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首页> 外文会议>Current developments in lens design and optical engineering XVII >Low-cost automated system for phase-shifting and phase retrieval based on the tunability of a laser diode
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Low-cost automated system for phase-shifting and phase retrieval based on the tunability of a laser diode

机译：基于激光二极管可调性的低成本用于相移和相位恢复的自动化系统

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摘要

A low-cost and fully automated process for phase-shifting interferometry by continuously changing and turning on-off the input voltage of a laser diode under the scheme of an unbalanced Twyman-Green interferometer setup is presented. The input signal of a laser diode is controlled by a Data Acquisition (NI-DAQ) device which permits to change its wavelength according to its tunability features. The automation and data analysis will be done using Lab VIEW in combination with MATLAB. By using Carre algorithm the phase map is obtained. Measurements of visibility and phase-shift to verify the PSI requirements are also shown.
机译：提出了一种在不平衡的Twyman-Green干涉仪设置方案下，通过连续改变和关闭激光二极管的输入电压的低成本，完全自动化的相移干涉测量方法。激光二极管的输入信号由数据采集（NI-DAQ）设备控制，该设备允许根据其可调性特征更改其波长。自动化和数据分析将结合Lab VIEW进行。通过使用Carre算法，可以获得相位图。还显示了可见度和相移的测量结果，以验证PSI要求。

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