一种快速高精度三线阵CCD三维轮廓术

文中提出一种新的快速三维轮廓测量方法,将三个1024像素的光敏元阵列等间距封装在一起,无须通常的机械或电子式的移相操作,只要物体的位移量和空间采样间隔满足整数倍的比例关系,一次性连续扫描采样就可以获得三幅相位图。通过三路DSP处理器自动计算,就可完成整个测量过程。实验结果表明,本文提出的三线阵CCD相位测量系统具有较高的测量精度和测量速度,有很高的实用价值。

A Fast 3D Profilometry with High Precision by Using of Three Lines CCD

A new fast 3D p rofilometry is presented in this paper. Three lines CCD arrays, 1024 pixels each, are mounted togetherwith the same distance intervals. Needless to perform phase shift operations, the CCD can consecutively scan and grab 3 phase distributed p ictures which will be separately calculated by 3 DSP processors. Thus the whole measurement process is finished. The experimental results show that the phase measurement system by using 3 lines CCD has high app lication values for its high precision and speed.