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Proceedings Paper

Development of an extra-vehicular (EVA) infrared (IR) camera inspection system
Author(s): Michael Gazarik; Dave Johnson; Ed Kist; Frank Novak; Charles Antill; David Haakenson; Patricia Howell; John Pandolf; Rusty Jenkins; Rusty Yates; Ryan Stephan; Doug Hawk; Michael Amoroso
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Paper Abstract

Designed to fulfill a critical inspection need for the Space Shuttle Program, the EVA IR Camera System can detect crack and subsurface defects in the Reinforced Carbon-Carbon (RCC) sections of the Space Shuttle's Thermal Protection System (TPS). The EVA IR Camera performs this detection by taking advantage of the natural thermal gradients induced in the RCC by solar flux and thermal emission from the Earth. This instrument is a compact, low-mass, low-power solution (1.2cm3, 1.5kg, 5.0W) for TPS inspection that exceeds existing requirements for feature detection. Taking advantage of ground-based IR thermography techniques, the EVA IR Camera System provides the Space Shuttle program with a solution that can be accommodated by the existing inspection system. The EVA IR Camera System augments the visible and laser inspection systems and finds cracks and subsurface damage that is not measurable by the other sensors, and thus fills a critical gap in the Space Shuttle's inspection needs. This paper discusses the on-orbit RCC inspection measurement concept and requirements, and then presents a detailed description of the EVA IR Camera System design.

Paper Details

Date Published: 18 April 2006
PDF: 12 pages
Proc. SPIE 6205, Thermosense XXVIII, 62051C (18 April 2006); doi: 10.1117/12.669683
Show Author Affiliations
Michael Gazarik, NASA Langley Research Ctr. (United States)
Dave Johnson, NASA Langley Research Ctr. (United States)
Ed Kist, NASA Langley Research Ctr. (United States)
Frank Novak, NASA Langley Research Ctr. (United States)
Charles Antill, NASA Langley Research Ctr. (United States)
David Haakenson, NASA Langley Research Ctr. (United States)
Patricia Howell, NASA Langley Research Ctr. (United States)
John Pandolf, NASA Langley Research Ctr. (United States)
Rusty Jenkins, NASA Langley Research Ctr. (United States)
Rusty Yates, NASA Johnson Space Ctr. (United States)
Ryan Stephan, NASA Johnson Space Ctr. (United States)
Doug Hawk, Swales Aerospace Corp., NASA Goddard Space Flight Ctr. (United States)
Michael Amoroso, Jacops-Sverdrup, NASA Johnson Space Ctr. (United States)


Published in SPIE Proceedings Vol. 6205:
Thermosense XXVIII
Jonathan J. Miles; G. Raymond Peacock; Kathryn M. Knettel, Editor(s)

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