Abstract
LAMOST is a reflecting Schmidt telescope with an active collector of 5.72 by 4.40 metres and a 6.67 by 6.05 metre primary, combining a large aperture with a wide field of view and a focal plane carrying up to 4,000 fibres – tens of thousands of spectra a night from objects down to twentieth magnitude. Light reflects from Ma to Mb onto that focal plane, where the fibres have to be positioned accurately enough to catch it. The upper stage's sub-mirror sits on 37 active force actuators and defining points tied to three lower displacement actuators, and has to be held in horizontal alignment with the mirror truss support structure. This talk covers the laser tracker survey that made that possible: 75 working points on Ma, collected and analysed in Spatial Analyzer, and what the high-axis and horizontal-rotation data showed.
Also published as CMSJ-05-1-01, The Journal of the CMSC, Volume 5, Number 1 (Spring 2010).
Cite this paper
Lansun Stephanie Chang. FARO Technologies, Inc. Presented at the Coordinate Metrology Systems Conference 2009, Louisville, Kentucky, July 20-24, 2009. Coordinate Metrology Society, reference CMS-2009-002.