DEVICE MEASURING GAS FLOW RATE Russian patent published in 2001 - IPC

FIELD: measurement technology, measurement o mass flow rate of gas with use of heat flowmeters of gas. SUBSTANCE: device measuring gas flow rate incorporates body, measurement gas line housing temperature-sensitive wire element heated by electric current. Outer walls of gas line are heat-insulated from effect of environment and optical window is located in wall of gas line. Recording of spectral radiant emittance of surface of temperature-sensitive element is conducted by conversion of optical radiation through optical window. EFFECT: reduced influence of temperature of inlet gas and environment on readings of flowmeter, simplified design with simultaneous rise of sensitivity of reliability of device. 1 dwg