Out of plane measurements of material strain
Référence
85431-01
Statut des brevets
French patent application FR0208969 filed on July 16, 2002 and entitled “Dispositif pour mesurer des variations dans le relief d’un objet”
Inventeurs
J. BRILLAUD
F. LAGATTU
Statut commercial
Exclusive or non-exclusive licenses and collaborative research.
Laboratoire
Laboratoire de mécanique et de physique des matériaux (LMPM, UMR6617), Chasseneuil du Poitou, France.
Description
TECHNICAL DESCRIPTION
This invention provides the measurement of out of plane displacement in objects during mechanical tests without contact.
The analyzed section is usually 15×20 mm2.
The resolution of the measurement is 1 to 2 µm on a large range of gradients (10-3 to 10-1).
An accurate map of the whole surface can be obtained quickly (from a few seconds to a few minutes according to the number of points to be treated).
INDUSTRIAL APPLICATIONS
To measure deformation of an object out of the plane to obtain material constitutive laws, for example.
Use as a “profilometer” is possible