Open AccessNon-contact all-fiber optic laser Doppler accelerometer
Author(s) -
Xiongxing Zhang,
Ya-dong Jing Ya-dong Jing,
Wei Wang,
Haibin Chen,
Zhibo Ma,
Jiashuang Feng,
Zhen Guo
Publication year - 2019
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.019887
Subject(s) - optics , acceleration , accelerometer , optical fiber , fiber laser , fiber optic sensor , materials science , laser doppler vibrometer , doppler effect , laser doppler velocimetry , laser , graded index fiber , acoustics , physics , laser beams , medicine , blood flow , classical mechanics , quantum mechanics , astronomy
A non-contact all-fiber optic acceleration measurement system has been proposed in this work. Using a fiber delay line in the fiber-optic path, the difference between two Doppler shifted frequencies of a laser beam corresponding to two different velocities of a moving object with a fixed time delay was measured and used for acceleration extraction. By performing acceleration measurements for a piezoelectric ceramic oscillator driven by an open-loop piezo controller at different voltages, a measurement error of better than -3.766% and nonlinearity degree of 0.314% were achieved.