MEASURING METHOD OF THERMOGAS-DYNAMIC FLOW PARAMETERS Russian patent published in 2013 - IPC G01J5/52 

FIELD: measurement equipment.

SUBSTANCE: measuring method of thermogas-dynamic flow parameters involves formation of a measuring channel, measurement of value of flow emission parameter, comparison of the measured value of the emission parameter to the value of similar emission parameter of an absolutely black body (ABB), which is obtained at calibration of ABB at the specified temperature and concentration of absorbing components, and determination of at least one thermodynamic flow parameter as per comparison result. At that, measured flow emission parameter and ABB emission parameter are decomposed as to lengths of waves to obtain an emission spectrum. Besides, temperature and concentration of absorbing components in the measuring channel are measured, values of flow and ABB emission parameters are corrected depending on measurement results, flow emission is decomposed into n constituents, in compliance with the number of emitting elements of the measuring channel, emission of n element of the measuring channel is determined, and relative spectrum emission intensity of n element of the measuring channel is used as flow emission parameter.

EFFECT: providing the possibility of improving measurement accuracy of parameters of high-temperature flows using a radiation method.

2 cl, 6 dwg