SEMI RIGID AND ADJUSTABLE CFRP MEMBRANE FOR RADIO TELESCOPE APPLICATIONS

D. GILES, S. KULICK
2001 Deep Millimeter Surveys  
High accuracy, very light-weight carbon fiber reinforced plastic (CFRP) membrane reflectors have been demonstrated by Composite Optics, Inc. (COI) for applications in ground-based, millimeter wave radio astronomy. The figure of a semirigid membrane can be significantly improved by suitably altering the adjustment of an array of passive adjusters that support the membrane. A factor of ten contour improvement is possible. First, the surface is measured and analyzed for Zernike error modes. Then
more » ... error modes. Then an adjustment scenario, dictated by a customized software program, is applied to the adjusters. This process is repeated to produce dimensionally stable reflectors several meters in diameter at or below 0.001 inch rms.
doi:10.1142/9789812811738_0012 fatcat:gxnm4qlx2fcezodpcfqxj7x3c4