公开(公告)号：US09797829B2

公开(公告)日：2017-10-24

申请号：US15098895

申请日：2016-04-14

Applicant: AIRCELLE

Inventor： Andre Baillard ,  Odile Lefeu ,  Frederic Joubert ,  Emmanuel Piel

IPC: G01N21/3563 ,  G01N25/72 ,  G01J3/28 ,  G01N33/32 ,  G01N21/84 ,  G01N21/88 ,  G01N21/95

CPC classification number: G01N21/3563 ,  G01J3/28 ,  G01J2003/2859 ,  G01N21/8422 ,  G01N21/8851 ,  G01N21/95 ,  G01N25/72 ,  G01N33/32 ,  G01N2021/8427 ,  G01N2021/8472

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.