Method and apparatus for evaluating the phase changing function of fabric
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United States of America Patent
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Mar 9, 2004
Grant Date -
Oct 9, 2003
app pub date -
Apr 4, 2002
filing date -
Apr 4, 2002
priority date (Note) -
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Abstract
The present invention relates to a method and an apparatus for evaluating the phase changing function of fabric. First, a fabric with phase changing material to be evaluated its phase changing function is provided and positioned between a body temperature device and an environment temperature device. Then, said fabric is heated by a controller through two control means for simulating the temperature of a human body and nature environment respectively, wherein said controller is connected with said body temperature device and with said environment temperature device separately with two control signal cables for controlling temperature, and said fabric generates a body thermal signal and an environment thermal signal. A record device is provided for receiving said body thermal signal and said environment thermal signal through at least a feedback signal cables. At last, said record device records and outputs an efficient protection time (the time that fabric is heated by said controller) and a body thermal variate of said fabric for evaluating the phase changing function thereof.
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