Method and device for controlling combination of magnetofluid dispersions in medium

The invention provides a control method and device for compounding magnetofluid dispersions in a medium. The device comprises a transparent container, a magnetic fluid, a transparent medium, a shell, at least one working magnet and at least one composite control magnet. The transparent container is filled with magnetic fluid and a transparent medium. A cavity is formed in the shell. And the transparent container is embedded in the cavity. And the shell is provided with an observation window for observing the transparent container. The working magnet and the composite control magnet assembly are arranged in the cavity. The working magnet is an electromagnet. The magnetic field generated by the working magnet controls the magnetic fluid to move. The magnetic field generated by the composite control magnet attracts the gathered and detained magnetofluid dispersions. The dispersoid can be automatically compounded, the technical bottleneck that the magnetofluid dispersoid in a medium is difficult to compound is so