Synchronous measurement of three-dimensional deformations by multicamera digital speckle patterns interferometry

2016 ◽  
Vol 55 (9) ◽  
pp. 091408 ◽  
Author(s):  
Yonghong Wang ◽  
Jianfei Sun ◽  
Junrui Li ◽  
Xingya Gao ◽  
Sijin Wu ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Speckle Patterns ◽  
Digital Speckle ◽  
Synchronous Measurement

Synchronous Measurement of Three-Dimensional Deformations Using Tri-Channel Spatial-Carrier Digital Speckle Pattern Interferometry

2017 ◽  
Vol 868 ◽  
pp. 316-322 ◽  
Author(s):  
Yao Fang ◽  
Si Jin Wu ◽  
Lian Xiang Yang
Keyword(s):  
Speckle Pattern ◽  
Three Dimensional ◽  
Deformation Measurement ◽  
Phase Shifting ◽  
Full Field ◽  
Digital Speckle Pattern Interferometry ◽  
Rapid Measurement ◽  
Optical Arrangement ◽  
Digital Speckle ◽  
Synchronous Measurement

Spatial-carrier digital speckle pattern interferometry (SC-DSPI) has proven to be a competitive tool for full-field deformation measurement. Comparing with traditional phase-shifting digital speckle pattern interferometry, SC-DSPI has the advantage of rapid measurement which guarantees that dynamic deformations can be precisely measured. In this article, a tri-channel SC-DSPI that measures three-dimensional deformations synchronously is introduced. Measuring algorithm as well as optical arrangement is described in detail. Experiments are carried out to verify the validity and evaluate the performance of the proposed technique.

Dynamic simulation of wind field in three-dimensional display space considering particle swarm algorithm fuzzy logic

2021 ◽  
pp. 1-6
Author(s):  
Honglei Xu ◽  
Linhuan Wang
Keyword(s):  
Fuzzy Logic ◽  
Dynamic Simulation ◽  
Wind Field ◽  
Three Dimensional ◽  
Measurement Data ◽  
Particle Swarm ◽  
Particle Swarm Algorithm ◽  
Three Dimensional Display ◽  
Swarm Algorithm ◽  
Synchronous Measurement

In order to improve the accuracy of dynamic detection of wind field in the three-dimensional display space, system software is carried out on the actual scene and corresponding airborne radar observation information data, and the particle swarm algorithm fuzzy logic algorithm is introduced into the wind field dynamic simulation process in three-dimensional display space, to analyze the error of the filtering result in detail, to process the hurricane Lily Doppler radar measurement data with the optimal adaptive filtering according to the error data. The three-dimensional wind field synchronous measurement data obtained by filtering was compared with three-dimensional wind field synchronous measurement data of the GPS dropsonde in this experiment, the sea surface wind field measurement data of the multi-band microwave radiometer, and the wind field data at aircraft altitude.

Spatial carrier color digital speckle pattern interferometry for absolute three-dimensional deformation measurement

2017 ◽  
Vol 56 (6) ◽  
pp. 066107 ◽  
Author(s):  
Xinya Gao ◽  
Yonghong Wang ◽  
Junrui Li ◽  
Xizuo Dan ◽  
Sijin Wu ◽  
...  
Keyword(s):  
Speckle Pattern ◽  
Three Dimensional ◽  
Deformation Measurement ◽  
Digital Speckle Pattern Interferometry ◽  
Digital Speckle
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