Realization and testing of an active mirror mechanism for in-field pointing in eLISA

Gert Witvoet; Jet Human; Matthew Maniscalco

doi:10.1117/12.2231225

22 July 2016 Realization and testing of an active mirror mechanism for in-field pointing in eLISA

Gert Witvoet, Jet Human, Matthew Maniscalco

Author Affiliations +

Proceedings Volume 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II; 99126A (2016) https://doi.org/10.1117/12.2231225
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

An active tilt mirror mechanism, meant for correction of the constellation breathing of the evolved Laser Interferometer Space Antenna, has been designed and realized. Its open-loop performance has been characterized in both time and frequency domain. Based on this, a feedback controller has been designed and the resulting closed-loop performance has been assessed. Up to what is measurable in a normal lab environment, these experiments demonstrate compliance with the extreme pointing jitter requirement, even when using the internal encoder as feedback sensor.

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Gert Witvoet, Jet Human, and Matthew Maniscalco "Realization and testing of an active mirror mechanism for in-field pointing in eLISA", Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 99126A (22 July 2016); https://doi.org/10.1117/12.2231225

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