Unimorph deformable mirror for space telescopes: environmental testing
- We have developed and manufactured a unimorph deformable mirror for space telescopes based on piezoelectric actuation. The mirror features 44 actuators, has an aperture of 50 mm, and is designed to reproduce low-order Zernike modes with a stroke of several tens of µm. We assessed the space compliance by operating the mirror in thermal vacuum, and exposing it to random and sinusoidal vibrations, as well as to ionizing irradiation. Additionally, the operational life time and the laser power handling capability were tested. The mirror was successfully operated in thermal vacuum at 100 K. We report on the conducted tests and the methods used to evaluate the mirror´s performance, and discuss the compliance with the demanded requirements
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| Author: | Peter Rausch, Sven Verpoort, Ulrich Wittrock |
|---|---|
| URN: | urn:nbn:de:hbz:836-opus-8530 |
| DOI: | https://doi.org/10.25974/fhms-853 |
| DOI of first publication: | https://doi/org/10.1364/OE.24.001528 |
| Parent Title (English): | Opt. Expr. |
| Document Type: | Article |
| Language: | German |
| Date of Publication (online): | 2016/01/21 |
| Year of first Publication: | 2016 |
| Publishing Institution: | FH Münster - University of Applied Sciences |
| Release Date: | 2016/01/21 |
| Tag: | active or adaptive optics; radiation; space instrumentation; space optics; telescopes thermal effects vibration analysis |
| Volume: | 24 |
| First Page: | 1528 |
| Last Page: | 1542 |
| Institutes: | Physikingenieurwesen (PHY) |
| Dewey Decimal Classification: | 6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten |
| Publication list: | Wittrock, Ulrich |
| Licence (German): |  Zweitveroeffentlichung |
