A novel design of fast response Mn–Ni–Cu–Fe–O microbead thermistors for radiosonde

Radiosondes play a vital role in meteorological detection by serving as essential hardware support for collecting critical climatic data. Temperature sensor is of particular importance in radiosondes. To enhance the response speed of the temperature sensors, a microbead thermistor, encapsulated with insulation layer and reflective layer, has been fabricated in this paper. The resulting microbead thermistors exhibit resistance values ranging from 60 k Omega to 0.5 k Omega across temperatures spanning from -80 degrees C to 60 degrees C. Notably, the response time of this thermistor is 0.45 s in still air, which is shorter compared to similar products. Consequently, this microbead thermistor with fast response time can be used in temperature measurement of meteorological detection.