Detection voltage PSD (distance PSD-VCSEL 20 cm) with collimation

The dataset contains the voltage measured by a PSD (Position Sensing Detector) depending on the x-position of a VCSEL light source (850 nm). The VCSEL is <strong>collimated</strong>, and at a <strong>z-position of 20 cm of the PSD</strong>. The aim is to compare the detection by the PSD of the light spot collimated or not, at different distances. A mean is computed on the data the get one voltage value at the end.本数据集收录了位置传感探测器（Position Sensing Detector，PSD）测得的电压信号，该信号随垂直腔面发射激光器（Vertical-Cavity Surface-Emitting Laser，VCSEL）光源的x轴位置变化，光源波长为850 nm。该VCSEL光源为**准直光束**，且与PSD的**轴向间距为20厘米**。本研究旨在对比PSD在不同间距下，对准直与非准直光斑的探测效果。我们将对数据集求取平均值，最终得到单一组电压值。