Flueric density and force sensor

摘要

Density of a sample or its concentration are sensed by a fluidic device having a nozzle with a divider for emitting the sample and a reference fluid as layers of a single laminar jet. The deflection of the jet in a fixed force field is sensed as an indicator of density or concentration. The same device can measure acceleration transverse to the nozzle axis or attitude in a fixed force field as a function of sensed jet deflection. The sensitivity of the acceleration and attitude sensor is a function of the density of the two selected fluids used in the layered laminar jet.