A method for separate recording of rationally related vibration frequencies is presented. To record and measure the mode shape of vibrations, a synchronized stroboscopic CCD camera is used. Synchronization and control of the camera acquisition for recording stroboscopic holographic sequence has been realized. The phase for different states of the object vibration is calculated using the Fourier-transform method. Experimental results are presented, and the advantages and disadvantages of the proposed method are discussed.
© 2009 Optical Society of America
Instrumentation, Measurement, and Metrology
Original Manuscript: February 27, 2009
Revised Manuscript: May 11, 2009
Manuscript Accepted: May 23, 2009
Published: June 12, 2009
Igor Alexeenko, Michael Gusev, and Vadim Gurevich, "Separate recording of rationally related vibration frequencies using digital stroboscopic holographic interferometry," Appl. Opt. 48, 3475-3480 (2009)