| 摘要 |
The invention relates to a differential pressure sensor (1) comprising a differential pressure measuring cell (2) with a measuring membrane (10), two counter elements (20, 30), between which the measuring membrane is arranged, and a converter (40) and comprising an elastic clamping device (50) that has two clamping surfaces (53), each of which acts on a counter element (20, 30) rear face (26, 36) facing away from the measuring membrane (10). The clamping device (50) has at least one elastic element (56, 58) via which the clamping surfaces (52, 54) are mechanically coupled in order to clamp the differential pressure measuring cell (2) by means of an axial clamping force. The clamping surfaces (52, 54) are dimensionally stable, and the clamping device (50) has a bracket with two clamping elements (60, 62), each of which has one of the clamping surfaces (52, 54). At least one of the clamping elements has an elastic element, and the clamping elements are connected to each other under tension in order to exert a clamping force onto the differential pressure measuring cell (2). The two clamping elements (60, 62) have a central dimensionally stable section (64, 66) which comprises the clamping surfaces (52, 54). Elastic sections adjoin the dimensionally stable section (64, 66) of at least one clamping element, in particular of both clamping elements, said elastic sections forming the elastic elements (56, 58). |
