Velocity measurement by a self-mixing laser diode using speckle correlation

被引：0
|
作者：
Özdemir, SK [1 ]
Ito, S [1 ]
Takamiya, S [1 ]
Shinohara, S [1 ]
Yoshida, H [1 ]
Sumi, M [1 ]
机构：
[1] Shizuoka Univ, Hamamatsu, Shizuoka 4328561, Japan
来源：
IMTC/99: PROCEEDINGS OF THE 16TH IEEE INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, VOLS. 1-3 | 1999年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We propose a new self-mining laser diode (SM-LD) speckle velocimeter based on autocorrelation. SM-LD launches and receives reflected light from a moving surface which has a random reflection profile. The speckle signals obtained from SM-LD are processed using autocorrelation, The linear relation between the velocity and the correlation length of the Speckle intensity fluctuations allows the determination of the velocity of the target easily, The range of the investigated velocity is 20mm/s to 450mm/s.
引用
收藏
页码：1756 / 1760
页数：5
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