1
Harold F L Pinkney, Charles I Perratt: Method and apparatus of determining the center of area or centroid of a geometrical area of unspecified shape lying in a larger x-y scan field. Canadian Patents & Development, J R Hughes, August 26, 1980: US04219847 (160 worldwide citation)

A method of obtaining on-line data useful in determining the center of area or centroid of a geometrical area of unspecified shape lying in a larger x-y scan field and having its existence indicated by a level discriminated amplitude or intensity or a parameter measurable in the z-dimension comprisi ...


2
Pinkney Harold Fl, Perratt Charles I: Methode et appareil pour determiner le centre de masse dune surface geometrique de forme quelconque situee dans un plan de balayage x-y plus etendu, Method and apparatus of determining the center of area or centroid of a geometrical area of unspecified shape lying in a larger x-y scan field. National Research Council Of Canada, HUGHES JAMES R, June 23, 1981: CA1103803

T I T L E METHOD AND APPARATUS OF DETERMINING THE CENTER OF AREA OR CENTROID OF A GEOMETRICAL AREA OF UNSPECIFIED SHAPE LYING IN A LARGE X-Y SCAN FIELD INVENTORS Harold F.L. Pinkney Charles Perratt ABSTRACT OF THE DISCLOSURE A method of obtaining on-line date useful indetermining the center of area ...