TOOL FOR A GLASS-BENDING PROCESS

The invention relates to a tool (1) for holding at least one glass pane (1, 11) by means of a suction effect in a bending process, comprising a frame-like, convex contact surface (2) and a cover (3), which has a peripheral air-guiding plate (4) that surrounds the contact surface (2) at least in some regions, wherein the tool (1) is suitable for producing a first, reduced pressure (p1) in a first pressure region (B1) between the air-guiding plate (4) and the contact surface (2); producing a second pressure (p2) in a second pressure region (B2), which is arranged in a central region inside the contact surface (2), wherein the second pressure (p2) is greater than the first pressure (p1). The invention relates to a tool (1) for holding at least one glass pane (1, 11) by means of a suction effect in a bending process, comprising a frame-like, convex contact surface (2) and a cover (3), which has a peripheral air-guiding plate (4) that surrounds the contact surface (2) at least in some regions, wherein the tool (1) is suitable for producing a first, reduced pressure (p1) in a first pressure region (B1) between the air-guiding plate (4) and the contact surface (2); producing a second pressure (p2) in a second pressure region (B2), which is arranged in a central region inside the contact surface (2), wherein the second pressure (p2) is greater than the first pressure (p1). The invention relates to a highly accurate pressure sensor comprising: a first base body (1) having two electrically conductive layers (11, 13) and an insulation layer (15) arranged between the two layers (11, 13) and electrically insulating the two layers (11, 13) against one another; an electrically conductive measuring diaphragm (5) which is arranged on the first base body (1) including a pressure chamber (9), and which can be applied with a pressure (p, Δρ) to be measured; and an electrode (17) provided in the layer (11) facing the diaphragm and at a distance from the measuring diaphragm (5), forming a capacitor together with the measuring diaphragm (5), said capacitor having a capacity (C1) that changes according to the pressure acting on the measuring diaphragm (5). The pressure sensor is characterised in that: it has a measuring diaphragm connection (23, 23') via which a reference potential (U0) can be applied to the measuring diaphragm (5); it has an electrode connection (25) via which an electrode potential (E1) of the electrode (17) can be tapped; and a shield connection (27, 27') vi