China's most advanced submersibles were gathered at the National Deep Sea Center on the sidelines of an international oceanic workshop from Monday to Tuesday in east China's coastal city of Qingdao.
Among the high-tech devices for deep-sea exploration were unmanned submersible Qianlong III, unmanned submersible Hailong III and deep-sea manned submersible Jiaolong.
The 1.5-ton Qianlong III is an orange fish-shaped autonomous underwater vehicle that is 3.5 meters long and 1.5 meters high. It was designed to conduct survey of the ocean floor's terrain and landform and take pictures underwater.
China's self-developed 4,500-meter-level unmanned submersible Qianlong III will conduct its first dive in the South China Sea on Friday. It is projected to reach a depth of 3,500 meters.
"It has a front sonar -- an imaging sonar which enables the submersible to identify obstacles ahead. After making the image, the computer can identify the obstacle and control the submersible to avoid the obstacle," said Liu Jian, chief engineer of the Qianlong family.
The Hailong III is a super-deep-water, heavy-duty remotely operated vehicle (ROV), according to Ge Tong, chief engineer of the Hailong family.
"It features some highest-level indicators. On the one hand, it is a 6,000-meter ROV. A submersible that can reach 6,000 meters or deeper is called super-deep-water submersible. On the other hand, its actual power can reach 170 horsepower, beyond the 150-horsepower line for heavy-duty machines. So it is a super-deep-water, heavy-duty ROV," explained Ge.
The deep-sea manned submersible Jiaolong was also among the devices at the National Deep Sea Center. It set a record by diving to a depth of 7,062 meters during tests in the Mariana Trench in June 2012.
The submersible will undergo a series of renovation and upgrading to improve its capability of deep-sea exploration, according to engineers at the center.
The oceanic workshop, running from Monday to Tuesday, attracted experts from countries including the United States, Australia, New Zealand, Russia, Japan and South Korea.
Sources:cctvplus
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