The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 2008
Filed:
Nov. 20, 2003
Fereydoun Lakestani, Varese, IT;
Antonio Salerno, Milan, IT;
Alberto Volcan, Varese, IT;
The European Community, , BE;
Abstract
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 () while providing a signal (MLS) thereof, the heated spot or area () of the surface of the sample () having a definitive diameter and a fixed intensity distribution profile; providing a signal (MTS) proportional to the temperature of the heated spot area (); determining the phase difference between the modulated beam signal (MLS) and the resulting modulated temperature signal (MTS); and using said determined phase difference and the associated frequency to work out the thermal diffusivity value of said object ().