Thumbnail
Access Restriction
Open

Author Kugel, H. W. ♦ Loesser, D. ♦ Roquemore, A. L. ♦ Menon, M. M. ♦ Barry, R. E.
Sponsorship (US)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher The American Physical Society
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ GEOMETRY ♦ LASERS ♦ RADAR ♦ TARGETS
Abstract A frequency modulated Coherent Laser Radar ranging diagnostic is being used on the National Spherical Torus Experiment (NSTX) for precision metrology. The distance (range) between the 1.5 {mu}m laser source and the target is measured by the shift in frequency of the linearly modulated beam reflected off the target. The range can be measured to a precision of <100 {mu}m at distances of up to 22 m. A description is given of the geometry and procedure for measuring NSTX interior and exterior surfaces during open vessel conditions, and the results of measurements are elaborated.
ISSN 00346748
Educational Use Research
Learning Resource Type Article
Publisher Date 2001-01-01
Publisher Place United States
Journal Review of Scientific Instruments
Volume Number 72
Issue Number 1


Open content in new tab

   Open content in new tab