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Data Storage
In the data storage industry, laser Doppler vibrometers are widely used for:
- Quality control
- Modal analysis for FE model validation - laser Doppler vibrometry is the only practical method for obtaining data for modal analysis
- Analysis of dynamic processes
- Media & Substrate Characterization (nano-defect and surface topography)
Data Storage Application Notes and Articles
Minimize Disturbances by Design Optimization of Air Flow in the Read/Write Unit of Hard Disk Drives Using Laser-Doppler Vibrometry (Article by B. Feliss and F. Hendriks, InFocus 1/2009)
Scanning for Nano Defects Measuring Nano-Defects on Hard Disk Drive Platters Using Laser-Doppler Vibrometry (Article by E. Lawrence and I. Freeman, InFocus 2/2008)
Investigation of Resonance Effects Application Note VIB-D-01: LDV Investigation of Unstable Air Bearing Resonance Effects on Low Flying Heads
Targeting the Limits of Laser Doppler Vibrometry (M. Johansmann, G. Siegmund, M. Pineda, IDEMA Conference, Japan 2005)
Non-Destructive Quality Control for Hard Disk Components Application Note TOP-01: Non-Destructive Quality Control for Hard Disk Components using the TopMap White Light Interferometer
Hard Disk Noise Investigation Pinning Down the Source of the Noise with the Aid of Laser Scanning Vibrometer Technology (from LM INFO Special 2/2004)
Higher Density, Higher Performance Synchronization of Measurements on Hard Disk Drives Helps us Understand Complex Mechanical Relationships (by Jim Eckerman, LM INFO Special Issue 2/2004)