Open AccessJournal Article
Research of All-fiber Single-mode Velocity Interferometer
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Based on the principle of all-fiber single-mode velocity interferometer, a set of experiment equipment was assembled successfully, which was made up of singlemode fiber and coupler.Abstract:
Based on the principle of all-fiber single-mode velocity interferometer,a set of experiment equipment was assembled successfully,which was made up of single-mode fiber and couplerIn the experiment,the all-fiber single-mode velocity interferometer realized the measurement of high velocity with a deviation of 14% from a laser vibrometerIn the Hopkinson bar striking experiment,when the reference velocity is 2086m/s,the measurement result is 2057m/sThe feasibility of velocity interferometer is provedread more
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The Application of Doppler Laser Vibrometer in the Engine NVH Dynocell Test
TL;DR: In this article, the Doppler laser vibrometer was used in the non-contact measurement of the engine surface vibration, and the relative error of these results and the main influence factors can be investigated by comparing the result of different measurement ways.