This temperature is depending on the rate at which the filament loses heat on the bordering fuel, and so within the thermal conductivity. A common variant may be the Pirani gauge which uses a single platinum filament as the two the heated factor and RTD. These gauges are correct from http://vacuumsarvada45814.post-blogs.com/18657739/the-smart-trick-of-arvada-vacuum-that-nobody-is-discussing