Patent attributes
A method of determining a void volume during manufacture of a composite pipe formed of concentric layers of adjacently positioned, helical windings of composite tape has the steps of: (a) scanning the surface of a layer of adjacently positioned, helical windings to generate scanning information; (b) using the scanning information to locate gap(s) between adjacent windings and to determine the number of gaps and characteristic dimensions of each gap in the layer; and (c) generating a calculated void volume of the layer, using the number of gaps and the characteristic dimensions of each gap for the layer. The invention also relates to a corresponding apparatus for determining a void volume during manufacture of a composite pipe formed of concentric layers of helically wound composite tape.