Development and qualification of the Feed-Select Mechanism for the Polarimetric and Helioseismic Imager on-board Solar Orbiter

The Solar Orbiter Polarimetric and Helioseismic Imager (SO/PHI) will provide maps of the magnetic vector and of the line-of-sight velocities in the solar photosphere. For reaching its science goals, SO/PHI is equipped with two telescopes: the high resolution channel (HRT) and the full disk channel (...

Full description

Saved in:
Bibliographic Details
Published in:CEAS space journal 2019-12, Vol.11 (4), p.497-505
Main Authors: Staub, Jan, Oberdorfer, Dietmar, Deutsch, Werner, Gandorfer, Achim, Grauf, Bianca, Hirzberger, Johann, Mueller, Marc F., Woch, Joachim
Format: Article
Language:English
Subjects:
Aerospace Technology and Astronautics
Cameras
Engineering
Original Paper
Photosphere
Polarimetry
Solar Orbiter (ESA)
Space telescopes
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The Solar Orbiter Polarimetric and Helioseismic Imager (SO/PHI) will provide maps of the magnetic vector and of the line-of-sight velocities in the solar photosphere. For reaching its science goals, SO/PHI is equipped with two telescopes: the high resolution channel (HRT) and the full disk channel (FDT). Since both optical channels are fed into a common path including the camera, the need arises for a highly precise mechanism, which selects only one telescope at a time: the Feed-Select Mechanism (FSM). The mechanism therefore needs to serve two purposes: (1) directing one channel towards the camera, (2) shutting the second channel to not disturb the measurement of the observing channel. In this paper we will describe the different design features, as well as the design verification and qualification of the mechanism.
ISSN:1868-2502
1868-2510
DOI:10.1007/s12567-019-00246-y