Study Of Digital Spectrometer Based On CCD

Spectrometer is one of the most important optical instruments. It is the basic device to measure, analyze and process the material structure and its component. With the development of computer and electron technology, spectrometer has entered a new development stage. Especially the using of Charge Coupled Devices (CCD) as receiver, spectrometer can quickly sample, store, transmit and process the spectrum information.This project is composed of the following parts:First, analyze the component of the instrument, compare with the different element of every component. According to this comparison, we set up a digital spectrum analysis system based on CCD.Second, Microsoft Visual Studio developing environment and C++ object-oriented programming language is used to develop the spectrum analysis software, which realizes the function of collecting, analyzing, displaying, and storage of spectral signal. Spectrum Analysis Library is designed, which greatly simplifies the procedure of software development and increases software portability.Third, The optical system, CCD, data acquisition board and spectrum analysis software has been integrated. Spectrum instrument is calibrated by standard mercury lamp. The software has been validated by 660nm red light.This system raises levels of reliability and automation of spectrum instrument, makes the operation easer. Technicians can concentrate on the analysis of the result.