20 July 2010 Development of VIRUS alignment and assembly fixtures
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Abstract
The Visible Integral-Field Replicable Unit Spectrograph (VIRUS) Instrument is a set of 150+ optical spectrographs to support observations for the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). We plan to use a production line assembly process to construct the large number of VIRUS units. This allows each sub-assembly of a VIRUS unit to be interchangeable amongst all other VIRUS units. A production line manufacturing procedure will enable various sub-assemblies to be built and tested in parallel. Examples of alignment and assembly fixtures required for the VIRUS manufacturing process include a camera mirror alignment system, a collimator structure assembly device, a collimator mirror mounting tool, and a grating alignment system. In this paper we describe the design of these fixtures and their importance in the VIRUS assembly process.
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Amanda D. Collins, Brian Vattiat, J. L. Marshall, Gary J. Hill, D. L. DePoy, Hanshin Lee, Richard D. Allen, Travis Prochaska, Steven Villanueva, "Development of VIRUS alignment and assembly fixtures", Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 773574 (20 July 2010); doi: 10.1117/12.857182; https://doi.org/10.1117/12.857182
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