Friday, November 07, 2008

Mirror Actuators in Telescope Applications

As discussed in previous posts, large telescopes today use a segmented mirror approach due to the deformation of mirrors larger than 5m. To this end, mirror actuators become a critical component of telescope design. A long-time National Instruments partner, Physik Instrumente uses nanopositioning techniques to provide 6 degrees of freedom control on the mirrors. Mirror actuators are critical as they represent a large portion of the failures in existing actuators.

The TMT telescope which stands for Thirty Meter Telescope solves the problem by shrinking the individual mirror size down to 1 foot and then applying many more actuators to the mirror to deform the shape to correct for atmospheric conditions.


Best regards,
Hall T.

5 Comments:

Anonymous Anonymous said...

Your article is amazing. It helped me a lot with my research about different kinds of valves and

actuators and how this stuff works with other mechanical devices...

again,thanks a lot.

mugen

Monday, November 24, 2008 10:40:00 PM  
Anonymous Anonymous said...

Thank you for the informative post, Hall.

Astronomical applications are one of our most important and fascinating business segments. From six-DOF positioning of secondary optic packages, to resolution-enhancing focal plane dithering, to the high-force/high-dynamics nano-actuators for deformable mirrors that caught your eye ...and much else... we enjoy quite a lot of immersion in this field. I've found that a robust LabVIEW library and support of LabVIEW FPGA can be must-have tools for our mutual customers.

Happy Thanksgiving! We appreciate the reference.

Best,

--Scott Jordan, PI

Thursday, November 27, 2008 10:53:00 AM  
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