Instruments help deep-sea scientific research '20,000 miles under the sea' is just around the corner
by:GESTER Instruments
2021-07-06
my country's 'Explore One' scientific research ship carried out the first comprehensive scientific research activity of the 10,000-meter abyss in the history of my country's marine science and technology development in the Mariana waters. Among them, my country's self-developed 'Haidou' unmanned submersible has a maximum diving depth of 10767 meters, setting a record for the maximum diving and operating depth of my country's unmanned submersibles. On August 23, the Chinese Academy of Sciences held the 'Press Conference on Major Achievements of the Abyssal Scientific Examination' and released a series of important results achieved by the first flight. 'This is the first 10,000-meter deep-sea scientific expedition in the history of my country’s marine science and technology. It has performed 84 equipment tests and scientific expeditions, among which 3 types of 10,000-meter deep-sea equipment independently developed by my country have exceeded 10,000-meter depths five times, and the equipment is stable. The performance has been verified, and a large number of precious samples and data have been obtained, marking that my country's deep-sea scientific research has entered the 10,000-meter era.' said Bai Chunli, president of the Chinese Academy of Sciences. Many deep dives have exceeded 10,000 meters, and my country can also develop 10,000-meter-level unmanned submersibles. According to statistics, this voyage has 5 types of equipment that have dived more than 7,000 meters, type 3 equipment 4 times more than 8,000 meters, and type 3 equipment 4 times. Over 9,000 meters, Type 3 equipment broke 10,000 meters five times. Among them, the 'Haidou' unmanned submersible independently developed by my country has successfully carried out one 8,000-meter, two 9,000-meter and two 10,000-meter dive applications, with a maximum diving depth of 10767 meters and hovering 52 Minutes, it has created the record of the largest diving and operating depth of my country's unmanned submersibles. This also makes my country the third country with the ability to develop 10,000-meter-level unmanned submersibles after Japan and the United States. 'Haidou' 10,000-meter autonomous remote-controlled submersible, also known as 'full-sea deep underwater robot.' It uses an upright and flat body, comes with its own energy source, and is equipped with a full-sea depth CTD (Temperature Salt Depth) sensor and underwater camera. The maximum working depth is 11,000 meters, and the weight in the air is 260 kg. Liu Xincheng, the voyage leader of the Institute of Deep Sea Science and Engineering of the Chinese Academy of Sciences, said: 'In addition to setting a record for the maximum dive depth, the'Haidou' also obtained the first time for my country the temperature and salt depth data of the abyss below 10,000 meters and the depth of the whole sea. In addition to the 'HaidouThe 'Haijiao' and 'Tianya' abyss landers, and the 'in-situ experiment' abyss lifter conducted a total of 17 deep dives, of which the 'Tianya' and 'in-situ experiment' exceeded the depth of 10,000 meters on three occasions , Staying on the seabed for more than 12 hours. 'Tianya' is mainly oriented to the comprehensive application needs of Haidou Abyssal Science. In this voyage, the 'Tianya' abyss lander dived 9 times, of which 8 were successful, obtaining a large number of near-bottom water samples, videos, photos and some sediment samples, and successfully capturing a batch of abyssal characteristic creature lionfish and other large creatures. . The 'Haijiao' lander is a comprehensive deep-sea exploration equipment that integrates hydrological measurement, optical observation, acoustic detection, and biological sampling. During this voyage, all three dive operations of the 'Cape' Abyssal Lander were successful. Catch lionfish and large amphipod prawns at depths close to 7000 meters. The 'in-situ experiment' abyss lifter is deployed through an anchor system and is mainly used for in-situ cultivation of seabed microorganisms and chemical experiments. The system is equipped with 12 cultivation units, which can simultaneously meet the requirements of a variety of biogeochemical in-situ cultivation experiments . During this voyage, the 'in-situ experiment' lifter was used in 6 dives, all of which were successful. Testing deep-sea equipment in the 10,000-meter abyss is one of the most important purposes of the scientific expedition. Testing the deep-sea equipment independently developed by my country is one of the most important purposes of this scientific expedition. 'The seabed of ten thousand meters is an extreme natural environment, and the conditions such as pressure and temperature are very harsh. Our self-developed instruments and equipment have not only withstood the test of ten thousand meters, compared with the international horizontal, but also carried out some pioneering work and achieved breakthroughs. Sexual results.' Liu Xincheng said. He introduced that at a depth of 10,000 meters, my country’s self-developed 'in-situ experiment' abyss lifter equipped with experimental equipment successfully carried out the in-situ cultivation experiment of the nitrogen cycle at the bottom of the abyss on the seabed, and the 'Tianya' abyss lander obtained a large amount of Submarine water sample (>100 liters), which has no precedent in the international equivalent or similar equipment. The 'performance' of the domestic submarine seismograph is also surprising. It has a maximum working depth of 7731 meters, setting a new record for the working depth of a domestic seismograph, and for the first time in the world, it carried out active source artificial seismic exploration in the western part of the 'Challenger's Depth' and successfully obtained a complete seismic profile. Liu Xincheng said: 'We are also very fortunate to obtain data on a natural earthquake of magnitude 7.7 in the Mariana Trench. This is the third time since 1900 that scientists have recorded a natural earthquake signal of magnitude greater than 7.7 in the Mariana Trench. These data It will be provided to relevant scientists for in-depth research.” At the same time, “Explore One” used the ship-borne winch system and sediment sampling equipment to obtain box-type sediment samples with a water depth of 9,150 meters, creating a new depth of operation for the same type of deep-sea equipment. Record.
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You can find a large selection of quality at GESTER Instruments. Go get your desired one.
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