall activities Overview RU Endwall up on Feb 23 Ground plane fjller on CPA installation in week of Mar 5 Bumper installation week of Mar 5 Small beamplug endwall QA Electrical connection and integration of CPA system
Overview
installation in week of Mar 5
integration of CPA system including QA
50.8cm 53.3cm 54.7cm 108.8cm 228.7cm 229.8cm
installation:
between the groundplanes of FC and the fjller pieces
with clamps on a table the fjller pieces into place (thank you Manrico)
the CPA (US and DS) to avoid the Endwall touching the CPA.
used epoxy to attach it to CPA , taped to keep in place while epoxy is drying
Removed the tapes for fixing the bumper position Epoxied the front surface of the bumper The clean profile is in position
Points to measure Expected value (Mohm) FC1 to beam plug ∼56 Gohm FC1 to FC 58 ∼8 Gohm Electronic circuit of the full beamplug endwall
→ Resistances at check points are well agree with the expected values
after they are in place. Heng-Ye and I will do some QA measurements of the fully integrated CPA system
View of height of bumper with profjle removed Bumper
Bottom edge of CPA Distance from the bottom edge of the
from the thick part not the fjeld shaping strips Height of
shown
Please confjrm there is nothing mounted on the EW at this height. The bumper can be mounted up o 10cm higher if necessary. View of position of bumper
verifjcation
Notches
Credit: Francesca
Notches
Credit: Francesca
Position Measure Resistance (Mohm) Expected Resistance (Mohm) Cathode to profile1 346 349.2 ± 1.6 profile1 to profile2 442 448 ± 4 profile2 to profile3 496 500 ± 5 cathode to FSS 190 194.0 ± 1.4 FSS to profile1 309 307 ± 2
[BR-bottom FC]
Ref: https://docs.dunescience.org/cgi-bin/private/RetrieveFile?docid=6401&filename=measurement-comparison.pdf&version=1% 20%20p