用激光干涉法测量长度的智能化处理技术研究

RESEARCH ON INTELLIGENTIZED TECHNOLOGY FOR MEASUREMENT OF LENGTH OF BY LASER INTERFEROMETRY

介绍利用激光干涉与数字图像处理技术以及应用 FFT分析干涉条纹方法 ,分析并解决测量端面长度标准中条纹图的处理技术。应用这种方法不但提高了测试过程的自动化程度 ,而且大大地提高了测量精度。

Based on laser interference digital image processing technology and the FFT method, the problem in automatic interference fringe processing for measurement of length of surface standard is analyzed and solved by interferometry. It makes the instrument less dependent on operator skill and is able to provide greater accuracy. Testing result of interference fringe's fractions for measurement of Length of Surface Standard gauge block is given as a example.