Kim J S, Musazzi S, Perini U, Giglio M
Appl Opt. 1989 May 15;28(10):1862-8. doi: 10.1364/AO.28.001862.
We describe the design, construction, and testing of a dual plate specklegram heterodyne readout system. The choice of the optical layout and mode of operation is based on the results of a detailed discussion on the sources of error associated both with optical noise and misalignments. Noise analysis includes the conventional scintillation noise and a recently described additional source, the speckle grain noise. Stability and reproducibility tests have been conducted and the accuracy of displacement measurement is 10(-6) of the recorded specklegram size, approximately five times worse than the ultimate noise limited value.
我们描述了一种双板散斑图外差读出系统的设计、构建和测试。光学布局和操作模式的选择基于对与光学噪声和对准误差相关的误差源进行详细讨论的结果。噪声分析包括传统的闪烁噪声和最近描述的另一种噪声源，即散斑颗粒噪声。已经进行了稳定性和再现性测试，位移测量的精度为记录散斑图尺寸的10^(-6)，比最终的噪声极限值约差五倍。
