Transient bending waves in a rotating hard disk is measured by means of pulsed TV holography. The speckle motion in the detector plane caused by the rotation is compensated for in the interference phase evaluation. The technique is all electronic and needs no image derotator.
© 2002 Optical Society of America
(090.2880) Holography : Holographic interferometry
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.4290) Instrumentation, measurement, and metrology : Nondestructive testing
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis
Per Gren, "Bending Wave Propagation in Rotating Objects Measured by Pulsed TV Holography," Appl. Opt. 41, 7237-7240 (2002)