As a measurement technique of instantaneous 2-D velocity flow field,particle image velocimetry( PIV)has received much attention in detailed flow field measurement,but mature product of PIV is still expensive. In view of this,we introduce a simple device which consists of high-speed digital camera,laser transmitter,cylindrical lens and tracer particle. The fuctions of business PIV product can be achieved with low cost. To verify the simple PIV performance in this paper,we designed a simple device and analyze...
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