Variable configuration fiber optic laser doppler vibrometer system

Julio E. Posada-Roman; David A. Jackson; Jose A. Garcia-Souto

doi:10.1007/s13320-016-0293-0

Photonic Sensors ›› 2015, Vol. 6 ›› Issue (2) : 97 -106. DOI: 10.1007/s13320-016-0293-0

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Variable configuration fiber optic laser doppler vibrometer system

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Abstract

A multichannel heterodyne fiber optic vibrometer is demonstrated which can be operated at ranges in excess of 50 m. The system is designed to measure periodic signals, impacts, rotation, 3D strain, and vibration mapping. The displacement resolution of each channel exceeds 1 nm. The outputs from all channels are simultaneous, and the number of channels can be increased by using optical switches.

Keywords

Laser Doppler / vibration / digital processing / nanometer resolution / multiplexing / optical fiber

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Julio E. Posada-Roman, David A. Jackson, Jose A. Garcia-Souto. Variable configuration fiber optic laser doppler vibrometer system. Photonic Sensors, 2015, 6(2): 97-106 DOI:10.1007/s13320-016-0293-0

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