which illustrates a cross sectional side view of the assembled transducer 1 with reference to fig2 a when a force such as that which occurs during walking is applied vertically to the spring 2 the spring 2 transmits a force with radial and vertical components to the lip of plate 3 since the radial component is applied above the neutral plane of the plate that component creates a bending stress which tends to bow the plate upward as seen in fig2 b namely in the direction of curvature of the spring 2 the curvature of the spring 2 convex away from the plate 3 is particularly illustrated in fig2 a in addition the radial component also creates an axial load through the retaining lip on the transducer plate 3 the vertical component of the force is transmitted through the lip to the surface supporting the transducer 1 creating a bending moment which tends to bend the plate 3 downward or away from the direction of curvature of the spring 2 it has been determined that so long as the spring 2 is not completely flat the radial component dominates the vertical component such that the plate 3 bends upward or in the same direction as the curvature of the spring 2 as shown in fig2 a.