Device and method for measuring forces and moments.

摘要

Method for measuring forces and moments acting on a body, comprising the application on said body (11) of a measuring structure (12), said measuring structure (12) one or more elements comprising, said body being connected (11 ) to said one or more elements through a plurality of elastic connection elements or elastic ties (17, 18, 37) of an indeterminate manner statically; being stressed said body (11) by generalized forces described by the vector Fg = [Fx Fy Fz Tx Ty Tz] to be determined, defined Fg by components along three coordinate axes of the generalized external forces, ie a vector of time T and a vector force F oriented in any way, obtaining said vector Fg by measuring on said measuring structure (12) six magnitudes at one or more points, these quantities being defined by a vector S = [S1 S4 S5 S6 S3 S2]; comprising the step of deriving the vectors F and T of a mathematical relationship between Fg = [Fx Fy Fz Tx Ty Tz] and S = [S1 S2 S3 S4 S5 S6] for statically indeterminate structures, comprising mathematical said ratio matrices that containing terms dependent on the geometrical dimensions of said measuring structure (12) and related terms stiffness of said elastic connection elements or elastic ties (17, 18, 37).