Technical Meeting #4: Optomechnical and thermal conceptual design, derived requirements
This meeting took place on Friday 21 May at 14:00. Attendees: JSY, MF, ADR, CAH, DFB, EBS, XS, DMAW
Agenda
- Discussion of results from the following high priority tasks
- ADR & CAH: Layout and tolerancing of transmissive optical system
- ADR & CAH: Use tolerancing results to assign image quality and stability budgets by component
- XS: Initial studies of achievable stability
- MF: Thermal analysis of camera in box
- Next steps
Discussion Slides
Task Assignments
New tasks are in red.
Completed Tasks
- ADR & CAH: Layout and tolerancing of transmissive optical system
- ADR & CAH: Use tolerancing results to assign image quality and stability budgets by component
- XS: Initial studies of achievable stability
- Replaced by new task below
- MF: Thermal analysis of camera in box
High Priority Tasks
- MF: Determine minimum size of camera enclosure
- MF & ADR: Use camera enclosure size to refine reflective and transmissive layouts
- ADR: Final layout/stability budgets for refined layouts: one reflective and one transmissive
- XS: Look at drawing of Nasmyth table and support structure, advise JSY of follow-up queries
- XS: Conceptual design of unadjustable dichroic mount
- XS: Model effect of temperature gradient on stability of dichroic in above mount
- DFB: Write down initial latency and frame rate requirements with brief justification
- Calculate for 40Hz bandwidth requirement as well as 50Hz goal
- JSY: Define software components and inter-component dataflows (hardware-independent)
- JSY: Ask Chris Mayer for field rotation rate
Medium Priority Tasks
- MF: Thermal modelling of camera enclosure to refine derived requirements
- MF: Look for missing derived requirements using N^2 diagram
- TBA: Calculate seasonal focus change
- EBS: Look for 1U or 2U computers with 2 PCI slots drawing < 150W
Low Priority Tasks
- ADR: Dialogue with OAP manufacturer re referencing to optic axis of finished component
Next Meetings
TBD