SOLID DIELECTRIC CAPACITANCE GAUGE FOR MEASURING FLUID PRESSURE HAVING TEMPERATURE COMPENSATION AND GUARD ELECTRODE

摘要

Pressure in a fluid is measured by measuring the dielectric constant of a solid dielectric disposed in the fluid. Two electrodes are each mounted on an opposing side of the dielectric and the capacitance therebetween monitored to provide a measure of the dielectric constant of the dielectric material and hence pressure in the fluid.