期刊
OPTICS COMMUNICATIONS
卷 367, 期 -, 页码 227-233出版社
ELSEVIER
DOI: 10.1016/j.optcom.2016.01.032
关键词
Vibration measurement; Multiple Self-Mixing Interferometry; Power spectrum; Nanometer measurements
类别
资金
- Natural Science Foundation of Heilongjiang Province, China [E201332]
We propose a novel algorithm for Multiple Self-Mixing Interferometry (MSMI). The algorithm is able to measure nanometer scale vibration by the power spectrum analysis. In the paper, the principles of the method are introduced in detail. The experimental setup has been built. The validity of the proposed algorithm was confirmed by conducting a series of experimental measurements at different reflection times, feedback factors, and vibrational frequencies using PZT as a reference. Experimental results showed that the method can quickly demodulate parameters of vibration and good correspondence between theory and experiment. The proposed algorithm, thus, furnishes nanometer measurements with a very high resolution using a self-aligned, cost effective and compact experimental setup. (C) 2016 Elsevier B.V. All rights reserved.
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