▎ 摘　　要

NOVELTY - The pressure measuring cell (1) has a pressure transmitter (3) and a pressure sensor (2) that is connected to the pressure transmitter. The pressure sensor has a membrane (4) for recording a pressure. An interior space (6) adjoins the membrane that is formed inside the pressure sensor. A pressure transmitter medium (9) is located within the interior. The pressure measuring cell has a gas-tight coating (12) which cover the entire surface of the membrane. The coating has a sealing layer formed by graphene oxide. The membrane consists of a metal. USE - Pressure measuring cell used in pressure measuring device. ADVANTAGE - The pressure measuring cell maintains the measuring accuracy. The material consumption of the coating is extremely low and gases are prevented from penetrating through the membrane into the interior space. The damage to the gas-tight coating by external mechanical influences is avoided. DESCRIPTION OF DRAWING(S) - The drawings show the sectional view of the pressure measuring cell. Pressure measuring cell (1) Pressure sensor (2) Pressure transmitter (3) Membrane (4) Interior space (6) Pressure transmitter medium (9) Gas-tight coating (12)