reference grating 中文意思是什麼
reference grating
解釋
參考柵-
This method has some characters : during recording of the transmissive holograms the holographic grating placed in front of the holographic plate closefittingly is used as a spectroscope. the transmissive wave is served as the object wave and the diffraction wave through the holographic grating or the deflective reflect wave produced by the silicon slice is served as the reference wave, therefore the hologram is named as self - reference image hologram. the recording results are the off - axis holograms and the twin images can be separated successfully
在記錄透射型全息圖時，將全息光柵緊貼置於記錄干板之前，而光柵起到了分光的作用，直透波作為全息圖的物光波，參考光是物光通過光柵后產生的衍射波；記錄反射型全息圖時將矽片置於記錄干板之後，利用反射矽片產生離軸參考光，因此系統僅需一束照明光束，參考光來自物光本身，因此稱之為自參考像全息圖。 -
Base on the analysis of the grating linear displacement measurement theory, the measure errors especially the subdivision error of the grating scale, this paper focuses on the theory of switch and merge of dual grating scales ’ signals, builds the design criteria of high speed high precision displacement measurement by using dual grating sales, designs the switch picking reference with high precision and fast switch and merge method, analyses the errors brought in by switch and merge of the duals grating scales
在分析光柵線性位移測量原理、光柵尺的測量誤差尤其是細分誤差的基礎上，本文重點研究雙光柵尺切換與合成的原理，建立了基於雙光柵尺高速高精度位移測量的設計準則，根據設計準則設計了切換基準拾取方法以及快速切換與合成方法，分析了雙光柵計數值切換合成的誤差。 -
Error analysis in fbg ' s differing temperature and strain measurement of reference grating method
參考光柵法分離光纖光柵溫度和應變的誤差分析 -
After the discussion of the switch reference, the characteristic and regularity of the switch and merge by dual grating scales, this paper designs the hardware circuit to execute the method of dual grating scales ’ dual measuring, count values switch and merge, designs different circuit module of the dual grating scales ’ s signal process based on fpga, such as the quadruple module, the speed identify module, the switch module, the merge process module
經過對雙光柵計數切換基準、切換與合成特徵和規律的探討，本文設計了實現雙光柵尺雙重測量、計數值切換合成法的硬體電路，主要通過可編程晶元fpga ，設計了雙光柵尺信號處理的各電路模塊，如雙光柵尺信號四倍頻辨向模塊、速度判斷模塊、切換模塊、計數值合成處理模塊。
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