公开(公告)号：US10006752B2

公开(公告)日：2018-06-26

申请号：US14350398

申请日：2012-10-17

Applicant: MESSIER-BUGATTI-DOWTY ,  AIRCELLE

Inventor： Lionel Gay ,  Nicolas Garrigou ,  Francis Monerie-Moulin

IPC: G01B7/06

CPC classification number: G01B7/105 ,  G01B7/06

Abstract: A method of measuring the thickness of a coating layer of a workpiece, the layer being formed on a substrate of the workpiece. The method comprises several steps. First, feeding a probe alternating electrical signal to induction device in order to induce a magnetic field in the workpiece. Second, measuring at least one physical characteristic that varies as a function of the magnetic field induced in the workpiece. Third, determining first and second values of an indicator, the values being determined respectively from measurements of the physical characteristic taken when the electrical signal has first and second given frequencies. Forth, calculating the difference between the first and second values of the indicator and determining the thickness of the coating layer as a function of the difference and of predetermined data correlating: the difference between the values of the indicator; and corresponding values for thicknesses of the coating layer.

公开(公告)号：US09274002B2

公开(公告)日：2016-03-01

申请号：US14245816

申请日：2014-04-04

Applicant: AIRCELLE

Inventor： Lionel Gay ,  Thibaud Chopard ,  Odile Lefeu ,  Frédéric Joubert

IPC: G01N21/35 ,  G01N21/3563 ,  G01J3/45 ,  G01N21/95 ,  G01N29/04 ,  G01N29/12 ,  G01N21/84

CPC classification number: G01J3/45 ,  G01N21/3563 ,  G01N21/95 ,  G01N29/041 ,  G01N29/12 ,  G01N2021/3595 ,  G01N2021/8472 ,  G01N2201/0221 ,  G01N2291/0231 ,  G01N2291/2694

Abstract: A method for the non-destructive inspection of a part made from an organic-matrix composite material (CMO) includes the steps of: a) carrying out a surface inspection of the part by Fourier transform infrared spectroscopy (FTIS), b) if step a) reveals a defect, carrying out in-depth inspections of the organic-matrix composite material according to two complementary ultrasound techniques.

Abstract translation: 一种用于对由有机基质复合材料（CMO）制成的部件进行非破坏性检查的方法包括以下步骤：a）通过傅立叶变换红外光谱法（FTIS）对部件进行表面检查，b）如果步骤 a）显示缺陷，根据两种互补超声技术对有机基质复合材料进行深入检查。

公开(公告)号：US20140324384A1

公开(公告)日：2014-10-30

申请号：US14350398

申请日：2012-10-17

Applicant: MESSIER-BUGATTI-DOWTY ,  AIRCELLE

Inventor： Lionel Gay ,  Nicolas Garrigou ,  Francis Monerie-Moulin

IPC: G01B7/06

CPC classification number: G01B7/105 ,  G01B7/06

Abstract: A method of measuring the thickness of a coating layer of a workpiece, the layer being formed on a substrate of the workpiece. The method comprises several steps. First, feeding a probe alternating electrical signal to induction device in order to induce a magnetic field in the workpiece. Second, measuring at least one physical characteristic that varies as a function of the magnetic field induced in the workpiece. Third, determining first and second values of an indicator, the values being determined respectively from measurements of the physical characteristic taken when the electrical signal has first and second given frequencies. Forth, calculating the difference between the first and second values of the indicator and determining the thickness of the coating layer as a function of the difference and of predetermined data correlating: the difference between the values of the indicator; and corresponding values for thicknesses of the coating layer.

Abstract translation: 一种测量工件涂层厚度的方法，该层在工件的基底上形成。 该方法包括几个步骤。 首先，将探头交流电信号馈送到感应装置，以便在工件中引起磁场。 其次，测量作为在工件中感应的磁场的函数而变化的至少一个物理特性。 第三，确定指示符的第一和第二值，分别根据当电信号具有第一和第二给定频率时获取的物理特性的测量值确定值。 计算指标的第一和第二值之间的差值，并根据差值和预定数据确定涂层的厚度，与指标值的差值相关： 以及涂层厚度的相应值。