150 likes | 248 Views
HOWFS - 7/24/09. C. Baranec. Current Status Summary. Telescope simulator assembled HOWFS assembled and tested Alignment plan (CIN 636) is halfway finished Alignment feedback GUI developed and tested. Telescope Simulator. On-axis green laser Red laser fiber source
E N D
HOWFS - 7/24/09 C. Baranec
Current Status Summary • Telescope simulator assembled • HOWFS assembled and tested • Alignment plan (CIN 636) is halfway finished • Alignment feedback GUI developed and tested
Telescope Simulator • On-axis green laser • Red laser fiber source • On x-y-z translation stage • F/# ~15.7 (needs to be confirmed)
HOWFS Mechanical Pieces needed for WFS fabricated and assembled. Alignment feedback GUI developed and tested.
Demo… • Switch to remote desktop
Analysis/Discussion • Pupil ellipticity at 2.0% (1.70% desired for AOI of 10.5) • There are degrees of freedom to change the ellipticity • Pupil size at 9.645 mm (9.600 target) • We need to establish exact pupil sizes in the different modes before specifying collimator • Different focus measurement in different modes • Many possible contributors, will require investigation • CCD50 focus positions not yet established • Will require use of Pixelink camera
Flexure analysis • Flexure – ATS150 roll compliance is excellent. Still awaiting pitch compliance. Expect 0.1”/hour.Khanh’s description of flexure analysis however is confusing. What priority should we place on having him document this properly?
Outstanding tasks - summary • CCD50 readout modes – awaiting SciMeasure. • Test the camera modes – RN/DC (JR, ? days) • Finish alignment plan - (CB, 1 day) • Further alignment investigation – (CB, 1 day) • Amendments to alignment procedure – (CB, 1 day) • Internal flexure testing – (CB, 1 day) • Spec new optics – (CB, ½ day) • Alignment with the testbed – (CB, 2 days) • Plan for testing and incorporating new optics – (CB, 1 day) • Mechanical…
Mechanical Engineering Update Khahn expects to be finished working on the HOWFS/Acam by end of next week.
Schedule • Mechanical finished – next few weeks • SciMeasure modes - ? • Integration with testbed (no DM) – 3-4 weeks • Order testbed collimator/cylinder – after F/# established • Integration with DM in testbed – 6-10 weeks • Integration on PALM-AO bench – next year
Management Summary Total labor: • CB – ~8 days • JR – CCD testing modes, integration • ME – 1 week from Khanh Bui • AB – integration Equipment costs: • SciMeasure camera modes - ? • New optics (col, cyl) ~ $1000