CAPACITIVE SENSOR OF PRESSURE AND A MODE OF ITERATIVE OPTIMIZATION OF THE DIMENSIONS OF A PRESSURE SENSOR Russian patent published in 2007 - IPC G01L9/00 

FIELD: the invention refers to measuring technique.

SUBSTANCE: the pressure sensor has a cylindrical foundation and a measuring membrane fixed on one end-face surface of the foundation. The pressure capsule is pressed between the elastic lamping ring adjoining to the end-face side of the pressure capsule from the side of the membrane and the supporting ring supporting the pressure capsule from the rear side. The dimensions of the supporting ring are coordinated with the dimensions of the supporting ring and the pressure capsule in such a way that the radial deformation of the end-face surface from the side of the membrane specified with axle gripping of the pressure capsule is so small that an error of tension of the pressure sensor owing to decreasing of axle gripping effort at least on 10% makes no more then approximately 0,02%. Between the supporting and the gripping rings there is a rigid untying element minimizing temperature hysteresis of tension. The geometric form of the supporting ring and the untying element are defined iteratively by the method of end elements.

EFFECT: defines the geometrical form of the supporting ring and the untying element.

15 cl, 3 dwg