Patent ID: 8727615

Claim:
A device for measuring a temperature of an internal surface of a pipe of a fore-and-aft axis, comprising: a probe including a plurality of temperature-sensitive elements; and a pressurization device coupled to a piston configured to move the free end of the temperature-sensitive elements away radially with respect to the fore-and-aft axis; wherein said pressurization device and piston are configured to apply a defined contact force to the free end of the temperature-sensitive elements moved away radially, the contact force being constant and reproducible regardless of which point of the internal surface on which the contact force is aimed to measure the temperature, wherein the probe comprises a hollow body, wherein the temperature-sensitive elements are in a form of a plurality of flexible metal wires, and wherein each metal wire has a first end thereof fixed in the hollow body and a second end thereof that is free, the second end having a hook shape such that the second end is curved towards an exterior of the probe, and the hook-shaped second end terminating parallel to the fore-and-aft axis.