Platform motions
Oct07
Intro:
The platform will move because of temperature,
tiedown tensions, weight distribution, and oscillations. We can measure
the platform motion using theodolites (surveys), tilt sensors in the
dome, distomats, tiedown tension, and pointing error. The links
below show some of these measurements. The links are also available
through the optics, pointing, td hardware links.
Topics
Focus
curves measured by tracking sources and moving the platform.
Pitch,
roll, and focus
using
theodolite and tilt sensors to compute the tiedown correction.
Platform
oscillations
Surveying
the
dome position from AO9
Tilt
sensor measurements(from dome)
Individual measurements
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