DIFFERENTIAL PRESSURE SENSOR AND DIFFERENTIAL PRESSURE MEASUREMENT TRANSDUCER HAVING SUCH A DIFFERENTIAL PRESSURE SENSOR

摘要

A differential pressure sensor (200) comprises two differential pressure measurement cells (100a, 100b) which each have a measurement membrane between two support bodies, wherein the measurement membranes each separate two measurement chambers from one another; and a measurement cell housing (210) having a housing body (212, 214) with two measurement cell chambers (216a, 216b) between which there extends a coupling duct (222), wherein one differential pressure measurement cell (100a, 100b) is arranged in each of the two measurement cell chambers (216a, 216b) and is connected to the housing body (212, 214) by a join, wherein the measurement chambers of the two differential pressure measurement cells which face the join are hydraulically coupled to one another via the coupling duct (222), wherein the housing body has two pressure ports (218a, 218b) which each extend from an outer surface of the housing body into one of the measurement cell chambers (216a, 216b), wherein the surfaces of the differential pressure measurement cells (100a, 100b) which are outside the join communicate with a pressure port, and wherein each of the differential pressure measurement cell measurement chambers facing away from the joins communicates with the media pressure openings via a pressure duct. (Fig. 2)