DIFFERENTIAL DEVICE FOR MEASURING TEMPERATURE OF GAS FLOW Russian patent published in 2017 - IPC G01K13/02 

FIELD: measuring equipment.

SUBSTANCE: proposed differential temperature gas flow measuring device comprises two measurement channels, each of which comprises a jet generator and a piezoelectric transducer. The measuring channel are supplied with adaptive selectors, whose inputs are connected to the outputs of the piezoelectric transducers, and the outputs are connected to inputs of subtracting circuits pass information processing unit whose output is input through the "OR" is output element of the entire device. The adaptive selector outputs are connected to the first inputs of respective schemes "AND" the second inputs of which are connected via the inverter to the output of the opposite adaptive selector and output of the circuit "AND" through the respective frequency dividers connected to the "OR" element inputs.

EFFECT: increased speed and accuracy combined with its simplistic.

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