DESIGN OF MEASURING PRESSURE CONVERTER WITH CAPACITANCE SENSOR Russian patent published in 2014 - IPC G01L9/12 

FIELD: measurement equipment.

SUBSTANCE: invention relates to measurement equipment, in particular, to pressure sensors, and may be used in measurement of liquids and gases pressure difference. The measuring pressure converter with the capacitance sensor comprises the following components joined to each other: a body of a sensitive element that has a central chamber divided by an electroconductive membrane into two cavities. The cavity of the electroconductive membrane is connected by two pouring capillaries parallel to each other and the sensitive element and is equipped with current-conducting leads. Two separating assemblies with separating corrugated membranes arranged in parallel to each other have cavities under membranes that communicate to the cavity of the electroconductive membrane. The concave working surface of the cavity is made as fully metallised from outside. The electroconductive membrane of the sensitive element is located perpendicularly in respect to separating corrugated membranes. The pouring capillaries of the cavity of the electric sensitive membrane are turned in opposite directions and are connected to its cavity by a horizontal channel. The separating corrugated membranes are arranged each in its body at the opposite sides of the sensitive element body. Cavities under the membranes of the separating corrugated membranes are connected with the separate pouring capillaries that supply a separating fluid.

EFFECT: simplifying design and increase the accuracy of measurements.

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