NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Automation, Operation, and Data Analysis in the Cryogenic, High Accuracy, Refraction Measuring System (CHARMS)The Cryogenic High Accuracy Refraction Measuring System (CHARMS) at NASA s Goddard Space Flight Center has been enhanced in a number of ways in the last year to allow the system to accurately collect refracted beam deviation readings automatically over a range of temperatures from 15 K to well beyond room temperature with high sampling density in both wavelength and temperature. The engineering details which make this possible are presented. The methods by which the most accurate angular measurements are made and the corresponding data reduction methods used to reduce thousands of observed angles to a handful of refractive index values are also discussed.
Document ID
20050180251
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Frey, Bradley
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Leviton, Duoglas
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2005
Subject Category
Optics
Meeting Information
Meeting: SPIE 31
Location: San Diego, CA
Country: United States
Start Date: July 31, 2005
End Date: August 4, 2005
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available