Method for measuring concentration of solid-phase medium in solid-liquid two-phase fluid

The invention relates to a method for measuring the concentration of a solid-phase medium in a solid-liquid two-phase fluid. The method comprises the following steps: generating a magnetic field by using an electromagnetic induction method, cutting a magnetic induction line by the measured solid-liquid two-phase fluid to generate induced electromotive force, and indirectly measuring the concentration of the solid-phase medium in the solid-liquid two-phase fluid by measuring the induced electromotive force. Automatic real-time testing can be achieved, and the concentration of a solid-phase medium and the real-time change of the concentration in the dynamic flowing process of the solid-phase medium and the liquid-phase medium can be monitored in real time. An air compressor is used for forming bubbles to drive the solid-phase medium and the liquid-phase medium in the solid-liquid two phases to be rapidly mixed, the water-based magnetic fluid with the magnetic particles as ferrite is adopted, the dependence on t