Patent ID: 7377687
Filing Date: 2008-05-27
Classification: G01K

Abstract:
1. Apparatus for measuring the temperature of a flowing fluid comprising; a device comprising a structure bearing two adjacent temperature sensitive elements adapted to be temporarily exposed to substantially the same fluid flow conditions in use of the device and without means for substantially preheating one of said elements relative to the other, wherein the structure provides respective regions for the diffusion of heat between the fluid and the structure through the respective said elements, and the thermal products within said regions differ such that, in use, said elements experience different heat transfer rates due to such diffusion when exposed to the same fluid temperature; means for monitoring the respective temperatures of said elements over a period; and computational means to derive from respective changes of temperature of said elements the respective heat transfer rates experienced thereby and to derive the temperature of the fluid from a relationship of the temperatures of said elements and the derived heat transfer rates.