Abstract: A pressure sensor includes a platform and an elastic measuring membrane, which is joined with a surface of the platform to form a measuring chamber sealed closed at the edge, wherein the platform and/or the measuring membrane comprise ceramic, glass or a single crystal material, the measuring membrane has at least a first electrode, which faces the surface of the platform, the surface of the platform has at least a second electrode, which faces that of the measuring membrane. The capacitance between the first electrode and the second electrode is a measure for the pressure to be measured; wherein additionally at least one of the first and second electrodes comprises a conductive layer, which contains metal and glass, and wherein the metal comprises at least two noble metal elements.

Abstract: A pressure sensor includes a platform 1 and an elastic measuring membrane 2, which is joined with a surface of the platform 1 to form a measuring chamber 3 sealed closed at the edge, wherein the platform 1 and/or the measuring membrane 2 comprise ceramic, glass or a single crystal material, the measuring membrane has at least a first electrode 6, which faces the surface of the platform 2, the surface of the platform 1 has at least a second electrode 5, which faces that of the measuring membrane 2, wherein the capacitance between the first electrode and the second electrode is a measure for the pressure to be measured; wherein additionally at least one of the first and second electrodes comprises a conductive layer, which contains metal and glass, and wherein the metal comprises at least two noble metal elements.

Abstract: A compound body comprises a steel base element on which is deposited a heater layer. The base element is made of a precipitation hardening steel. In the form of a manifold or material feed tube in a hot duct system, said base element comprises a round or convex surface receiving the heater layer. This heater layer is a compound layer having several strata and/or strata elements which are thick film pastes or sheets and in such form are consecutively deposited, dried and baked-on. The pre-compression generated in this process in the heater layer is increased in controlled manner by precipitation hardening the base element.

Abstract: A compound body comprises a steel base element on which is deposited a heater layer. The base element is made of a precipitation hardening steel. In the form of a manifold or material feed tube in a hot duct system, said base element comprises a round or convex surface receiving the heater layer. This heater layer is a compound layer having several strata and/or strata elements which are thick film pastes or sheets and in such form are consecutively deposited, dried and baked-on. The pre-compression generated in this process in the heater layer is increased in controlled manner by precipitation hardening the base element.