发明名称 |
Thermal resonance imaging method |
摘要 |
In an infrared (IR) transient thermography system a sequence of image frames is acquired from an IR sensitive focal-plane array camera. Each sequentially acquired image frame is made up of an array of pixels and has assigned a frame-number that corresponds to elapsed time. Temperature-versus-time (T-t) data corresponding to each pixel is developed from stacks of sequential image-frames. A method of analyzing the stacks of thermal data image-frames is presented wherein either the Real or the Imaginary component portions of a Fast-Fourier Transform of a normalized T-t data curve from each pixel is used to determine the thickness of an object and produce a color-keyed or gray-scale coded thickness map.
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申请公布号 |
US6367968(B1) |
申请公布日期 |
2002.04.09 |
申请号 |
US20000568052 |
申请日期 |
2000.05.10 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
RINGERMACHER HARRY I.;HOWARD DONALD R. |
分类号 |
G01B11/06;G01B21/08;G01N25/72;(IPC1-7):G01N25/72 |
主分类号 |
G01B11/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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