发明名称 |
Method and system for measuring the thermal diffusivity |
摘要 |
The present invention concerns a method and a system for measuring the thermal diffusivity. Said method comprises the steps of: subjecting a surface region of an object to a modulated heating beam ( 3 ) while providing a signal (MLS) thereof, the heated spot or area ( 4 ) of the surface of the sample ( 2 ) having a definitive diameter and a fixed intensity distribution profile; providing a signal (MTS) proportional to the temperature of the heated spot area ( 4 ); determining the phase difference between the modulated beam signal (MLS) and the resulting modulated temperature signal (MTS); using said determined phase difference and the associated frequency to work out the thermal diffusivity value of said object ( 2 ).
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申请公布号 |
US2006153269(A1) |
申请公布日期 |
2006.07.13 |
申请号 |
US20030535073 |
申请日期 |
2003.11.20 |
申请人 |
LAKESTANI FEREYDOUN;SALERNO ANTONIO;VOLCAN ALBERTO |
发明人 |
LAKESTANI FEREYDOUN;SALERNO ANTONIO;VOLCAN ALBERTO |
分类号 |
G01N25/20;G01K17/20;G01N25/18 |
主分类号 |
G01N25/20 |
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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