Method for studying the effects of thermal deformations on optical systems for space application (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Method for studying the effects of thermal deformations on optical systems for space application (Articolo in rivista) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

Alternative label

• E. Segato, V. Da Deppo, S. Debei, G. Naletto, G. Cremonese, E. Flamini (2011)
  Method for studying the effects of thermal deformations on optical systems for space application
  in Applied optics
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• E. Segato, V. Da Deppo, S. Debei, G. Naletto, G. Cremonese, E. Flamini (literal)

Pagina inizio

• 2836 (literal)

Pagina fine

• 2845 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 50 (literal)

Rivista

• Applied optics (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• [ 1 ] Univ Padua, Ctr Studies & Activ Space G Colombo, I-35131 Padua, Italy [ 2 ] Inst Photon & Nanotechnol, CNR, Unita Org Supporto, I-35131 Padua, Italy [ 3 ] Univ Padua, Dept Mech Engn, I-35131 Padua, Italy [ 4 ] Univ Padua, Dept Informat Engn, I-35131 Padua, Italy [ 5 ] Osserv Astron Padova, Natl Inst Astrophys, I-35122 Padua, Italy [ 6 ] Italian Space Agcy, I-00198 Rome, Italy (literal)

Titolo

• Method for studying the effects of thermal deformations on optical systems for space application (literal)

Abstract

• In this paper, the results of the thermo-elastic analysis performed on the stereo channel of the imaging system Integrated Observatory System for the BepiColombo European Space Agency mission to Mercury are presented. The aim of the work is to determine the effects of ambient parameter variations on the equipment performance; the optical performance is changing during the mission lifetime primarily because of the optics misalignments and deformations induced by temperature variations. The camera optics and their mountings are modeled and processed by a thermo-mechanical finite element model (FEM) program, which reproduces the expected optics and structure thermo-elastic deformations in the instrument foreseen operative temperature range, i.e., between -20 degrees C and 30 degrees C. The FEM outputs are elaborated using a MATLAB optimization routine: an algorithm based on nonlinear least square data fitting is adopted to determine the surface equation (plane, spherical, nth polynomial) which best fits the deformed optical surfaces. The obtained surfaces are then directly imported into a ZEMAX code for sequential ray-tracing analysis. Variations of the optical spot diagrams, modulation transfer function curves, and ensquared energy are then computed. The overall analysis shows that the preferred solution for mounting the optical elements is adopting the kinematic constraints instead of using the classical glue solution. (C) 2011 Optical Society of America (literal)

Prodotto di

• Istituto di fotonica e nanotecnologie (IFN) (Istituto)
• MD.P03.010.001 Sviluppo di strumentazione ottica e fotonica (Vis-UV-XUV-X) per impieghi scientifici (spaziali e radiazione di sincrotrone) ed industriali (MD.P03.010.002) (Modulo)

Autore CNR

• VANIA DA DEPPO (Unità di personale interno)

Incoming links:

Prodotto

• Istituto di fotonica e nanotecnologie (IFN) (Istituto)
• MD.P03.010.001 Sviluppo di strumentazione ottica e fotonica (Vis-UV-XUV-X) per impieghi scientifici (spaziali e radiazione di sincrotrone) ed industriali (MD.P03.010.002) (Modulo)

Autore CNR di

• VANIA DA DEPPO (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Applied optics (Rivista)