Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “INTERFEROMETER”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 1,009 records · Page 56
All sourcesNASA NTRSDOE OSTI
NASA NTRS1999

Exozodiacal Disk Detection Potential with the Keck Interferometer

If the dust content of nearby solar system is comparable to, or larger than, that of our own zodiacal disk, the thermal emission from exozodiacal disks will significantly outshine planetary companions to nearby stars.

exozodiacal disk Keck interferometer MIR Keck null↗
NASA NTRS1993

Dimensionally Stabel Materials for Space Interferometers

Future NASA missions in astrophysics, Earth observation, and solar system exploration that require optical communication optical and infrared imaging, or high precision astrometric measurements impose very stringent demands for the dimensional stability issues included: the cassini Imaging Science Subsystem (ISS) and the Space Infrared Telescope (SIRTF). Longer range mission plans call for even more stringent dimensional stability. JPL has identified twenty-six proposed missions with critical dimensional stability requirements.

Space Interferometers↗
NASA NTRS2006

Corner cube model for internal metrology system of Space Interferometer Mission (SIM)

A corner cube (CC) articulation model has been developed to evaluate the SIM internal metrology (IntMet) optical delay bias (with the accuracy of picometer) due to the component imperfections, such as vertex offset, reflection coating index error, dihedral error, and surface figure error at each facet. This physics-based and MATLAB-implemented geometric optics model provides useful guidance on the flight system design, integration, and characterization. The first portion of this paper covers the CC model details. Then several feature of the model, such as metrology beam footprint visualization, roofline straddling/crossing analysis, and application to drive the sub-system design and the error budget flow-down, are demonstrated in the second part.

Corner cube,↗