基于FPGA的InGaAs图像传感器光谱采集驱动系统设计  

Design of InGaAs Image Sensor Spectrum Acquisition Drive System Based on FPGA

作　　者：颜宗强 薛萌 朱亮庆 郭汉明[1] YAN Zongqiang;XUE Meng;ZHU Liangqing;GUO Hanming(School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《软件导刊》2023年第12期161-166,共6页Software Guide

基　　金：上海市地方能力建设项目(21010502900)。

摘　　要：针对近红外拉曼光谱检测,设计了一种以InGaAs图像传感器为核心,基于FPGA主控的光谱采集驱动系统。该系统相较于单通道输出传感器的不同之处在于,输出特点为奇偶交错双通道信号,首先利用FPGA完成系统内部时序的驱动控制;然后经过ADC模数转换芯片模拟系统输出信号并进行采集转换,Dpram模块对数据进行存储排序;最后利用串口实时传输光谱数据。实验表明,系统采集效果良好,积分时间可调,硬件电路与软件集成度较高,在近红外拉曼光谱采集系统中具有较高的应用价值。A spectrum acquisition and driving system based on InGaAs image sensor and FPGA control was designed for near-infrared Raman spectroscopy detection.The difference between this system and a single channel output sensor is that the output feature is odd even interleaved dual channel signal output,which uses FPGA to complete the driving control of the internal timing of the system;Simulate the output signal of the system through ADC analog-to-digital conversion chip and perform collection and conversion,and store and sort the data through Dpram module;Real time transmission of spectral data through serial port.The experiment shows that the system has good collection performance,ad⁃justable integration time,high integration of hardware circuit and software,and has high application value in near-infrared Raman spectrosco⁃py collection systems.

关 键 词：InGaAs图像传感器 奇偶交错信号 模数转换 FPGA DPRAM 

分 类 号：TP302.1[自动化与计算机技术—计算机系统结构]