CAPACITIVE PRESSURE GAGE Russian patent published in 2007 - IPC G01L9/00 

FIELD: measuring technique.

SUBSTANCE: pressure gage comprises main cylindrical housing and measuring diaphragm mounted on the face of the main housing. The measurement pressure cell is squeezed in the axial direction between the flexible sealing ring which abuts against the face of the cell from the side of diaphragm and bearing ring that is a bearing for the back face of the cell. The sizes of the bearing ring correspond to the sizes of the sealing ring and cell so that the radial deformation of the face from the side of the diaphragm caused by axial clamp of the measurement pressure cell is so small that the gage error due to the squeezing does not exceed 0.02% when the radial squeezing force is reduced at least by 10%.

EFFECT: enhanced precision.

12 cl, 3 dwg