Listar Facultad Regional Delta por autor "Aguilar, Andrés"
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Transparent glass slab thickness measurement by binary-spot focus signal
Aguilar, Andrés; Torga, Jorge Román (2019-12-12)Focus error systems based on the astigmatic principle relying on four quadrant photo detectors as the signal generation element have widely been used in many different applications. Nevertheless, its working principle ...