1 October 1988 Flatness Analysis Of Hard Disks
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Optical Engineering, 27(10), 271078 (1988). doi:10.1117/12.7976779
Abstract
The special flatness requirements of hard disks are discussed. Color schlieren and grazing incidence interferometry, the two methods currently dominating the market, are compared with the more recently developed moire deflectometry method. We show that since the color schlieren does not detect vital disk flatness information and since interferometry is too vibration sensitive and relatively expensive, moire deflectometry is a superior method for flatness analysis of hard disks.
Oded Kafri, Kathi Kreske, "Flatness Analysis Of Hard Disks," Optical Engineering 27(10), 271078 (1 October 1988). https://doi.org/10.1117/12.7976779
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