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Deflectometry-based thermal vacuum testing for a pneumatic terahertz antenna

dc.contributor.authorQuach, H.
dc.contributor.authorEsparza, M.
dc.contributor.authorKang, H.
dc.contributor.authorChandra, A.
dc.contributor.authorChoi, H.
dc.contributor.authorBerkson, J.
dc.contributor.authorKarrfalt, K.
dc.contributor.authorSirsi, S.
dc.contributor.authorTakashima, Y.
dc.contributor.authorPalisoc, A.
dc.contributor.authorArenberg, J.W.
dc.contributor.authorMarshall, K.G.
dc.contributor.authorGlynn, C.S.
dc.contributor.authorGodinez, S.M.
dc.contributor.authorTafoya, M.
dc.contributor.authorWalker, C.
dc.contributor.authord’Aubigny, C.D.
dc.contributor.authorKim, D.
dc.date.accessioned2021-11-09T22:23:33Z
dc.date.available2021-11-09T22:23:33Z
dc.date.issued2021
dc.identifier.citationQuach, H., Esparza, M., Kang, H., Chandra, A., Choi, H., Berkson, J., Karrfalt, K., Sirsi, S., Takashima, Y., Palisoc, A., Arenberg, J. W., Marshall, K. G., Glynn, C. S., Godinez, S. M., Tafoya, M., Walker, C., d’Aubigny, C. D., & Kim, D. (2021). Deflectometry-based thermal vacuum testing for a pneumatic terahertz antenna. Proceedings of SPIE - The International Society for Optical Engineering.
dc.identifier.isbn9781510644786
dc.identifier.issn0277-786X
dc.identifier.doi10.1117/12.2594902
dc.identifier.urihttp://hdl.handle.net/10150/662300
dc.description.abstractThe Orbiting Astronomical Satellite for Investigating Stellar Systems (OASIS) is a 20-meter class proposed space terahertz observatory supported by an inflatable membrane architecture. To measure 150 mm and 1m models of the A1 reflective membrane antenna, two deflectometry configurations were designed. The smaller assembly and its corresponding deflectometer were simulated, built in our laboratory, and produce a reconstructable signal for clocked measurements of the highly-sloped pneumatic surface. We use non-sequential raytracing simulation to bound the maximum contributions of all shape errors and suggest the N-Rotations algorithm to remove the remaining radially asymmetric errors. Then, the 1m prototype assembly was tested inside a thermal vacuum chamber (TVAC). Differential deflectometry measurements tracked the 1m surface shape changes as it was subjected to a variety of environmental setpoints, cycled between three inflation gases, and also during controlled puncture. We summarize our development and results for absolute measurements as well as from TVAC testing. © 2021 SPIE.
dc.language.isoen
dc.publisherSPIE
dc.rightsCopyright © 2021 SPIE.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectDeflectometry
dc.subjectLarge aperture metrology
dc.subjectMembrane inflatable mirrors
dc.subjectTVAC
dc.titleDeflectometry-based thermal vacuum testing for a pneumatic terahertz antenna
dc.typeProceedings
dc.typetext
dc.contributor.departmentWyant College of Optical Sciences, University of Arizona
dc.contributor.departmentLarge Binocular Telescope Observatory, University of Arizona
dc.contributor.departmentDepartment of Astronomy, University of Arizona
dc.contributor.departmentSteward Observatory, University of Arizonaa
dc.contributor.departmentLunar and Planetary Laboratory, University of Arizona
dc.identifier.journalProceedings of SPIE - The International Society for Optical Engineering
dc.description.noteImmediate access
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
dc.eprint.versionFinal published version
dc.source.journaltitleProceedings of SPIE - The International Society for Optical Engineering
refterms.dateFOA2021-11-09T22:23:33Z


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