产生能够细分的原始信号对于高分辨率和高精度角度测量来说是十分重要的。利用莫尔现象产生的信号在很大程度上能满足这些要求。它的特点主要是它的正弦波形中谐波成分很小,此外由于它是对大量分度线积分的结果,因而消除了各分度线的误差。如果在长度测量仪上主要利用纵向或扭转 Producing the original signal that can be subdivided is important for high-resolution and high-precision angle measurements. The signals generated by the moiré phenomenon largely satisfy these requirements. Its main feature is that its sinusoidal waveform in the harmonic component is very small, in addition because it is the result of a large number of indexing line integration, thus eliminating the error of each index line. If the main use of length measuring instrument longitudinal or torsion