Second try at a Bath interferometer. This time with a diode-laser, which has a larger output beam and results in more even illumination. Analysing the interferogram with OpenFringe and the Fourier-method shows our mirror is fairly spherical, 1/27th of a wave RMS from a sphere, but we have some figuring to do to get it paraboloidal.
Pages
Tags
8k 10k 20k Astro Blog bulb c++ california CAM CNC cutsim drop-cutter Electronics EMC2 fail gps gpsrun helsinki IOM IOMWorlds lathe machining-video messier MicroMagic ModelExpo moon mould N240 NordicCup noux octree opencamlib orienteering Photo pikanto plan python roadtrip run Travel USA video voronoi vtk waterlineCategories
- Articles (20)
- Asides (28)
- Astro (63)
- Blog (16)
- CNC (196)
- CAM (89)
- Drop-Cutter (17)
- OpenVoronoi (25)
- Waterline (14)
- EMC (26)
- Lathe (21)
- CAM (89)
- Computer (13)
- Cycling (17)
- Electronics (29)
- Fail (5)
- IOM Building (54)
- IOM Design (28)
- IOM Events (57)
- IOM Worlds 2007 (10)
- MicroMagic (14)
- Photo (39)
- PIKANTO (40)
- Programming (10)
- Research (33)
- Running (87)
- Half-marathon (5)
- Long-Run (11)
- Marathon (2)
- Sailing (16)
- shared links (133)
- Skiing (7)
- Travel (35)
- Uncategorized (15)
Archives
-
RSS Links
-
Spam Blocked
Post a Comment