| 主权项 |
1. Capacitive pressure measuring cell (1) for detecting the pressure of a medium adjacent to the pressure measuring cell (1), comprising a ceramic elastic measuring membrane (2) the first side of which at least partially is in contact with the medium and the second side of which facing away from the medium comprises a measuring electrode (10); and a ceramic cylindrical basic body (3) disposed opposite to the second side of the measuring membrane (2) and comprising at least one counter-electrode (11, 12) which forms a measuring capacitance with the measuring electrode (10), wherein the electrical contact of the measuring and the counter electrode (10, 11, 12) is achieved by through holes (20) provided in the base body (3), wherein the inner walls of the through holes respectively comprise a conductive coating, characterized in that the end portions (21a) of the through holes (20) at the upper side (3a) of the base body (3) each have a funnel-shaped enlargement, wherein the exit edge of each funnel-shaped enlargement is formed in the shape of an ellipse, such that the notch effect is smaller than with a circular shape. |
