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AssigneeTemperaturmesstechnik Geraberg GmbH
InventorsKlaus Irrgang, Barbara Irrgang, Hartmut Kaempf, Winfried Heinz, Klaus-Dieter Schaetzler, Aldo Bojarski, Werner Fichte
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The invention relates to a high-temperature sensor, which can be used at temperatures of at least 600° C. and comprises a metallic protective tube and a measuring resistance that is surrounded by a ceramic powder. The measuring resistance is connected to the electric cable by means of stress-relieved measuring resistance connecting wires and internal conductors. The latter are provided with a solid and/or flexible insulation consisting of a ceramic material. The measuring resistance and the internal conductors are arranged in a metallic protective tube, which narrows in the vicinity of the measuring resistance. The ceramic powder contains admixtures of oxygen-giving oxide compounds.
High-temperature sensor comprising a metallic protective tube and a measuring resistance arranged in a ceramic casing together with strain-relieved measuring resistance connection wires, the ceramic casing being surrounded by a ceramic powder and connected to an electric connecting cable, wherein the strain-relieved measuring resistance connection wires and internal conductors connect the measuring resistance to the electric cable, said measuring resistance encapsulated in the ceramic casing and said internal conductors are arranged in said metallic protective tube, said protective metallic tube has a tapered tip in the vicinity of said measuring resistance and said ceramic powder densely fills the protective tube and comprises admixtures of oxygen-providing oxide compounds and the sensor comprises at least one auxiliary component arranged proximate connection of the connecting cable to the protective tube, the at least one auxiliary component having a higher coefficient of thermal expansion than the protective tube.
Dependencies are inferred from the claim text.