The independently developed 10,000-meter deep-sea high-precision temperature-salt-depth sensing instrument successfully tested the deep-sea ratio
China's independently developed high-precision temperature-salinity-depth sensing instrument (CTD) for 10,000-meter deep sea applications has completed deep-sea comparative measurement tests, with a maximum deployment depth of 7,180.4 meters.
记者从福建省级创新实验室嘉庚创新实验室获悉，日前， China's independently developed high-precision temperature-salinity-depth sensing instrument (CTD) for 10,000-meter deep sea applications has completed deep-sea comparative measurement tests, with a maximum deployment depth of 7,180.4 meters. 多项海试数据比较结果显示，其性能比肩国际先进水平。
It is reported that the instrument was independently developed by Xue Chenyang, a researcher at the Jiageng Innovation Laboratory, a professor at North University of China, and a distinguished professor at Xiamen University over two years. During the "Exploration-1" scientific expedition of the Institute of Deep Sea of the Chinese Academy of Sciences, the high-precision temperature, salinity and depth sensing instrument successfully completed 9 dives aboard the "Struggle" 10,000-meter manned submersible, covering the waters near the Java Gully in India. The depth of the sea is more than 3,000 - 7,000 meters.
The temperature-salinity-depth sensor instrument is used to measure changes in three basic quantities of seawater temperature, salinity and depth. Based on this, the sound speed and density of seawater can be calculated. It is a key basic instrument for ocean surveys. According to incomplete statistics, as of 2019, foreign brands accounted for more than 90% of various high-precision temperature, salt and depth sensing instruments and integrated instruments used in China.
The research and development of this instrument was supported by the Jiageng Innovation Laboratory project and was jointly researched by teams from Xiamen University and North University of China. Thanks to the great progress in China's micro-nano processing technology, the team has adopted the latest process methods and production conditions in recent years to ensure self-development from sensitive device design and preparation processes to packaging and testing technology, achieving 100% manufacturing of core components in China.
