重点介绍了光栅数字地震检波器的结构设计、理论分析、辨向细分技术等。
Configuration design, theory analysis, directions distinguish and subdivision technology are presented as emphasis.
最后我们通过选用一片FPGA芯片来实现编码器信号的计数和辨向功能。
Last, we choose a chip which belongs to FPGA to take count of and discern signals of encoder.
增量式光电位移传感器需辨向，一般给出的为硬件辨向电路。
The incremental photoelectric shift sensor needs to recognize direction, which is often done by the circuit of direction recognition with hardware.
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