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| Analysis of Influencing Factors on Measurement Accuracy of Particle Image Velocimetry Technology |
| LIU Bing1,2,CUI Li-shui2,LI Xiao-ting1,WANG Yi3 |
1. College of Quality and Technical Supervision,Hebei University,Baoding,Hebei 071002,China
2. National Institute of Metrology,Beijing 100029,China
3. Beijing Great Wall Measurement and Test Technology Research Institute of AVIC,Beijing 100095,China |
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Abstract The instantaneous full flow field measurement method for particle image velocimetry(PIV) is reviewed.The working principle of PIV, the key link of the technology(the quality of the obtained image), and the main factors influencing the measurement accuracy (the performance of tracer particles, light source performance,background noise, imaging distortion, time resolution of synchronizer and image processing algorithm) are systematically introduced.Based on the above analysis, specific suggestions are proposed on the guarantee of the performance of tracer particles, the selection of imaging components and the determination of image processing method.
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Received: 30 April 2020
Published: 23 March 2021
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2021, Vol. 42 
