scholarly journals Self-mixing birefringent dual-frequency laser Doppler velocimeter

2017 ◽  
Vol 25 (2) ◽  
pp. 560 ◽  
Author(s):  
Junbao Chen ◽  
Hongbin Zhu ◽  
Wei Xia ◽  
Dongmei Guo ◽  
Hui Hao ◽  
...  
Keyword(s):  
Laser Doppler ◽  
Laser Doppler Velocimeter ◽  
Dual Frequency ◽  
Frequency Laser

scholarly journals Self-mixing dual-frequency laser Doppler velocimeter

2014 ◽  
Vol 22 (3) ◽  
pp. 3600 ◽  
Author(s):  
Chih-Hao Cheng ◽  
Lyu-Chih Lin ◽  
Fan-Yi Lin
Keyword(s):  
Laser Doppler ◽  
Laser Doppler Velocimeter ◽  
Dual Frequency ◽  
Frequency Laser

scholarly journals Dual-frequency laser Doppler velocimeter for speckle noise reduction and coherence enhancement

2012 ◽  
Vol 20 (18) ◽  
pp. 20255 ◽  
Author(s):  
Chih-Hao Cheng ◽  
Chia-Wei Lee ◽  
Tzu-Wei Lin ◽  
Fan-Yi Lin
Keyword(s):  
Noise Reduction ◽  
Speckle Noise ◽  
Laser Doppler ◽  
Laser Doppler Velocimeter ◽  
Dual Frequency ◽  
Frequency Laser ◽  
Speckle Noise Reduction

Birefringent dual-frequency laser Doppler velocimeter using a low-frequency lock-in amplifier technique for high-resolution measurements

2016 ◽  
Vol 55 (16) ◽  
pp. 4423 ◽  
Author(s):  
Hongbin Zhu ◽  
Junbao Chen ◽  
Dongmei Guo ◽  
Wei Xia ◽  
Hui Hao ◽  
...  
Keyword(s):  
High Resolution ◽  
Low Frequency ◽  
Laser Doppler ◽  
Laser Doppler Velocimeter ◽  
Dual Frequency ◽  
Frequency Laser ◽  
Lock In

Study on Doppler Velocity Measurement System

2012 ◽  
Vol 562-564 ◽  
pp. 1240-1243
Author(s):  
Jian Chao Li ◽  
Jun Hong Su ◽  
Ming Gao
Keyword(s):  
Measurement System ◽  
Velocity Measurement ◽  
High Speed ◽  
Processing System ◽  
Measurement Range ◽  
High Accuracy ◽  
Laser Doppler ◽  
Doppler Velocity ◽  
Dual Frequency ◽  
Frequency Laser

In order to satisfy the high accuracy velocity measurement requirement, using the improved dual-frequency laser Doppler velocity measurement principle, designed a set of laser Doppler velocity measurement system. System consists of two parts: optical system and signal acquisition and processing system. Through the establishment of dual-frequency laser Doppler velocity measurement experimental platform for testing, the result shows that the method can be carried on the high accuracy velocity measurement which in high speed move object. Measurement range from 0.1 m/s to 50 m/s, the error is less than 2 percent and it could increase the speed measurement range.

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