Abstract: A method and system for accepting or rejecting a curved surface of a body under evaluation involves conducting a comparison between the curvature of a surface profile for the surface under evaluation and higher and lower curvature tolerance boundaries. The higher and lower curvature tolerance boundaries are determined from a desired surface profile. The curvature at a plurality of locations on the curve profile under evaluation may be defined with reference to a geometric variable for said curved surface and may be plotted on a graph. The higher and lower curvature tolerance boundaries may also be plotted on the graph so as to determine whether the plot of curvature for the surface under evaluation falls within the bounds of the higher and lower tolerance boundaries.

Abstract: A method and system for accepting or rejecting a curved surface of a body under evaluation involves conducting a comparison between the curvature of a surface profile for the surface under evaluation and higher and lower curvature tolerance boundaries. The higher and lower curvature tolerance boundaries are determined from a desired surface profile. The curvature at a plurality of locations on the curve profile under evaluation may be defined with reference to a geometric variable for said curved surface and may be plotted on a graph. The higher and lower curvature tolerance boundaries may also be plotted on the graph so as to determine whether the plot of curvature for the surface under evaluation falls within the bounds of the higher and lower tolerance boundaries.

Abstract: A method of selecting a component of optimal design comprising automated steps of a) measuring the periphery of at least part of said component; b) producing a 2D co-ordinate dataset (20) from said measurements; c) processing the 2D co-ordinate dataset (20) so as to produce a representation of characteristics of the periphery of the component; d) assigning a value to the difference between the characteristics of the periphery of the component and characteristics of a component of optimal design; and e) conducting a parametric analysis of the differences between the characteristics of the periphery of the component and the characteristics of a component of optimal design. The method further comprises the step of using the results of the parametric analysis to determine whether the component meets a predetermined criteria for acceptability.