無孔心軸 的英文怎麼說
中文拼音 [wúkǒngxīnzhóu]
無孔心軸
英文
solid spindle-
In the experiment, we use the he - ne laser and the semiconductor laser as the source, record the bessel beam patterns behind the axicon by using a digital camera and a microscope, measure the radius of the bessel beam central spot by film - scanning and measure the effect of both the radius of the aperture and the open angle of the axicon on the maximum non - diffraction distance. the experiments show that a specific propagating range has constant power and the beam has a bessel - like distribution in this range. the results agree with the beam corresponding to a diffraction free beam
同時我們還採用膠片掃描的方法測量了無衍射光束的中心光斑尺寸，測量了不同光闌孔徑和不同稜角情況下的最大無衍射距離和傳播軸附近橫截面內微小光孔中的光強，實驗結果顯示當激光光束經過軸棱錐轉換後有一段距離功率變化很小，且分佈近似貝塞爾分佈，符合無衍射光束的特性;經過聚焦后，呈現三維分佈中空的光束bottlebeam ，實驗結果與理論分析基本吻合。In the testing, we experiment on a plate with a circle hole ( 2 - dimention ) and a ladder axis with arc transiting ( 3 - dimention ), and compare the former to the result measured by moire method and the later to an aluminum axis with similarity of geometric structure by electric measure method. the results are closed to these of corresponding references. sequentially, it is proved that the theory is reasonable and the method is feasible
在算例方面，論文分別採用光彈性法和電測法對帶中心圓孔無限寬板的平面問題和圓階梯軸的三維問題進行了驗證，並將分析結果與相關文獻進行比較，得到了一致的結果，從而驗證了理論分析的合理性及本方法的正確性。
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