Device for finding centroid coordinates of figures

Details Device for finding centroid coordinates of figures Device for finding centroid coordinates of figures

1994-02-02

1996-05-07

Cosimano, Edward R.

Boots, shoes, and leggings

33121, 33123, 33124, 348172, 364463, 36447429, G01B 2100, G06F 1710, G06F 1900

Patent

active

055152996

ABSTRACT:
A device for finding the centroid coordinates of a figure that can calculate the centroid from a single time measurement of the figure and display the calculated centroid of the figure. The measuring device comprises a main body having a roller capable of running in a single direction and a measuring lever pivotably supported by the main body so as to be rotatable right or left from the running direction of main body on a horizontal plane. In the measuring device, the main body has a display and a calculating circuit. The tracer of the measuring lever traces the contour of the figure to measure the coordinates, areas, and lengths of the figure. At the same time, the calculating circuit computes the geometrical moments of areas successively and sums the geometrical moments of the areas. Finally, the calculating circuit divides the summed geometrical moment of the areas by an area of the figure to obtain the coordinates of the centroid of the figure. The display is showing the differences of the current coordinates of the measuring lever from the coordinates of the centroid of the figure.

REFERENCES:
patent: 4004083 (1977-01-01), Norem
patent: 4127941 (1978-12-01), Hoover
patent: 4616419 (1986-10-01), Kubo
patent: 4621959 (1986-11-01), Kishi et al.
patent: 4706201 (1987-11-01), Kish et al.
patent: 4791576 (1988-12-01), Tanaka et al.
patent: 5115569 (1992-05-01), Kubo

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