Ultra-accelerated natural sunlight exposure testing

Patent · Tue Jun 13 00:00:00 EDT 2000

OSTI ID:873029

Jorgensen, Gary J ^[1]; Bingham, Carl ^[2]; Goggin, Rita ^[3]; Lewandowski, Allan A ^[4]; Netter, Judy C ^[5]

---

1. Pine, CO
2. Lakewood, CO
3. Englewood, CO
4. Evergreen, CO
5. Westminster, CO

Process and apparatus for providing ultra accelerated natural sunlight exposure testing of samples under controlled weathering without introducing unrealistic failure mechanisms in exposed materials and without breaking reciprocity relationships between flux exposure levels and cumulative dose that includes multiple concurrent levels of temperature and relative humidity at high levels of natural sunlight comprising: a) concentrating solar flux uniformly; b) directing the controlled uniform sunlight onto sample materials in a chamber enclosing multiple concurrent levels of temperature and relative humidity to allow the sample materials to be subjected to accelerated irradiance exposure factors for a sufficient period of time in days to provide a corresponding time of about at least a years worth of representative weathering of the sample materials.

• Research Organization: Midwest Research Institute, Kansas City, MO (United States)
• DOE Contract Number: AC36-83CH10093
• Assignee: Midwest Research Institute (Kansas City, MO)
• Patent Number(s): US 6073500
• Application Number: 09/006746
• OSTI ID: 873029
• Country of Publication: United States
• Language: English

Related Subjects

ultra-accelerated
natural
sunlight
exposure
testing
process
apparatus
providing
ultra
accelerated
samples
controlled
weathering
introducing
unrealistic
failure
mechanisms
exposed
materials
breaking
reciprocity
relationships
flux
levels
cumulative
dose
multiple
concurrent
temperature
relative
humidity
comprising
concentrating
solar
uniformly
directing
uniform
sample
chamber
enclosing
allow
subjected
irradiance
factors
sufficient
period
time
days
provide
corresponding
worth
representative
solar flux
sample materials
relative humidity
sample material
sufficient period
natural sunlight
chamber enclosing
concentrating solar
failure mechanisms
current level
current levels
sunlight exposure
flux uniformly
exposure testing
accelerated natural
/73/126/359/374/