About sensors
A helium-filled balloon made of polyester fiber material was used to drive the balloon-carried platform. The balloon is about 75 m3capacity. The maximal balloon load for 5 m/s horizontal wind is 25 kg. The base of the balloon-carried platform is made of light-weight aluminum alloy and fixed by aramid fiber rope at a distance of 15 m from the balloon. There was used an electric winch for the balloon altitude set. The winch is equipped with 500 m light-weight aramid fiber rope. The balloon-carried platform was connected to winch and balloon aramid fiber ropes through polytetrafluoroethylene insulators to prevent electrical charging. The balloon-carried platform was equipped with two electrostatic field-mills, the polar air electrical conductivity sensor, radon monitor, aerosol particle counter, meteorological unit, barometric altimeter, GPS receiver, and autonomous controlling system.
Balloon in the sky
Measurement platform and lifting winch