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介绍了一个由８０３１单片机控制的线纹尺测量系统。该系统利用激光比长仪的机械部分和光路系统，以８０３１单片机为下位机，用其控制自动检测并且计数脉冲，以８０２８６ＰＣ机为上位机，用其进行数据处理并直接打印出检定证书。
Introduced by a 8031 microcontroller line ruler measurement system. The system uses the mechanical part of the laser than the length of the instrument and the optical system to 8031 microcontroller for the next crew, with its automatic control of detection and counting pulses to 80286PC machine for the host computer, with its data processing and print out the test certificate.