Computer rigid disk surface assessment with laser interferometry using DDS
Document Type
Article
Publication Date
8-1-1996
Abstract
Laser interferometry in conjunction with the data dependent systems (DDS) methodology is first used in this paper to eliminate errors caused by instrumentation and software, and to recover the surface topography of a computer rigid disk used for illustration. The DDS methodology is then applied once more to decompose the surface height profile into a series of exponential and sinusoidal modes. The significant modes are related to the waviness and surface roughness resulting from different manufacturing processes. Surface reconstruction using only the important modes is presented. This provides a visual as well as mathematical description of the resultant effect of each process. The methodologycan characterize very complex surface textures, reducing the reliance on complicated and expensive instruments needed for inspection, and replacing them with relatively inexpensive but reliable computation. © 1996 by ASME.
Publication Title
Journal of Manufacturing Science and Engineering, Transactions of the ASME
Recommended Citation
Pandit, S.,
Jordache, N.,
&
Joshi, G.
(1996).
Computer rigid disk surface assessment with laser interferometry using DDS.
Journal of Manufacturing Science and Engineering, Transactions of the ASME,
118(3), 448-455.
http://doi.org/10.1115/1.2831053
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/11570