Unfortunately, if there is any stray electric current traveling through the liquid to produce
erroneous voltage drops between the electrodes, chances are it will be 60 Hz AC as well44. With
the coil energized by 60 Hz AC, any such noise voltage may be falsely interpreted as fluid flow
because the sensor electronics has no way to distinguish between 60 Hz noise in the fluid and a 60
Hz motional EMF caused by fluid flow