Multipoint sensor for determining an existing temperature profile of a medium, and method for producing same

A multipoint sensor for determining a temperature profile of a medium, which temperature profile consists of several measurement points, comprising:

• a tubular sheath having a closed end region;
• at least two elongate temperature sensors, each elongate temperature sensor having a temperature-sensitive component;
• at least two cylindrical spacers produced from a material having a high thermal conductivity,
• wherein an outside diameter of each spacer substantially corresponds to an inside diameter of the sheath,
• wherein the spacers are arranged one behind the other in an axially-spaced manner in the interior of the sheath,
• wherein each spacer contains a recess for holding a temperature-sensitive component of an elongate temperature sensor, whereby a measurement point of the temperature profile is sensed in each case,
• wherein each spacer, with the exception of the spacer located closest to the closed end region, has through-bores for feeding through the elongate temperature sensors fastened to the preceding spacer,
• wherein exactly one elongate temperature sensor is fed through a through-bore so that the number of through-bores of a spacer corresponds to the number of preceding spacers;
• and
• a filling material, which is arranged inside the sheath and between the spacers and which surrounds each of the elongate temperature sensors, wherein the filling material has a lower thermal conductivity than the material of the spacers.