Abstract: A large-flux in-situ filtration device for marine microorganism based on a multi-channel circulation distributor is provided, comprising an energy and control module, a circulation distribution module, a filtration module, a pump module, a filtration volume measurement module, a pipeline connection, and a main body support frame. The circulation distribution module may include a multi-channel circulation distributor, a deep-sea servo motor, etc. The filtration module may include a plurality of filter film holders. The pump module may include a stainless steel gear pump, a deep-sea drive motor, etc. The filtration volume measurement module may include a water meter, a camera, and an LED light.

Abstract: The method for the measurement of turbulence by using reciprocating ocean microstructure profiler includes the following procedures: 1) system startup; 2) detection of the profile data of ocean dynamic environment information: a. temperature detection; b. shear detection; c. depth detection; and d. current and temperature & conductivity detection; e. gesture sensing; 3) control of ascending and descending operations of the profiler: a. uprising control; b. redirection operation; and c. sinking control; and 4) sleep mode. The method doesn't consume labor several times and the equipment is capable of providing long-time continuous profile measurement at a fixed area along a steel cable; and the entire system can ascend and descend steadily after hydrodynamic optimized layout, eliminating the measurement errors contributable to water flow fluctuation during detection, thus obtaining accurate ocean microstructure observation in vertical with higher precision.

Abstract: A reciprocating ocean microstructure profiler includes a first profiler subunit, a second profiler subunit and a central stand. The first profiler subunit is provided with the first buoyancy drive part and the first observation part; and the second profiler subunit is provided with the second buoyancy drive part and the second observation part. Both the first and second buoyancy drive parts are installed with a floating compartment, a drive compartment and a pressure housing each. A top oil bladder is provided in the floating compartment and a bottom oil bladder in the pressure housing. A drive pump assembly and a solenoid valve are installed in the drive compartment. The first and second observation parts are electrically connected to a controller each and each controller is electrically connected to a drive pump assembly and a solenoid valve.

Abstract: An along-the-cable reciprocating motion control mechanism includes a moving platform, weight drop-off gear, weight release gear and trigger gear. The moving platform is set at a guide cable and can make reciprocating motion along the guide cable. A profiler is carried by the moving platform and the buoyancy of the moving platform carrying the profiler is greater than zero, the weight drop-off gear is set at the top of the guide cable and can drop a weight onto the moving platform within a predefined period, the weight release gear is provided on the moving platform, the trigger gear is set at the bottom of the guide cable, and when the moving platform carries a weight and descends to the bottom of the guide cable, the trigger gear touches the weight release gear to enable it to make a series of actions.

Abstract: A method includes: a guide cable and an observation platform is provided, a profiler is mounted, and a trigger gear is set at the bottom of the guide cable; a weight drop-off gear is set at the top of the guide cable, when the observation platform is located at the top of the guide cable, one weight is released by the weight drop-off gear onto the observation platform so that the observation platform descends along the guide cable owing to additional gravity, and when the observation platform descends to the given position of the trigger gear at the bottom of the guide cable, the release gear releases the weight on the observation platform so that the observation platform returns by its own buoyancy to the top along the guide cable; another weight is subsequently released by the weight drop-off gear so that the observation platform repeats the foregoing reciprocating motion.

Abstract: An along-the-cable reciprocating motion control mechanism includes a moving platform, weight drop-off gear, weight release gear and trigger gear. The moving platform is set at a guide cable and can make reciprocating motion along the guide cable. A profiler is carried by the moving platform and the buoyancy of the moving platform carrying the profiler is greater than zero, the weight drop-off gear is set at the top of the guide cable and can drop a weight onto the moving platform within a predefined period, the weight release gear is provided on the moving platform, the trigger gear is set at the bottom of the guide cable, and when the moving platform carries a weight and descends to the bottom of the guide cable, the trigger gear touches the weight release gear to enable it to make a series of actions.

Abstract: A method includes: a guide cable and an observation platform is provided, a profiler is mounted, and a trigger gear is set at the bottom of the guide cable; a weight drop-off gear is set at the top of the guide cable, when the observation platform is located at the top of the guide cable, one weight is released by the weight drop-off gear onto the observation platform so that the observation platform descends along the guide cable owing to additional gravity, and when the observation platform descends to the given position of the trigger gear at the bottom of the guide cable, the release gear releases the weight on the observation platform so that the observation platform returns by its own buoyancy to the top along the guide cable; another weight is subsequently released by the weight drop-off gear so that the observation platform repeats the foregoing reciprocating motion.

Abstract: A reciprocating ocean microstructure profiler includes a first profiler subunit, a second profiler subunit and a central stand. The first profiler subunit is provided with the first buoyancy drive part and the first observation part; and the second profiler subunit is provided with the second buoyancy drive part and the second observation part. Both the first and second buoyancy drive parts are installed with a floating compartment, a drive compartment and a pressure housing each. A top oil bladder is provided in the floating compartment and a bottom oil bladder in the pressure housing. A drive pump assembly and a solenoid valve are installed in the drive compartment. The first and second observation parts are electrically connected to a controller each and each controller is electrically connected to a drive pump assembly and a solenoid valve.

Abstract: The method for the measurement of turbulence by using reciprocating ocean microstructure profiler includes the following procedures: 1) system startup; 2) detection of the profile data of ocean dynamic environment information: a. temperature detection; b. shear detection; c. depth detection; and d. current and temperature & conductivity detection; e. gesture sensing; 3) control of ascending and descending operations of the profiler: a. uprising control; b. redirection operation; and c. sinking control; and 4) sleep mode. The method doesn't consume labor several times and the equipment is capable of providing long-time continuous profile measurement at a fixed area along a steel cable; and the entire system can ascend and descend steadily after hydrodynamic optimized layout, eliminating the measurement errors contributable to water flow fluctuation during detection, thus obtaining accurate ocean microstructure observation in vertical with higher precision.