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Very Large Telescope Interferometer - Delay Line project
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System engineer Harm Hogenhuis
inspecting a part of the Delay Line. |
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Harm Hogenhuis adjusting the laser metrology system | |
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The laser metrology system of Delay Line #1 and #2.
Based on laser interferometry, the laser metrology system is capable of
measuring the position of the mirror on the carriage with an accuracy of
1.6 nanometer, over a distance of 66 meter!
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Installation of the Cat's Eye on the carriage. |
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With thanks to the European Southern Observatory (ESO), Dutch Space, TNO, and Mill House Consultancy. More information on the VLTI Delay Line project: http://www.eso.org/outreach/press-rel/pr-2001/pr-06-01.html http://www.eso.org/outreach/press-rel/pr-2000/phot-26-00.html
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