The Study On Portable System For Toxic Gas Measuring On Military Affairs

In this article, a portable system for toxic gas measuring on the military affairs has been introduced. Basic principles of this measure instrument, especially the color identifying technology surrounding a kind of colorful linear CCD are comprehensively discussed. Some relevant questions such as basic principles of the linear CCD, the optical measuring system and the power supplying are discussed in detail. The analytic software of this system, which has been developed by Visual C++, can grab frames on real time. After measured the models for the toxic gas identifying practically for many times, we got some satisfying data, which made clear that the instrument could meet user's demand.The main tasks of this thesis are listed as follows:Proposing the blue print of the toxic gas measuring system based on colorful linear CCD.Contriving the TCD2252D driver, A/D and data-memorize card. In the circuit, programmable logic devices are used to produce key signal, which can make us debug the circuit easily. Developing the hardware system and software system based on PC, which are used to acquire the colorful curves.Fixing and debugging the instrument, making experiments and analyzing errors.