Importance

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Abstract

A dynamometer is provided with a testing member having a bending beam. The bending beam has an end embedded in a support and is elastically deformable in bending under the influence of a force Q applied to its opposite end. The dynamometer further comprises a sensor for detecting the deformation of the beam. Anchorage zones are defined in the material of the beam, for receiving four rows of windings of prestressed gauge wire having their principal strands directed approximately perpendicularly to the force Q. The principal strands remain in close contact with the beam in the bending zone. Two of the rows of windings have their principal strands arranged along the tensioned fibres of the beam and the other two have their main strands arranged along the compressed fibres of the beam. The four rows of windings form an electrical bridge assembly.

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First Claim