Grading NASA's Solar System Exploration Program A Midterm Report (2008) / Chapter Skim
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Appendix D: NASA Technology Readiness Levels
Appendix D: NASA Technology Readiness Levels
Pages 84-85
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From page 84... ...
For example, a TRL 4 demonstration of a new fuzzy logic approach laboratory to avionics might consist of testing the algorithms in a partially computer-based, partially bench-top environment component (e.g., fiber-optic gyros) demonstration in a controls laboratory using simulated vehicle inputs.
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From page 85... ...
For example, a new type of solar photovoltaic material promising higher efficiencies would at this level be used in an actual fabricated solar array "blanket" that would be integrated with power supplies, supporting structure, and so on, and tested in a thermal vacuum chamber with solar simulation capability. TRL 6 System/ At TRL 6, a representative model or system prototype or system would be tested in a relevant subsystem model environment.
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