Aerospace

E-ELT Field Stabilization Unit

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E-ELT Unidad de Estabilizado de Campo E-ELT Unidad de Estabilizado de Campo E-ELT Unidad de Estabilizado de Campo E-ELT Unidad de Estabilizado de Campo
E-ELT Unidad de Estabilizado de Campo
E-ELT Unidad de Estabilizado de Campo
E-ELT Unidad de Estabilizado de Campo
E-ELT Unidad de Estabilizado de Campo
  • Client: European Southern Observatory
  • Country: Chile
  • Start date: 2007
  • Ending date: 2010
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SENER was responsible for the conceptual design and validation of the field stabilization unit’s performance for the M5 mirror. This was done by designing and integrating a scale-one demonstrator for the European Extremely Large Telescope (E-ELT) during its phase B.

M5FU is a fast correcting optical system that provides tip-tilt corrections for the telescope dynamic pointing errors and for the effect of atmospheric tip-tilt and wind disturbances.

  • The main parts of the M5FU are:
  • M5 is an elliptical mirror measuring 2.9 m x 2.4 m and weighing 360 kg.
  • The tip-tilt movement is carried out by three piezo-actuators which can move a weight of up to 200 kg with a range of 450 microns.

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