The Measurement System for Particle Size on Surface of Hard Disk Drive based on Experimental Light Scattering of BRDF Simulation

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Published: Aug 1, 2010
DOI: https://doi.org/10.37936/ecti-eec.201192.172506
Keywords:
Scattering Intensity BRDFpart Simulation Model Mie Scattering Theory Particle Sizes Particle Types

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Mongkol Wannaprapa
Department of Electrical Engineering, Faculty of Engineering, Thammasat University Rangsit Campus
Narongpun Rungcharoen
Department of Electrical Engineering, Faculty of Engineering, Thammasat University Rangsit Campus
Wanchai Pijitrojana
Department of Electrical Engineering, Faculty of Engineering, Thammasat University Rangsit Campus

Abstract

This work aims to obtain the perfectly measurement system for 200-600 nanometer of particle size, type of SiO2 on surface of Lubricant (n20D ) recording media of hard disk drive, at 448 and 635 nm of incident wavelength. This system uses an incident and reflective angles equally, 89o, based on the principle of Mie scattering theory. Moreover, the system is applied to compare an intensity value of scattered light between of BRDFpart simulation model and of experiment result of David W. Hahn light scattering. For the conclusion, this system could measure the particle sizes and types accurately and efficiently.

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How to Cite
Wannaprapa, M., Rungcharoen, N., & Pijitrojana, W. (2010). The Measurement System for Particle Size on Surface of Hard Disk Drive based on Experimental Light Scattering of BRDF Simulation. ECTI Transactions on Electrical Engineering, Electronics, and Communications, 9(2), 284–291. https://doi.org/10.37936/ecti-eec.201192.172506
Issue
Vol. 9 No. 2 (2011): Regular Issue
Section
Research Article

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References

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