Variable Configuration Fiber Optic Laser Doppler Vibrometer System Articles uri icon

publication date

  • June 2016

start page

  • 97

end page

  • 106

issue

  • 2

volume

  • 6

International Standard Serial Number (ISSN)

  • 1674-9251

Electronic International Standard Serial Number (EISSN)

  • 2190-7439

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