Electric spark recording

Details Electric spark recording Electric spark recording

1976-07-12

1978-08-01

Lucas, Jay P.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

33 23C, 346 29, G01D 1508, G01D 932

Patent

active

041046480

ABSTRACT:
A graphic recording technique is disclosed for the enlargement of a relief configuration. A micro-stylus is used to scan the configuration laterally while measuring vertical irregularities in the surface; and a recorder stylus is synchronized therewith to record the scan. A series of scans are provided where each successive scan is offset from the previous scan to produce a topographical representation of the relief configuration from the recorder stylus. Vertical movements of the micro-stylus along the surface of the relief configuration are reproduced by the recorder stylus as movements on the ordinate axis in combination with the scan offset thus producing a two dimensional graphical display of a three dimensional relief configuration. Hidden contours of the relief configuration are accurately suppressed by causing the recorder stylus to stop recording at the boundary of a previously written scan area and to begin recording once the previously recorded area has been departed.

REFERENCES:
patent: 3377598 (1968-04-01), Borman
patent: 3593615 (1971-07-01), Shelton
patent: 3675333 (1972-07-01), Wilson
patent: 3803635 (1974-04-01), Andree
patent: 3816839 (1974-06-01), Honda
patent: 3998315 (1976-12-01), Phillips

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