频闪全息干涉测量术:数字技术的应用

来源 :激光与光电子学进展 | 被引量 : 0次 | 上传用户:mynameiscaohaoxiang
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全息干涉测量术目前广泛用于振动物体的研究。最简单的方法是时间平均全息干涉测量术,它给出与物体运动几率密度函数有关的干涉条纹图样。然而,随着级数的增大,时间平均干涉条纹强度很快下降。另外,时间平均全息干涉测量术不能给出有关振动位相的任何信息,所以在任何给定时间内不含糊地确定物上某点运动方向是不可能的。
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