Multipoint laser Doppler vibrometry using holographic optical elements and a CMOS digital camera.
A laser Doppler vibrometer (LDV) is described in which holographic optical elements are used to provide the interferometer reference and object illumination beams. A complementary metal-oxide semiconductor camera, incorporating a digital signal processor, is used to carry out real-time signal processing of the interferometer output to allow multipoint LDV to be implemented.
Connelly
Michael J
MJ
Department of Electronic and Computer Engineering, Optical Communications Research Group, University of Limerick, Limerick, Ireland. michael.connelly@ul.ie
Szecówka
Przemyslaw M
PM
Jallapuram
Raghavendra
R
Martin
Suzanne
S
Toal
Vincent
V
Whelan
Maurice P
MP
D004867:Equipment Design; D019544:Equipment Failure Analysis; D006696:Holography / Q000295:instrumentation* / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation* / Q000379:methods; D017078:Laser-Doppler Flowmetry / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012666:Semiconductors; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*