A method and measuring system for determining and / or monitoring a change in the state of aggregation of a measuring medium to a thermal flow meter

摘要

A method for determining and / or monitoring of aggegatzustandsänderungen of at least a first part of a measuring medium to a thermal flow meter, wherein by means of the temperature of the measuring medium, by means of the chemical composition of the measuring medium and by means of the partial pressure of the at least a portion of the measuring medium and / or by means of the overall pressure of the measuring medium, at least one phase interface line of the at least first part of the measuring medium is determined, and wherein at least a first measurement signal from a temperature difference (δt) between a first temperature sensor and a second temperature sensor of the thermal flow measuring device and / or the measurement medium from a power input (q) is provided, in the case of a state of the at least first part of the measuring medium in the region of the phase interface line of the first part of the measuring medium, disturbances in the measuring signal as a predetermined way from aggregation of the at least first part of the measuring medium, be recognized on the thermal flow meter.