Underwater Glider (UG)

Underwater glider (UG) is an autonomous unmanned submersible that does not rely on external propulsion devices, but only relies on changing its net buoyancy and attitude to perform zigzag diving and surfacing. The "Haiyan II" underwater glider (UG) was independently developed by Tianjin University in China, specifically designed for deep-sea exploration and ocean observation. It adopts a lightweight ceramic composite pressure resistant shell and hybrid propulsion technology, and is equipped with acoustic sensors, optical sensors, and temperature salinity depth meters (CTD), which can achieve multi-element hydrological environment observation.

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

In 2005, Yang Shaoqiong, an associate professor at Tianjin University and a core member of the "Haiyan" research and development team, successfully developed the first generation of temperature difference energy driven underwater glider, which works at a depth of 100 meters and belongs to the principle verification model of the "Haiyan" series. In 2009, the second-generation hybrid propulsion test prototype "Haiyan" was successfully developed, with a working depth of 500 meters. This model officially adopted the name "Haiyan" and became an important symbol of series development. The exhibit the second-generation hybrid propulsion technology engineering finalization machine, Petrel-x001e_II, developed in 2014 with the support of the National 863 Program. It is mainly used in the fields of ocean observation and national defense. It completed a full dimensional upgrade based on the second-generation hybrid propulsion technology in 2009.