Design of data acquisition system for solid-liquid dynamic sounding rocket

For solid-liquid dynamic sounding rocket under test and aero experiment,the real-time data acquisition and storage problem of thrust,fuel supply rate and blow-off system should be solved.A data acquisition system was thus designed and implemented to monitor,acquire and save output data of some relevant important facilities on the solid-liquid dynamic sounding rocket.Based on STM32F103RB microcontroller,data acquisition,storage and transmission circuits were designed.Moreover,under the Real View MDK integrated development environment,the programs of test and control were compiled by language C.Finally,the software and hardware were tested jointly by Real View ULINKR simulator.The joint debugging results verify that the system functions such as power supply control,sampling frequency and working condition storage can meet the design requirements,helping to complete supervisory,acquisition and storage missions for important facilities on the solid-liquid dynamic sounding rocket.The system can be applied to different categories of solid-liquid dynamic sounding rocket only through modification of testing control program.