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dc.creatorSoukup, I.M.en
dc.creatorBeno, J.Hen
dc.creatorHayes, R.Jen
dc.creatorHeisler, J.Ten
dc.creatorMock, J.Ren
dc.creatorMollison, N.Ten
dc.creatorGood, J.Men
dc.creatorHill, G.Jen
dc.creatorVattiat, B.Len
dc.creatorMurphy, J.Den
dc.creatorAnderson, S.Cen
dc.creatorBauer, S.Men
dc.creatoret. al.en
dc.date.accessioned2016-02-09T22:07:49Zen
dc.date.available2016-02-09T22:07:49Zen
dc.date.issued2010-07en
dc.identifierPN_344en
dc.identifierdoi:10.15781/T20H3Cen
dc.identifier.citationI.M. Soukup, J.H. Beno, R.J. Hayes, J.T. Heisler, J.R. Mock, N.T. Mollison, J.M. Good, G.J. Hill, B.L. Vattiat, J.D. Murphy, S.C. Anderson, S.M. Bauer, A. Kelz, M.M. Roth, and E.P. Fahrenthold, “Design of the fiber optic support system and fiber bundle accelerated life test for VIRUS,” paper no. 7735-180, Proc. SPIE Astronomical Telescopes and Instrumentation, San Diego, CA, USA, June 27 to July 2, 2010.en
dc.identifier.urihttp://hdl.handle.net/2152/33144en
dc.description.abstractThe quantity and length of optical fibers required for the Hobby-Eberly Telescope* Dark Energy eXperiment (HETDEX) create unique fiber handling challenges. For HETDEX‡, at least 33,600 fibers will transmit light from the focal surface of the telescope to an array of spectrographs making up the Visible Integral-Field Replicable Unit Spectrograph (VIRUS). Up to 96 Integral Field Unit (IFU) bundles, each containing 448 fibers, hang suspended from the telescope's moving tracker located more than 15 meters above the VIRUS instruments. A specialized mechanical system is being developed to support fiber optic assemblies onboard the telescope. The discrete behavior of 448 fibers within a conduit is also of primary concern. A life cycle test must be conducted to study fiber behavior and measure Focal Ratio Degradation (FRD) as a function of time. This paper focuses on the technical requirements and design of the HETDEX fiber optic support system, the electro-mechanical test apparatus for accelerated life testing of optical fiber assemblies. Results generated from the test will be of great interest to designers of robotic fiber handling systems for major telescopes. There is concern that friction, localized contact, entanglement, and excessive tension will be present within each IFU conduit and contribute to FRD. The test apparatus design utilizes six linear actuators to replicate the movement of the telescope over 65,000 accelerated cycles, simulating five years of actual operation.en
dc.language.isoenen
dc.relation.ispartofCEM Publicationsen
dc.subjectRotating Machine EM Launchen
dc.subjectCenter for Electromechanicsen
dc.subjectCEMen
dc.subjectHobby-Eberly Telescopeen
dc.subjectHETen
dc.subjectHETDEXen
dc.subjectUniversity of Texasen
dc.subjectMcDonald Observatoryen
dc.subjectfiber opticsen
dc.subjectIntegral Field Uniten
dc.subjectIFUen
dc.subjectFocal Ratio Degradationen
dc.subjectFRDen
dc.subjectVIRUSen
dc.subjectaccelerated life testen
dc.titleDesign of the fiber optic support system and fiber bundle accelerated life test for VIRUSen
dc.typeconference paperen
dc.description.departmentCenter for Electromechanicsen
dc.rights.restrictionopenen


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