| abstract |
Mass flowmeter comprising a hollow conduit of a heat-conductingnmaterial for transporting in a determined flow direction a fluid with a massnflow rate to be measured, a first temperature-sensitive resistor element at anfirst position in thermal contact with this conduit for supplying heat to saidnfluid, a temperature sensor and measuring and control means connectablento the resistor element and the temperature sensor, wherein the temperaturensensor is provided in thermal contact with the conduit at a second positionnupstream in relation to said first position, and the measuring and controlnmeans are adapted to maintain a constant difference in temperature at saidnfirst and second positions. |