【摘要】 用线阵CCD作为光电传感器非接触测量材料拉伸过程中的变形量,不但比常规的引伸计测量的方法更客观,而且可以测量材料拉伸变形到断裂的全过程。该方法能在X和Y两个方向上同时测量材料变形量,可以获得材料在实验的全过程中两个方向的"应力-应变"关系曲线。采用CCD拼接技术,测量精度可达到1mm,测量范围80mm。更多还原

【Abstract】 Measurement of the deformation quantity of a material during stretching process by using linear CCD detectors in non-contact mode, not only is more objective than the common extensometer measurement method, but also can measure the whole process from stretching deformation to breaking .The deformation quantity of a material can be simultaneously measured at both direction of X and Y and the stress-strain curves of the both direction during the whole experimental process of a material can be obtained. With CCD splicing technique, the measuring accuracy can be reached 1mm and measuring range 80mm.更多还原