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6 August 2014Research on the design of surface acquisition system of active lap based on FPGA and FX2LP
In order to research the dynamic surface shape changes of active lap during the processing, this paper introduces a
dynamic surface shape acquisition system of active lap using FPGA and USB communication. This system consists of
high-precision micro-displacement sensor array, acquisition board, PC computer composition, and acquisition circuit
board includes six sub-boards based on FPGA, a hub-board based on FPGA and USB communication. A sub-board is
responsible for a number of independent channel sensors’ data acquisition; hub-board is responsible for creating encoder
simulation tools to active lap deformation control system with location information, sending synchronization information
to latch the sensor data in all of the sub-boards for a time, while addressing the sub-boards to gather the sensor data in
each sub-board one by one and transmitting all the sensor data together with location information via the USB chip
FX2LP to the host computer. Experimental results show that the system is capable of fixing the location and speed of
active lap, meanwhile the control of surface transforming and dynamic surface data acquisition at a certain location in the
processing is implemented.
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Hongshen Zhao, Xiaojin Li, Bin Fan, Zhige Zeng, "Research on the design of surface acquisition system of active lap based on FPGA and FX2LP," Proc. SPIE 9281, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 92812T (6 August 2014);