Importance

Loading Importance Indicators...

Abstract

A capacitive pressure transducer which is shielded so that water or another fluid with a relatively high dielectric constant can be measured more accurately, as the sensor is unaffected by the relative tendency of the fluid to influence the measured capacitance, including an electrode associated with a diaphragm on a first side opposite a second, wetted, side coupled to the fluid, the diaphragm electrode being of the same or larger size than a second electrode separated therefrom by a gap, and the diaphragm electrode extending radially outward to or beyond an annular seal on or adjacent the wetted side confining fluid to an area within the outer peripheral confines of the diaphragm and within an area comprising a portion of the wetted side of the diaphragm opposite the diaphragm's electrode.

Loading the Abstract Image...

First Claim