A device for evaluating the dynamic, mechanical properties...

G - Physics – 01 – N

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Details

G01N 3/38 (2006.01) A61B 5/103 (2006.01) G01N 3/40 (2006.01) G01N 3/00 (2006.01)

Patent

CA 2375451

A device (10) for evaluating dynamic, mechanical properties of materials includes an elongate cylindrical housing (12) projecting from a handle (14). The housing (12) defines a passage (16). One end of the passage (16) is closed off by a plug (18) with an opposed end of the passage (16) having an end cap (20). A resiliently flexible beam (22) is arranged in a cantilevered manner in the passage (16). A probe (24) is arranged at a free end of the beam (22). A strain gauge array (28) is mounted on the beam (22) for monitoring the deflection of the beam (22) and for generating an output signal representative of the movement of the beam (22). A method for evaluating dynamic, mechanical properties of materials is also disclosed.

La présente invention concerne un dispositif (10) permettant d'évaluer les propriétés dynamiques et mécaniques de matériaux. Ce dispositif comprend un boîtier cylindrique allongé (12) faisant saillie d'une poignée (14). Ledit boîtier (12) définit un passage (16). Une extrémité du passage (16) est fermée par une fiche (18) et l'extrémité opposée du passage (16) présente un capuchon terminal (20). Une barre flexible de manière résiliente (22) est placée en porte-à-faux dans le passage (16). Une sonde (24) est placée à une extrémité libre de la barre (22). Un système à jauge de contrainte (28) est monté sur la barre (22) afin de contrôler la déflexion de la barre (22) et de produire un signal de sortie correspondant au mouvement de la barre (22). Cette invention concerne également un procédé permettant d'évaluer les propriétés dynamiques et mécaniques de matériaux.

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