Electronic System Design Of Deep-sea Microbial Biomass Auto-detecting Instrument

Deep-sea microbial biomass study is important to the deep-sea microbial biodiversity study, the eco-environmental monitoring and the global biochemical cycle research. The progress of deep-sea detecting instrument is a prerequisite for the development of microbiological research, therefore, the development of a new deep-sea microbial biomass detecting instrument, which has factor-retaining, real-time and continuous detecting features, is urgent.Based on discussions about current development of microbial biomass analysis measurements and the current testing instruments study, a new method is advanced in this dissertation. A microbial biomass detector based on ATP bioluminescence detect method is designed. The instrument used the biology, light-emitting chemical, mechanical, electronic and computer technologies and achieved an automatic biochemical reaction detection of deep-sea microbial biomass. This dissertation focuses on the instrument's electronic detection system, which combined subdivided driving technology of step motor, solenoid valve driving theory and the fluorescence detecting means. A suit of biochemical reactions automatic controlling and fluorescence detecting circuit based on the C8051F040 is designed, which achieved the instrument's automated testing process, and significantly increased microbial biomass detecting efficiency and detecting accuracy.The dissertation includes six chapters:Chapter 1 elaborates the background and signification of the study. The current developments in correlative field are introduced in this dissertation, too. This chapter details the strengths and weaknesses of current methods, develops a new instrument designation based on ATP bioluminescence.Chapter 2 describes the principle of the deep-sea microbial biomass test instrument and the whole scheme device design. On this basis, the chapter discusses different design and different device selection in detail. Chapter 3,4 focuses primarily on hardware design of electronic systems and software programs.Chapter 5 introduces the experimental data and test results.Chapter 6 is a summary and a prospect of the entire dissertation.