Electromagnetic type vortex street flow sensor

The utility model relates to an electromagnetic type vortex street flow sensor, including collection system, signal processor, control system, collection system passes through the signal processor connection control system, above -mentioned collection system includes the casing, the magnet sheath, permanent magnet, the body takes place for the swirl, electrode bar and wire, the inside wind channel that is provided with of casing, a signal processo, and a control syste, the opposite side opening is the air outlet, radially install a swirl and take place the body in being close to the casing wind channel of air intake, the body takes place and is triangular prism shape for this swirl, outside radial symmetry installs a pair of magnet sheath at the casing that is close to the air outlet, the one end of every magnet sheath all with casing wind channel intercommunication, permanent magnet is installed to the other end of every magnet sheath, lean on a last permanent magnet middle part cartridge electrode bar, the