.A displacement sensor of dual-light based on FPGA[J].Optoelectronics Letters,2007,3(4):294-298 A displacement sensor of dual-light based on FPGA HE Ming-xia ZHANG Wei-na ZHANG Xu StateKeyLaboratoryofprecisionMeasurementTechnology and Instruments,Tianjin University,Tianjin300072,China Abstract:       The dual-light displacement sensor is presented to obtain a higher accuracy compared with the single. The structure and principle of the system are also introduced, and the hardware and software are brought in too. The function of the system is feasible through the experiments and simulating the data process based on FPGA. Hits: 3575 Download times: 176 View Full Text    Download reader