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4D dynamic laser interferometers play critical roles in the development and production of hard disk drives. 4D systems measure the flatness and surface shape of magnetic media, including both sides of glass media in a single setup.

4D dynamic interferometers measure flatness, surface shape and performance of magnetic media for hard disk drive metrology applications

Fast acquisition enables measurement of spinning disks, to accurately assess the performance of spindles, hubs, motors and media. Capable of measuring in the presence of significant vibration and air turbulence, 4D systems are equally at home in the lab or clean room, or on the production floor.

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