TY - GEN
T1 - Two-camera phase measurements using phase-stepped real-time holographic interferometry
AU - Ovryn, Benjie
PY - 1993
Y1 - 1993
N2 - A multiple detector method was developed to extend the capabilities of phase stepped, real-time holographic interferometry to measure two components of a displacement vector simultaneously. To test the method, two experiments were performed which measured the cantilever bending of a piezoelectric ceramic bimorph due to an applied voltage. For the first experiment, the optical axis of one of the cameras was perpendicular to the surface of the bimorph while the optical axis of the second camera formed an angle of 48° ± 1° with respect to the optical axis of the first camera. The bimorph was then rotated so that the angle between the optical axis of the first camera and the surface normal changed by 20° ± 1°. Both the out-of-plane (normal to the surface) and one of the in-plane (tangential) displacement components were resolved for each experiment and the results were compared with the known values.
AB - A multiple detector method was developed to extend the capabilities of phase stepped, real-time holographic interferometry to measure two components of a displacement vector simultaneously. To test the method, two experiments were performed which measured the cantilever bending of a piezoelectric ceramic bimorph due to an applied voltage. For the first experiment, the optical axis of one of the cameras was perpendicular to the surface of the bimorph while the optical axis of the second camera formed an angle of 48° ± 1° with respect to the optical axis of the first camera. The bimorph was then rotated so that the angle between the optical axis of the first camera and the surface normal changed by 20° ± 1°. Both the out-of-plane (normal to the surface) and one of the in-plane (tangential) displacement components were resolved for each experiment and the results were compared with the known values.
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M3 - Conference contribution
AN - SCOPUS:0027795148
SN - 0819411167
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 120
EP - 131
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Podbielska, Halina
A2 - Katzir, Abraham
PB - Publ by Society of Photo-Optical Instrumentation Engineers
T2 - Holography, Interferometry, and Optical Pattern Recognition in Biomedicine III
Y2 - 17 January 1993 through 19 January 1993
ER -