Open Channel Flow Meters: Electromagnetic

Electromagnetic Sensor

The velocity electromagnetic sensor uses Faradays law where an electro-conductive liquid crossing the lines of a magnetic force, generated by a magnetic field, produces an electromotive force (voltage). This voltage is captured by the electrodes and its linearly proportional to the liquids velocity.

“Pipe-like” Electromagnetic Sensor

The sensor is composed by a non-magnetic tube with a non-conductive coating, measuring electrodes and electromagnetic field generating bobbins, in a structure resembling a pipe.
The sensor makes use of Faradays law where an electro-conductive liquid crossing the lines of a magnetic force, generated by a magnetic field, produces an electromotive force (voltage).
This voltage is captured by the electrodes and its linearly proportional to the liquids velocity.