Physics
Scientific paper
Oct 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996spie.2807..162m&link_type=abstract
Proc. SPIE Vol. 2807, p. 162-169, Space Telescopes and Instruments IV, Pierre Y. Bely; James B. Breckinridge; Eds.
Physics
Scientific paper
The proposed New Millennium Interferometer consists of three spacecraft separated by up to several kilometers. A heterodyne laser metrology system is proposed to measure the relative distances between the spacecraft. Because diffraction losses for a round-trip measurement are prohibitively large, a two-laser metrology system has been suggested in which each spacecraft has both a laser and a receiver. The system has been successfully demonstrated with a one meter baseline and verified by a conventional single- laser system in a laboratory experiment. The precision was limited by thermal effects in the room environment for time scales greater than one minute. The single-laser system obtained a precision of 3 nm for integration times up to 0.5 seconds. The two-laser system obtained a precision of 20 and was limited by self-interference and electronics noise. The resolution of the two-laser metrology system was (lambda) 30.
Morgan Rhonda
Shaklan Stuart B.
Yu Jeffrey W.
No associations
LandOfFree
Two-laser heterodyne metrology for a separated spacecraft interferometer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Two-laser heterodyne metrology for a separated spacecraft interferometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-laser heterodyne metrology for a separated spacecraft interferometer will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1141792