How the liquid bubble effects electromagnetic flow sensor
Bubbly gas formed body has dissolved gases (air) from the outside into the suction and liquid bubbles free form in two ways. If the liquid contained larger bubbles, can cover the entire electrode when the electrode due grazed, the flow rate of the signal input circuit instantaneous open electromagnetic flow sensor, resulting in an output signal appears shaking. Identification method is simple when it comes to rock, cut off the loop current magnetic field. If the electromagnetic flow sensor is still a show and unstable, indicating mostly due to the impact of bubbles. If at this time in order to measure electrode resistance multimeter, measure the resistance of the electrode into the circuit than the normal high, but the tests need to rely on professionals to test the long-term accumulation of experience and data.
