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本文应用信息理论建立莫尔-富氏光场的数学模型,讨论误差对莫尔信号的调制,以期作为规定计量圆光栅质量指标的依据。所得结论对计量长光栅也同样适用。
In this paper, the mathematical model of Mohr - Furthyfield is established by using information theory, and the modulation of Moiré signal by error is discussed in order to serve as the basis for regulating the quality index of circular grating. The conclusion is equally valid for measuring long gratings.