基于FPGA的电缆检测系统设计

Design of cable detection system based on FPGA

在脉冲反射法测电缆长度的基础上,引入数字移相计数技术,用单片FPGA实现了一种高精度的电缆长度测量系统设计。用不同频率对同一电缆进行了测试和分析,实验结果证明了设计的可行性,且计数时钟频率越高,精确度越高。

This paper is about the design of cable length measurement system with high precision,which is based on the pulse reflection method and the digital phase shift counting technique in one FPGA chip.The results of testing and analyzing the measurement of the same cable with different frequencies demonstrated the feasibility of the design,and the results also showed that the higher of the counter-clock frequency was,the higher accuracy of the measurement was.