Tech China Weekly: remote-sensing satellites; maglev train; unmanned ship; LCD screen; train motor
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E-mail Xinhua, September 22, 2019
BEIJING, Sept. 22 (Xinhua) -- The following are the highlights of China's key technology news from the past week:
REMOTE-SENSING SATELLITES
Five new remote-sensing satellites were sent into planned orbits from the Jiuquan Satellite Launch Center in northwest China's Gobi Desert Thursday.
The satellites belong to a commercial remote-sensing satellite constellation project "Zhuhai-1," which will comprise 34 satellites, including video, hyperspectral, and high-resolution optical satellites.
MAGLEV TRAIN
CRRC Zhuzhou Locomotive Co. Ltd. unveiled the key components of its magnetic-levitation train with a designed speed of 600 kph in central China's Hunan Province.
Key parts of the train's power system, including a long stator linear motor and two transformers, were unveiled in the city of Zhuzhou.
The long stator linear motor plays the role of the "heart" of the high-speed train, and the transformers provide a constant and stable direct current power for the linear motor, equivalent to a "blood supply system."
UNMANNED SHIP
China has built the first test base for unmanned ships, which will be operational at the end of this year, according to the Science and Technology Daily Monday.
The test base named Xiangshan Marine Scientific & Technological Port is located in Zhuhai, Guangdong Province. It will create an innovation platform for the design, research and testing of unmanned marine systems and intelligent equipment.
LCD SCREEN PRODUCTION
China's first self-developed 8.5 generation TFT-LCD panel, or thin-film transistor liquid crystal display panel, rolled off the production line Wednesday in Bengbu, east China's Anhui Province, paving the way for mass production.
An 8.5 generation TFT-LCD panel, with a length of 2.5 meters and width of 2.2 meters, can produce six screens of 55 inches, according to its manufacturer, the Bengbu Glass Industry Design and Research Institute of the China National Building Material Group Co. Ltd.
TRAIN MOTOR
China has developed a permanent magnet traction motor for trains with speeds up to 400 kph. The newly-developed TQ-800 motor is expected to be used in a multinational interconnected high-speed train project.
The successful development of the motor breaks the monopoly of foreign technologies in this area and lays a solid foundation for the upgrade of rail transit technologies in China. Enditem
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