Temperature-salinity-depth sensor embedded in and borne by underwater motion platform

The invention discloses a temperature-salinity-depth sensor embedded in and borne by an underwater motion platform. Sensing elements for sensing temperature, salinity and pressure are arranged outside the platform by a supporting plate packaged on a housing of the underwater motion platform, parts, such as a measurement and control circuit and the like, which do not need to be in contact with seawater are embedded into the platform, and compression faces of a temperature probe, a conductance cell and a pressure probe are arranged in a flow guide cover outside the underwater motion platform to reduce an exposed size and flow resistance of the temperature-salinity-depth sensor, so that the temperature-salinity-depth sensor is adapted to field temperature salinity observation of the underwater motion platform. According to the temperature-salinity-depth sensor, the sensor measurement and control circuit and the like are embedded into the platform after being further miniaturized and an independent watertight metal shell does not need to be adopted; the embedded temperature-salinity-depth sensor has a compact structure; the dead weight of the sensor can be greatly reduced; the problem of unreliable factors possibly brought by utilizing a watertight cable to connect outside the platform is solved. With the temperature-salinity-depth sensor, remote manoeuvrable capability of the underwater motion platform is improved and the comprehensive technical performance of the underwater motion platform is improved.