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本文通过对确定等差线非整数条纹级数的光度计补偿法研究,最先探讨了用图象处理机快速测定材料条纹值的两种途径(比暗法与光强法),推导了光强法求条纹级数的公式,并建立了“快速测定材料条纹值系统(即YES系统)”.此外,还研究了另一途径一灰度法.最后,以轴向拉伸板,纯弯曲梁和对径受压圆盘为试件,测定了它们的材料条纹值.用此系统,一次测试只需三、四分钟,且精度高,这为实时光弹性力学奠定了基础.
In this paper, the photometer compensation method for determining the non-integer fringe progression of equidistant lines is studied. The two approaches (the dark method and the light intensity method) for rapid determination of fringe values of materials by image processor are first discussed. Strong law for the fringe series formula, and the establishment of a “rapid determination of material fringe value system (ie YES system)” In addition, another way to study a gray method.Finally, the axial stretch plate, pure bending Beam and the diameter of the disk under pressure as a test specimen, measured their material fringe values using this system, a test only three or four minutes, and high accuracy, which lays the foundation for real-time photoelasticity.