Study of a long duration flight balloon using a super-pressure balloon and a zero-pressure balloon

为了实现长时间飞行的超压气球和零压气球串联气球系统，研制了一种轻质、耐高压的超压气球，其表面覆盖一层菱形网，提出了一种新的串联双气球发射方法，并通过两次飞行试验测量了该系统在飞行环境中的性能。

To make a tandem balloon system using a super-pressure(SP) balloon and a zero-pressure(ZP) balloon which can enable the long duration flight, we developed a light and high pressure-resistant SP balloon with a thin plastic film covered by a diamond-shaped net, developed new launching procedure of two balloons in the tandem configuration, and measured the properties of the system in the flight environment through two test flights.