Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
  Euclid warm testing of the near-infrared optical assembly using a unique combination of CGH interferometry and tactile precision measurements

Grupp, F., Kaminski, J., Bodendorf, C., Geis, N., Penka, D., & Bender, R. (2019). Euclid warm testing of the near-infrared optical assembly using a unique combination of CGH interferometry and tactile precision measurements. In T. B. Hull, K. Dae Wook, & P. Hallibert (Eds.), Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems II. doi:10.1117/12.2527723.

Item is

Basisdaten

einblenden: ausblenden:
Genre: Konferenzbeitrag

Dateien

einblenden: Dateien
ausblenden: Dateien
:
Euclid warm testing of the near-infrared optical assembly using a unique combination of CGH interferometry and tactile precision measurements.pdf (beliebiger Volltext), 13MB
 
Datei-Permalink:
-
Name:
Euclid warm testing of the near-infrared optical assembly using a unique combination of CGH interferometry and tactile precision measurements.pdf
Beschreibung:
-
OA-Status:
Sichtbarkeit:
Privat
MIME-Typ / Prüfsumme:
application/pdf
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
Lizenz:
-

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Grupp, Frank1, Autor           
Kaminski, Jennifer1, Autor           
Bodendorf, Christof1, Autor           
Geis, Norbert2, Autor           
Penka, Daniela1, Autor           
Bender, Ralf1, Autor           
Affiliations:
1Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society, ou_159895              
2Infrared and Submillimeter Astronomy, MPI for Extraterrestrial Physics, Max Planck Society, ou_159889              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: The ESA Cosmic Vision “Euclid" mission will conduct a 6-years long survey of 15,000 square degrees of the sky to a look-back time of 10 billion years, with the aim of characterizing the matter-energy content of the Universe and to better understand the dark energy responsible for the acceleration of its expansion. The Euclid payload consists of a wide field 1.2m aperture telescope equipped with two instruments that simultaneously observe patches of < 0.5 square degree on the sky: the visible light camera (VIS, and the near-infrared spectrometer and photometer (NISP). These two instruments are separated by a dichroic plate splitting the beams around a wavelength of 920 nm. The NISP large field of view (FoV) - larger than the full moon disk - together with high demands on the optical performance and strong requirements on in-flight stability, lead to very tight and challenging specifications on the alignment and positioning of the NISP optical assembly (NI-OA). This required an extensive tolerance analysis at system level during the design phase. The hardware is now completed and went through all optical tests at assembly level. In this paper we present the strategy and results of the warm optical test. In this test, we measured the length of the optical axis behind the NI-OA - or back focal distance (BFD) - using a novel combination of computer generated hologram (CGH) and a coordinate measuring machine (CMM). The agreement between the predicted and measured BFD values is excellent, within 1 μm. In addition, we measured the system wave-front error under warm conditions in double path and found diffraction limited performance on- and off-axis all over the field of view. These warm tests validated the anticipated performance of the NI-OA and allowed us to prepare the time-consuming and risky cryogenic tests with a high level of confidence.

Details

einblenden:
ausblenden:
Sprache(n):
 Datum: 2019-09-16
 Publikationsstatus: Online veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1117/12.2527723
Anderer: LOCALID: 3230377
 Art des Abschluß: -

Veranstaltung

einblenden:
ausblenden:
Titel: SPIE OPTICAL ENGINEERING + APPLICATIONS
Veranstaltungsort: San Diego, CA
Start-/Enddatum: 2019-08-11 - 2019-08-15

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems II
Genre der Quelle: Konferenzband
 Urheber:
Hull, Tony B., Herausgeber
Dae Wook, Kim, Herausgeber
Hallibert, Pascal , Herausgeber
Affiliations:
-
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 11116 Artikelnummer: 1111618 Start- / Endseite: - Identifikator: -

Quelle 2

einblenden:
ausblenden:
Titel: Proceedings of SPIE
Genre der Quelle: Reihe
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: SPIE-INT SOC OPTICAL ENGINEERING
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: - Identifikator: ISSN: 0277-786X