基于电荷耦合器件的数字光谱分析仪的研究

光谱仪器是光学仪器中一种重要的组成类型。主要研究和搭建了基于电荷耦合器件(CCD)的数字光谱分析仪，将光学系统、CCD、数据采集卡和光谱分析软件组成完整的数字光谱分析系统，实现了系统的数字化、自动化、小型化和便携化。设计了光谱分析软件以实现光谱信号的采集、显示、处理、寻峰、标定和存取，开发了光谱分析类库（SAL），提高了软件的可移植性，简化了后继软件开发。使用标准汞灯对数字光谱分析仪进行了标定，并使用激光笔发出的红光对软件的正确性进行了验证。该系统主要适用于现场远距离军用目标的实时探测，同时也可兼顾民用。实验结果表明，该数字光谱分析仪有较好的准确性及可重复性。

Study of Digital Spectrometer Based on Change Coupled Device

Spectrometer is one of the most important optical instruments. A digital spectrum analysis system based on change coupled device (CCD) is set up. The optical system, CCD, data acquisition board and spectrum analysis software are integrated to implement the digitization, automation, miniaturization and portability of the system. Spectrum analysis software is developed to realize the function of collecting, analyzing, displaying, peak-seeking, calibration and storage of spectral signal. Spectrum analysis library (SAL) is designed, which greatly simplifies the procedure of software development and increases software protability. The digital spectrometer is calibrated by standard mercury lamp and the software is verified by the laser test. The system is mainly used for remote-site real-time detection of military targets, at the same time, it can be considered for civil use. The experimental results show that the digital spectrum analyzer has a good accuracy and repeatability.