Minutes BWS Upgrade: Electro-Mechanical Design Meeting #3 -- 7th August 2015 --
Participants: Alexander, Pirre-Jean, Paolo, Juan, Jonathan, Dimitry
Agenda (http://indico.cern.ch/event/436415/
) :
1. Communications
2. Follow-up Open Actions
3. Update motor selection (D.Gudkov)
- Standard motors are ordered from Alxion and Kollmorgen
- Custom motor is ordered from Alxion
- Design of disc mount was shown
- Run out (wobbling) +- 50 um 70 % of light lost (given by Zemax simulations)
- Metallic disc under construction for LASER darkening
- Disc has thicker mounting part in the center
- Accuracy newly defined: flatness below 20 um (corresponding to 10 % light intensity loss)
4. Test measurements (D.Gudkov)
- 30000 test are done
- Temperature stable after 225 minutes at 52.5 degree measured at the outside of the stator housing.
- Next step : one week (33) more aging test
- Question ask: what need to be done be fore end of the year
- Proposal, if needed to make some tests in parallel
5. AOB
Action |
Asigned to: |
Next meeting 21.08. 15:30: Electrical test result from aging test of BWS calibration system |
Bernd |
Follow up design of mask with alignment holes |
Planning proposal for scanner tests |
Section 4 PSB also to be used by SEM, consultation with Federico needed |
Paolo |
Topic revision: r2 - 2015-08-24
- unknown