| Title of Article |
Scratch and Surface Roughness Detection on Magnetic Disk by using Red and Blue Light Reflection Approach |
| Date of Acceptance |
7 August 2020 |
| Journal |
| Title of Journal |
International Journal of Engineering Research and Technology |
| Standard |
SCOPUS |
| Institute of Journal |
International Journal of Engineering Research and Technology |
| ISBN/ISSN |
2278-0181 |
| Volume |
9 |
| Issue |
8 |
| Month |
August |
| Year of Publication |
2020 |
| Page |
567-576 |
| Abstract |
In hard disk drive (HDD) manufacturing processes, a quality inspection mainly focuses on detecting the scratches on the magnetic disk since it could essentially affect the read/write ability of the HDD. In this research, a non-destructive technique using light reflection technique to detect the scratch on the magnetic disk is proposed. The red and blue laser diodes are performed as a detector to identify the size and position of scratches where an optimistic intensity of laser power is measured. It is clearly indicated that the scratches on the magnetic disk can be experimentally detected by this newly invented instrument. The size and position of scratches can be also examined by using either red or blue laser. It is intriguingly found from the laser power intensity analysis that the detected signal is independent on distance between magnetic disk and laser source. The scratched characteristics are well agreed with those obtained from Scanning Electron Microscope (SEM) and Stereoscopic Microscope (SM). One of its advantages is that it is able to utilize during the fly testing in order to rejection of damaged disk prior to further HDD manufacturing process. |
| Keyword |
Hard disk drive, Light reflection technique, Magnetic disk, Scratches detection |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
true |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Publication
Journal Publication
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