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The study of experimental results of scattering light compared to brdf simulation for the measurement system design of particle size on surface of components of hard disk drive

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3 Author(s)
M. Wannaprapa ; Department of Electrical Engineering, Thammasat University Rangsit Campus, Klong Luang, Pathumthani 12120, Thailand ; N. Rungcharoen ; W. Pijitrojana

This work aims to obtain the well-implemented measuring system to characterize particle of sizes ranged from 200-600 nm, type of SiO2 [1], on surface of Lubricant (nD20) recording media [2], at 635 nm of wavelength of incident light. The system has an incident and reflective angles at 89 which is based on the principle of Mie scattering theory [3]. Moreover, the intensities of scattered light from simulations based on BRDFpart [4] are compared to the results of experiments from David W. Hahn [5]. For the conclusion, the system based on our design will be implemented to measure the particle sizes and types accurately and efficiently.

Published in:

Electrical Engineering/Electronics Computer Telecommunications and Information Technology (ECTI-CON), 2010 International Conference on

Date of Conference:

19-21 May 2010