Provided is a diving instrument
buoyancy control and pressure compensation
system and method, the
system includes a shell body, the inside of the shell body is filled with gases with a certain compressive stress, the shell body is provided with two and above elastic gasbags, the insides of the elastic gasbags are filled with gases with a certain compressive stress, and through a protective shell with holes wrapping on the outsides of the elastic gasbags, are in contact with the inside and outside of the shell body, the stresses of the filled gases inside every elastic gasbag are all different, and the gas stress inside the shell body is lower than the gas stress inside the elastic gasbag; the inside of the shell body is provided with an elastic water bag, a two-way
seawater hydraulic pressure pump and a
seawater electric
magnetic valve, and the elastic water bag through the above two-way
seawater hydraulic pressure pump and the seawater electric
magnetic valve is through connected with a
water environment outside the shell body in order to conduct water transmission among each other; the inside of the shell body is also provided with a motor connected with the two-way seawater
hydraulic pressure pump, the motor controls the
control system of the motor and the seawater electric
magnetic valve in operations and the
electric power supply for supplying
electricity to every installation inside the shell body. The disclosed diving device
buoyancy control and pressure compensation
system, wherein the
buoyancy control is converted from a closed form oil hydraulic pressure to an
open form sea water hydraulic pressure, expands the scope of the buoyancy control, and increases the reliability and compatibility with environment.