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High-Resolution, Non-Contact Angular Measurement System For Psa/Rsa, Ronald D. Sloat
High-Resolution, Non-Contact Angular Measurement System For Psa/Rsa, Ronald D. Sloat
Master's Theses
A non-contact angular measurement system for Pitch Static Attitude (PSA) and Roll Static Attitude (RSA) of hard disk drive sliders is designed and built. Real-time sampling at over 15 KHz is achieved with accuracy of +/- 0.05 degrees over a range of approximately 2-3 degrees. Measuring the PSA and RSA is critical for hard drive manufacturers to control and improve the quality and reliability of hard drives. Although the hard drive industry is able to measure the PSA and RSA at the subassembly level at this time, there is no system available that is able to measure PSA/RSA at the …