NASA NTRS · 19930000451
Automated Surface Profilometer
Abstract
Computer-controlled system saves time and labor. Electromechanical scanning system automatically measures deviation of sheets and plates from flatness. Quickly measures surface profile and detects bumps, bulges, and indentations as small as 0.001 in. in height or depth. X-y table moves specimen to programmed locations under digital linear variable differential transformer (LVDT) while computer records surface-height readings of LVDT. Resulting graphical display shows surface contour.
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Chern, E. James. 1993-08-01. Automated Surface Profilometer. https://ntrs.nasa.gov/citations/19930000451
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