Developments by a new flow measurement structure based on reaction force. Extended reaction flowmeters

There are presented the developments ensured by a new worldwide flow measurement structure, based on the reaction force, "the extended reaction flowmeter" ,elaborated by the first author, the subject matter of the patent application filed with European Patent Office EP 21020546, together other reaction flowmeters without moving parts. Initially are synthetically reitered the constructive and structural specificities of "the extended reaction flowmeters "(shortly "ERF"). Then, starting from the facilities offered by the specific structural scheme of the ERF, significant simplified compared to that of the known compound flowmeters, are presented the developments offered by the using of this new flow measurement structure based on reaction force, by describing the improuved results achieved by two constructive variants of ERF, regarding the binomial of the two essential features (turndown and accuracy, interrelated of the flowmeters, by achieving a large extension of the turndown to very important values, correlated with an optimal range of the accuracy values.