1.前言有周期形状的精密机械零件如齿轮、螺纹、盘条等,其螺距(周节)精度是影响其性能的重要因素之一。因此,塔尼缪拉和其它一些人提供了一种用全息干涉测量螺纹螺距的方法。然而,由于他们在研究中用的是卤化银底片,所以用他们的方法得到一张全息图需要很长的时间。为了解决这一问题,本文提出了一种用热 1. Introduction Precision mechanical components with periodic shapes such as gears, threads, wire rods, etc., whose pitch (pitch) accuracy is an important factor affecting its performance. As a result, Tanimurat and others provided a method of measuring thread pitch using holographic interference. However, because they used silver halide negatives in their research, it took a long time to get a hologram with their method. In order to solve this problem, this paper presents a use of heat