Matches in SemOpenAlex for { <https://semopenalex.org/work/W2350635638> ?p ?o ?g. }
Showing items 1 to 86 of
86
with 100 items per page.
- W2350635638 endingPage "255" @default.
- W2350635638 startingPage "246" @default.
- W2350635638 abstract "Thermal deformation is one of the key causes that degrade the performance of a large millimeter-wave antenna.It will affect the axis and focus of the antenna,increase the error of the reflector,and further result in not only the decrease of pointing and efficiency of the telescope but also the degradation of their long-term stability.Moreover,the diurnal motion of the sun will cause a variation of temperature difference of the pedestal structure,resulting in a tilt variation of the azimuth axis.In this paper,we present a study on the thermal deformation behavior of the Delingha 13.7 m millimeter-wave radio telescope by means of several methods.The relation between the defocus and the temperature difference of the antenna structure along the normal direction of the main reflector has been investigated.Consequently,the real-time focusing of the antenna has been realized by adaptive adjustment of the subreflector,thereby the antenna efficiency has been significantly improved.The pointing error as a function of the temperature difference across the reflector aperture has been studied and corrected.The thermal induced pedestal tilt variation is also one of the sources of the pointing error.By wrapping the tower legs with thermal insulation materials,the peak of the pedestal tilt variation is reduced from 7 to 3,and the related pointing error is reduced from 3 to 1.5." @default.
- W2350635638 created "2016-06-24" @default.
- W2350635638 creator A5006525911 @default.
- W2350635638 creator A5019912399 @default.
- W2350635638 creator A5062825234 @default.
- W2350635638 creator A5080103395 @default.
- W2350635638 creator A5088616073 @default.
- W2350635638 date "2014-05-01" @default.
- W2350635638 modified "2023-09-27" @default.
- W2350635638 title "Thermal Deformation of the Delingha 13.7 m Telescope" @default.
- W2350635638 hasPublicationYear "2014" @default.
- W2350635638 type Work @default.
- W2350635638 sameAs 2350635638 @default.
- W2350635638 citedByCount "0" @default.
- W2350635638 crossrefType "journal-article" @default.
- W2350635638 hasAuthorship W2350635638A5006525911 @default.
- W2350635638 hasAuthorship W2350635638A5019912399 @default.
- W2350635638 hasAuthorship W2350635638A5062825234 @default.
- W2350635638 hasAuthorship W2350635638A5080103395 @default.
- W2350635638 hasAuthorship W2350635638A5088616073 @default.
- W2350635638 hasConcept C120665830 @default.
- W2350635638 hasConcept C121332964 @default.
- W2350635638 hasConcept C127313418 @default.
- W2350635638 hasConcept C127413603 @default.
- W2350635638 hasConcept C153294291 @default.
- W2350635638 hasConcept C165205528 @default.
- W2350635638 hasConcept C175551986 @default.
- W2350635638 hasConcept C192562407 @default.
- W2350635638 hasConcept C204366326 @default.
- W2350635638 hasConcept C21822782 @default.
- W2350635638 hasConcept C24890656 @default.
- W2350635638 hasConcept C2778415886 @default.
- W2350635638 hasConcept C2779844322 @default.
- W2350635638 hasConcept C2780848835 @default.
- W2350635638 hasConcept C2982854487 @default.
- W2350635638 hasConcept C43117628 @default.
- W2350635638 hasConcept C66938386 @default.
- W2350635638 hasConcept C76155785 @default.
- W2350635638 hasConcept C78336883 @default.
- W2350635638 hasConceptScore W2350635638C120665830 @default.
- W2350635638 hasConceptScore W2350635638C121332964 @default.
- W2350635638 hasConceptScore W2350635638C127313418 @default.
- W2350635638 hasConceptScore W2350635638C127413603 @default.
- W2350635638 hasConceptScore W2350635638C153294291 @default.
- W2350635638 hasConceptScore W2350635638C165205528 @default.
- W2350635638 hasConceptScore W2350635638C175551986 @default.
- W2350635638 hasConceptScore W2350635638C192562407 @default.
- W2350635638 hasConceptScore W2350635638C204366326 @default.
- W2350635638 hasConceptScore W2350635638C21822782 @default.
- W2350635638 hasConceptScore W2350635638C24890656 @default.
- W2350635638 hasConceptScore W2350635638C2778415886 @default.
- W2350635638 hasConceptScore W2350635638C2779844322 @default.
- W2350635638 hasConceptScore W2350635638C2780848835 @default.
- W2350635638 hasConceptScore W2350635638C2982854487 @default.
- W2350635638 hasConceptScore W2350635638C43117628 @default.
- W2350635638 hasConceptScore W2350635638C66938386 @default.
- W2350635638 hasConceptScore W2350635638C76155785 @default.
- W2350635638 hasConceptScore W2350635638C78336883 @default.
- W2350635638 hasOpenAccess W2350635638 @default.
- W2350635638 hasRelatedWork W1533146595 @default.
- W2350635638 hasRelatedWork W158109793 @default.
- W2350635638 hasRelatedWork W1628802481 @default.
- W2350635638 hasRelatedWork W1974112107 @default.
- W2350635638 hasRelatedWork W2012734475 @default.
- W2350635638 hasRelatedWork W2017803638 @default.
- W2350635638 hasRelatedWork W2020488708 @default.
- W2350635638 hasRelatedWork W2025033549 @default.
- W2350635638 hasRelatedWork W2063983429 @default.
- W2350635638 hasRelatedWork W2065561113 @default.
- W2350635638 hasRelatedWork W2091868030 @default.
- W2350635638 hasRelatedWork W2094637849 @default.
- W2350635638 hasRelatedWork W2164328067 @default.
- W2350635638 hasRelatedWork W2168871001 @default.
- W2350635638 hasRelatedWork W2226097506 @default.
- W2350635638 hasRelatedWork W2337182410 @default.
- W2350635638 hasRelatedWork W2382843177 @default.
- W2350635638 hasRelatedWork W3134884407 @default.
- W2350635638 hasRelatedWork W3183586943 @default.
- W2350635638 hasRelatedWork W56018018 @default.
- W2350635638 hasVolume "55" @default.
- W2350635638 isParatext "false" @default.
- W2350635638 isRetracted "false" @default.
- W2350635638 magId "2350635638" @default.
- W2350635638 workType "article" @default.