Dynamic temperature controlled accelerated weathering test apparatus
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United States of America Patent
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Dec 9, 2003
Grant Date -
Nov 20, 2003
app pub date -
May 17, 2002
filing date -
May 17, 2002
priority date (Note) -
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Abstract
An accelerated weathering test apparatus for concentrating solar radiation upon at least one test specimen including a target board, a reflector device, an air circulation device, a feedback device, an input device and a controller. Ambient air is circulated over the target board to cool the test specimens. The controller continuously sets a dynamic set point based on the reference signal from the input device which is representative of a complex temperature cycle of a material end-use application and adjusts the rate of air circulation based on a test signal from the feedback device.
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