DEVICE FOR DETERMINATION OF DENSITY OF NONPOLAR MATTERS IN DIELECTRIC PIPE- LINES Russian patent published in 2001 - IPC

FIELD: determination of density of nonpolar matters in dielectric pipe-lines. SUBSTANCE: device has a microwave oscillator, the first and second coupling elements, microwave detector, indicator whose output serves as the device output, ring vibrator made in the form of a folded rectangular waveguide diametrically fastened with the open ends on the external surface of the dielectric pipe-line, the output of the microwave oscillator via the first coupling element is connected to the input of the ring vibrator, the output of the ring vibrator via the second coupling element is connected to the input of the microwave detector, whose output is connected to the indicator input. EFFECT: enhanced accuracy of measurement. 1 dwg