The Research On Field Multi-Channel Nuclear Data Collecting System Based On MCU

Measuring technology of Multi-Channel is the foundation of matter composition and radioactivity verifying by way of nuclear methods.The dissertation aims at developing tendency of measuring technology of Multi-Channel nuclear energy spectrum,combining the characteristics of field working, focusing on systematically reseach on some key techniques such as the design of Multi-Channel Analyzer(MCA) and apparatus,with a view to resolve defects exsisting in current portable apparatus. The dissertation discusses about field Multi-Channel nuclear data collecting system based on MCU in detail. The data collecting system adopts MCU(Micro-Control Units) AT89C55 as controlling core,applying high speed and low power ADCs(Analog-to-Digital Converters) CMOS chip MAX 191 and 320x240 matrix graphic LCD(Liquid Crystal Display). According to the requirements of disign,the system apply MCU AT89C2051 to extend 32 keybords,and meantime the system can use battery which can be recharged to supply power.As a whole,the system characteristic of inputting by keyboard and interacting by Chinese characters can display and store spectrum data automatically and accomplish data handling.What's more.the system can communicate with other computers by the interface of RS-232C. Software system is written by various programme languages C Language and Assemble Language. The software system make use of virtues of multi-language mixed programming technique fully,which make it can do well in either timely handling or handling data convenently.