Magnetofluidic sensor for volume measurement

Abstract

Magnetofluidic sensors based on magnetic fluid dislocation in a vessel positioned inside a coil of an electric oscillating circuit has been presented. The sensors measure the volume of a nonmagnetic heavy body as a function of the resonance frequency. The sensors allow a higher accuracy and could be used for ratio f higher than 0.3 if the shape of the body allows it to be entirely contained in the coil.