Abstract Title of the Invention:- “GAS PROBES” A thermowell or gas sampling probe comprising an elongated tube with one or more helical fins wound longitudinally along and around at least part of the outer surface of said tube where the width of the fin is in the range 0.005D to 0.2D; and the depth of the fin ...

A technique for indirectly determining the temperature of a fluid includes directing at least a portion of the fluid around the outside of a thermally conductive body so as to produce a substantially uniform temperature therein. The fluid temperature is then determined by measuring the resulting temperature wit...