介绍转轴编码器的原理，从而提出面板中按键和转轴编码器的混合矩阵连接方案。
A matrix connection of the panel using buttons and rotating shaft encoders is developed after the principle of rotating shaft encoders is introduced.
主要介绍了旋转编码器的工作原理，通过8051单片机来累计旋转编码器被刮水器转轴带动所产生的脉冲数，将其换算转化为角度，从而达到测量刮水器转角的目的。
Making use of rotary encoder attains the purpose of measuring rotative Angle of wiper through single chip computer 8051 to count the pulse of rotary encoder generating, which is drove by wipers axle.
使用增量式光电编码器测量电机位置的伺服系统中，在电机启动时，普遍存在无法准确测量出电机转轴初始位置的问题。
The inaccurate measurement of initial position of motor rotor when the motor starts is a problem existing in a servo system applying increment photo-electricity pulse coder.
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