转速测试系统的设计与实现

Design and Implement of the Testing System of Rotote-speed

本系统应用８０３且单片机扩展Ｄ／Ａ转换器，产生频率连续可调的正交信号，实现了对某型旋翼转速表的测试。

This system applies 8031 Single - chip computer of expanding DAC to produce frequency adjusted Quadrature waveform,to the rotate speed of autogyro.