Voice coil motor "Oasis of Life" at the bottom of the sea. Under the illumination of the lights, the sea is blue and the snow is flying. A series of pearl-like white bubbles constantly emerge from the bottom of the sea. Around the bubbles, there are numerous mussels, mussels, and mussels; translucent Alpen shrimp, white clam shrimp, a cluster of tube-like worms, and a piece of serpentine are all commonplace.

     This strange underwater world is the "Haima Cold Spring" in the Xisha area of the South China Sea. The cold spring system is a deep-sea natural phenomenon formed by the leakage of a methane-rich fluid to the seabed. The Haima cold spring is located in the Xisha area of the South China Sea. The overall distribution is east-west strips with a depth of 1350 to 1,430 meters. In 2015, the Guangzhou Ocean Geological Survey used its self-developed 4,500-meter “Hippocampus” unmanned submersible to discover its name.

    Although the cold springs of the hippocampus were known for a long time, it was very shocking to take a deep dive device and see the seabed with their own eyes. The cold spring has a large amount of biomass and a high degree of richness, and it really deserves reputation. The cold spring biological samples collected by the Haima Cold Spring System, such as worms, mussels, clams, and sea anemones, are very satisfying. We will further study taxonomy and community ecology.

      Near the bottom of the sea near the cold springs of the seahorse near the depth of 1400 meters, Li Shenzheng took a "deep sea warrior" submarine, and for the first time trapped a "deep sea urn" 15 cm long. Deep-sea marine arthropods are arthropods, crustacean subphylums, genus A., and Apodidae. They are typical deep-sea carnivorous species. They are "relatives" to land-based watermelon worms, but they are much larger in size. The acquisition of this biological sample is helpful for the study of deep-sea environmental biodiversity and ecosystems in the waters around the cold springs of the hippocampus.

     In Haima Cold Spring, the Deep Sea Warrior also collected samples of carbonate rocks, submarine sediments, microbes, and cold springs. Scientists investigated the relationship between cold spring activity and micro-geomorphology. Wang Pinxian believed that the in-depth study of the cold spring area of the hippocampal activity is an important part of the exploration of the deep-seated process of the South China Sea. It can reveal the deep-sea biogeochemical processes and contribute to a comprehensive understanding of the carbon cycle in the South China Sea; The hydrate exploration also has important guiding significance.

     The voice coil motor is a DC servo motor that converts electrical signals into linear displacement. It is based on the principle of Ampere force, that is, the energized coil exerts a force in a magnetic field, and the magnitude of the force is proportional to the current applied to the coil. The voice coil motor theoretically has a series of advantages such as infinite resolution, no hysteresis, high response, high acceleration, high speed, small volume, good force characteristics, and easy control, making it more suitable for high acceleration, high frequency excitation, Fast and high-precision positioning in the control system. Modern disk drives, optical disk drives, and some high-precision positioning system actuators use voice coil motors to drive them.

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