Velocity measurement based on multiple self-mixing interference

被引：20

作者：

Zhang, Xiuyan ^{[1
]}

Gu, Wanying ^{[1
]}

Jiang, Chunlei ^{[1
,2
]}

Gao, Bingkun ^{[1
]}

Chen, Peng ^{[1
]}

机构：

[1] Northeast Petr Univ, Coll Elect & Informat Engn, Daqing 163318, Peoples R China

[2] Harbin Inst Technol, Sch Elect Engn & Automat, Harbin 150001, Heilongjiang, Peoples R China

来源：

APPLIED OPTICS | 2017年 / 56卷 / 23期

关键词：

LASER-DIODE; ANGLE MEASUREMENT; OPTICAL FEEDBACK; INTERFEROMETRY; VIBROMETER; VIBRATION; VELOCIMETRY; TRACKING;

D O I：

10.1364/AO.56.006709

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This study proposes a novel algorithm based on the multiple self-mixing interference (MSMI) theory to measure the velocity of a remote target without contact. The principle of MSMI is presented and the corresponding formulas for velocity measurement are derived. Fast Fourier transform is applied to detect signal frequency and calculate velocity values. A low-cost, compact, and easy-to-operate experimental setup is also constructed. Experiments are conducted to validate the correctness of our algorithm. This algorithm can improve resolution more easily than conventional self-mixing interference methods. (C) 2017 Optical Society of America

引用

页码：6709 / 6713

页数：5

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