The compensative relations between the tilt angular errors and groove - width difference were obtained and the compensative methods were discussed 针对光栅拼接中的转角误差和光栅常数误差，得到了误差间的相互补偿关系式，并对补偿方式进行了讨论。
2.
The error of hall element is analysed and the compensative method is provided ; this paper makes the theoretical analysis of errors producing by the instrument amplifier and a / d converter . we adopt the technology of digital filter and linearization implementing by the neural network method 对霍尔元件的误差进行分析并给出补偿方法；对仪表放大器和a d转换器引起的误差进行了理论分析；采用了数字滤波技术和采用神经网络方法实现的非线性校正技术进行软件补偿。
