Centroid Detection Using Optical Mask and Single Point Detector

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2024-10-01 DOI:10.1109/LPT.2024.3471772

Zhaocong Li;Xiaosong Wu;Linhai Huang;Naiting Gu

引用次数: 0

Abstract

In this letter, we report a high-frequency centroid sensor employing an optical mask with gradient-varying transmittance and a single point detector. In contrast to pixel array detectors, the centroid detection of this sensor is accomplished by a single point detector, which has higher sampling speed. We developed a mathematical model of optical mask-based centroid detection and verified its validity through simulation. Then, we built an experimental platform and realized high-accurate centroid detection. The experimental results indicate that the root-mean-square error (RMSE) is less than

$1.12~\boldsymbol {\mu }$

m, and the temporal sampling frequency is up to 500 kHz. Its high-frequency detection capability can serve as Malley probe in the field of aero optics, and other application scenarios that demand high detection frequency.

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使用光学掩膜和单点探测器进行中心点检测

在这封信中，我们报告了一种高频中心点传感器，它采用了具有梯度变化透射率的光学掩膜和单点检测器。与像素阵列检测器相比，该传感器的中心点检测由单点检测器完成，其采样速度更高。我们建立了基于光学掩膜的中心点检测数学模型，并通过仿真验证了其有效性。然后，我们搭建了一个实验平台，实现了高精度的中心点检测。实验结果表明，均方根误差（RMSE）小于 1.12 美元，时间采样频率高达 500 kHz。它的高频探测能力可以作为马利探测器在航空光学领域以及其他对探测频率要求较高的应用场景中发挥作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.