Load cell

Details Load cell Load cell

G - Physics

01

L

G01L 1/22 (2006.01) G01G 3/14 (2006.01)

Patent

CA 2380470

A load cell 1 includes a strain body 2, a bridge circuit and a coating film 10. The bridge circuit is formed of a strain gauge 7 arranged on the strain body 2. The coating film 10 is formed on the strain body 2, covers at least a portion of the strain body 2 attached to a member made of a metal material dissimilar to the strain body and a strain occurring portion of the strain body 2 except for a portion to be attached to the strain gauge 7, includes a coating layer made of resin having a glass transition temperature of 40°C or more, and has an electrical insulating property.

L'invention porte sur une cellule de charge (1) comportant: un corps déformable (2), un circuit en pont, un film (10), des jauges de contrainte (7) montées sur le corps déformable (2). Le film (10) placé sur le corps déformable (2) en recouvre au moins la partie où s'applique un élément métallique d'un métal, différent de celui du corps déformable (2), à l'exclusion de la partie où se trouvent les jauges de contrainte (7), revêtu d'une couche de résine isolante électriquement dont la température de transition vitreuse est de 40 DEG C ou plus.

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