A project to develop precision segmented reflectors (PSRs) which operate at submillimeter wavelengths is described. The development of a light efficient means for the construction of large-aperture segmented reflecting space-based telescopes is the primary aim of the project. The 20-m Large Deployable Reflector (LDR) telescope is being developed for a survey mission, and it will make use of the reflector panels and materials, structures, and figure control being elaborated for the PSR. The surface accuracy of a 0.9-m PSR panel is shown to be 1.74-micron RMS, the goal of 100-micron RMS positioning accuracy has been achieved for a 4-m erectable structure. A voice-coil actuator for the figure control system architecture demonstrated 1-micron panel control accuracy in a 3-axis evaluation. The PSR technology is demonstrated to be of value for several NASA projects involving optical communications and interferometers as well as missions which make use of large-diameter segmented reflectors.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Precision segmented reflectors for space applications


    Contributors:

    Conference:

    European Congress on Optics ; 1990 ; The Hague, Netherlands


    Publication date :

    1990-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




    CONSTRUCTION CONCEPTS FOR PRECISION SEGMENTED REFLECTORS

    MIKULAS JR.,, MARTIN / WITHNELL, PETER | AIAA | 1993


    Construction concepts for precision segmented reflectors

    Mikulas, Martin M., Jr. / Withnell, Peter R. | NTRS | 1993


    The precision segmented reflectors: Moderate mission figure control subsystem

    Sevaston, G. / Redding, D. / Lau, K. et al. | NTRS | 1991


    Preliminary design approach for large high precision segmented reflectors

    Mikulas, Martin M., Jr. / Collins, Timothy J. / Hedgepeth, John M. | NTRS | 1990


    Preliminary Design Approach for Large High Precision Segmented Reflectors

    M. M. Mikulas / T. J. Collins / J. M. Hedgepeth | NTIS | 1990