| Data Acquisition System is a system that works as following steps: get the analog signals from sensor, and translate into digital signals, then send the digital signals into the computer for processing, at last export the resulte as the requiring format.As the developing of the Computer Technic and Electronic Information Technic, the Data Acquisition System conbined with advanced Electronic Technic could deal with vast process data. Nowadays, the Data-Acquiring Technology is used in many fields such as Analytical Instrument, Geology Reconnoiter, Medical Treatment Instrument, Radar, and Communication etc.It is developed very quickly that using Data Acquisition System in Analysis Equipment. Especially, when the chemical process data is fluctuant and the signals voltage is faint, it could be much more accurate in Data-Acquiring and Processing than X-Y Register.The dissertation main introduce the essence theory of the Data-Acquring and the Data Acquisition System controlled by AvrMega16 used in the Analytical Chemistry. The main research is as follows:Chapter 1: IntroductionIntroduce the relationship between Data Acquisition System and Measurement, Development of Data Acquisition System, Mission and Requirement of Data Acquisition System, and Theory of Data-Acquiring. At last set forth the aim and significance of this dissertation.Chapter 2: System Analysis and the whole DesignIntroduce the application environment of the system and the whole design of the system. Particular discuss the truss of the Data Acquisition System and the main composing module of the system.Introducing the superiority in the design of the system.Chapter 3: Hardware Design and RealizationDetailed researching and designing the all parts of the hardware, which including: the... |
