介绍了基于绝对式光电码盘的转子位置检测与转速测量的原理和方法。
The theory and method of the rotor position detection and rotation speed based on absolute photoelectric encoder are introduced.
为了改进光电码盘的制作工艺，提高效率，降低成本，提出了一种光电码盘的光刻方法。
To improve the fabrication technology of photoelectrical encoder, the laser lithography method was introduced.
用80C552单片机和光电码盘配合改进的M/T法，检测铸轧辊的执行电机转速可获得大范围内测速精度。
The Improved M/T method with 80C552 and a photo- electricity coder to measure electro-motor' s rotation speed can achieve a large scale of rotation speed measuring precision.
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