Invention Grant
- Patent Title: Method for assessing the damage to a paint-covered composite material, measuring two separate criteria on the spectrogram
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Application No.: US15098895Application Date: 2016-04-14
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Publication No.: US09797829B2Publication Date: 2017-10-24
- Inventor: Andre Baillard , Odile Lefeu , Frederic Joubert , Emmanuel Piel
- Applicant: AIRCELLE
- Applicant Address: FR Gonfreville l'Orcher
- Assignee: AIRCELLE
- Current Assignee: AIRCELLE
- Current Assignee Address: FR Gonfreville l'Orcher
- Agency: Burris Law, PLLC
- Priority: FR1360123 20131017
- Main IPC: G01N21/3563
- IPC: G01N21/3563 ; G01N25/72 ; G01J3/28 ; G01N33/32 ; G01N21/84 ; G01N21/88 ; G01N21/95
Abstract:
A method for assessing damage to a composite material covered with a polyurethane-type paint is provided. Two separate criteria are measured on a spectrogram obtained by infrared spectrometry, thereby characterizing thermal ageing of the paint, each separate criteria being a measurement on a curve of a spectrum of the spectrogram of a height of a particular peak, thereby giving two independent assessments of the thermal ageing. Then, the two separate criteria are combined together in order to obtain a result of a level of the damage.
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