Expendable Conductivity Temperature and
Depth (XCTD) is an advanced marine dynamic environmental element measuring
instrument, which can be used on various civil and military vessels, aircraft
or submarines to quickly obtain underwater environmental information data. It
is a standing instrument for marine survey and an important supplement to
traditional measuring instruments such as marine environmental monitoring buoy,
submarine buoy and shipborne CTD because of its flexibility, economy and
simplicity. At present, the Expendable Conductivity
Temperature and Depth is widely used in the field of ocean profile
observation because of its characteristics of simple measurement, high
measurement efficiency and low hardware cost. In order to understand the
development gap at home and abroad and clarify the future development direction
of this field, this paper expounds the development status of the expendable
marine exploration instruments at home and abroad through comparative analysis
and summary starting from its classification, at the same time, compares the
main gap between domestic and foreign products, and focuses on the working
principle and key technology of the Submarine-launched Expendable Conductivity
Temperature and Depth (SSXCTD), meanwhile, the research summarized the future
research directions in this field.
