DEVICE FOR MEASURING PARAMETERS OF GAS FLOW Russian patent published in 2007 - IPC G01P5/14 G01F1/44 G01F1/684 G01F15/04 G01F15/06 

FIELD: measuring technique.

SUBSTANCE: device comprises flow receiver whose housing is provided with passage for flow with diverging member made of a Venturi tube. One end of the diverging member is connected with the object to be measured, and the other end is connected with the atmosphere. The spaces of high and low pressure of the flow receiver are in communication with the appropriate by-passes made in the air-electrical converter whose flow chamber is connected with the spaces of high pressure and the dummy space through the by-passes and with the space of low pressure through the return passage. The by-passes receive the measuring anemometers connected to the electric circuit of the channel for measuring mass flow rate. The return passage receives the emitting and receiving members connected with the electric circuit of the channel for measuring volume flow rate. The air-electrical converter additionally receives the source of reference air flow rate and heater whose high pressure outlets are in communication with the by-passes and low pressure inlet is in communication with the flow chamber that receives the emitting and receiving members connected with the electric circuit of the channel for stabilizing reference flow rate that controls the heater. The outputs of electric circuits of channels for measuring mass and volume flow rates are connected with the inputs of the unit of the secondary processing.

EFFECT: simplified design and enhanced reliability.

4 cl, 4 dwg