Design of a dropsonde system based on rocket apply to near space and experimental research

The near space holds significant importance for environmental protection, aerospace, and national defense. To address the challenges of detecting near space at altitudes above 60 km, this paper designs a rocket-based dropsonde system, innovatively employing high-dynamic temperature sensors and wide-range ultra-low pressure sensors to build an in-situ detection system for near space. To verify the feasibility of this system, a near-space detection experiment was conducted for altitudes above 60 km. The experimental results indicate that this system can successfully detect the near-space environment above 60 km. This experiment achieved the first domestic in-situ detection of near-space within the 20-70 km range, marking a pioneering effort in the detection of the near-space environment above 60 km in China.