Temperature mapping system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 7, 2000
Grant Date -
N/A
app pub date -
Jul 14, 1998
filing date -
Jul 15, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of and system for determining the location of hot spots on the surface of an object which has thermotropic material applied to the surface are disclosed. The system is designed to varying the nominal temperature of the object through a range of nominal temperatures between a first nominal temperature limit and a second nominal temperature limit, wherein one temperature limit is below and the other nominal temperature limit is above the temperature at which the thermotropic material changes phase. A sequence of images of the surface are acquired, each of the images depicting a two dimensional temperature representation of the surface at a predetermined nominal temperature within the range of nominal temperatures, wherein each image in the sequence represents an incremental change in nominal temperature than that of a preceding image. Select ones of the images are processed to define the intensity signature of valid hot spots in the select ones of the images and to determine the location of the hot spots on the surface as a function of the defined intensity signature.
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