Design of an E-ELT M1 segment measurement machine with nanometer accuracy

A. Bos, R. Henselmans, P.C.J.N. Rosielle, M. Steinbuch, M.J.A. te Voert

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

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Samenvatting

The baseline design of the European Extremely Large Telescope features a telescope with a 39-meter-class primary mirror (M1), consisting of 798 hexagonal segments. A measurement machine design is presented based on a non-contact single-point scanning technique, capable of measuring the form error of each segment with nanometer uncertainty, fast, and with low operational costs. The implementation of a tactile precision probe eliminates the need for the CMM in the earlier segment manufacturing process. Preliminary assessment show nanometer-level uncertainty after calibration.

Originele taal-2Engels
TitelAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 22 June 2014, Montreal, Quebec
Plaats van productieBellingham
UitgeverijSPIE
Pagina's1-12
ISBN van geprinte versie9780819496195
DOI's
StatusGepubliceerd - 2014
EvenementAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation - Montreal, Canada
Duur: 23 jun 201427 jun 2014

Publicatie series

NaamProceedings of SPIE
Volume9151

Congres

CongresAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation
Land/RegioCanada
StadMontreal
Periode23/06/1427/06/14

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