FIELD: measuring equipment.
SUBSTANCE: method for measuring the mass liquid medium flow rate is that a radio wave with the frequency 
is sent through the radio transparent window in the pipeline at the angle α to the flow direction, the reflected wave with the frequency 
is mixed with a portion of the incident wave, a signal of their difference is isolated, and the spectral density of the signal is calculated. Additionally, the oscillator frequency is modulated by the symmetrical sawtooth law from 
to 
the spectral density of the difference frequency signal is calculated separately in the growing - 
and falling portion of the carrier frequency - 
their cross-correlation function and the difference modulus 
are calculated|, the mass flow rate is determined by the frequency shift corresponding to the maximum cross-correlation function and by the frequency 
calculated by equating 
where b - the frequency range defined from the possible signal frequency band.
EFFECT: improving the accuracy.
5 dwg
| Title | Year | Author | Number |
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|
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| DOPPLER METHOD FOR MEASURING GROUND SPEED | 2016 |
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