SENSOR OF ULTRASONIC FLOWMETER Russian patent published in 2016 - IPC G01F1/66 

FIELD: measuring equipment.

SUBSTANCE: invention relates to the measurement technology and can be used to measure the flow of media in various industries related to the transportation of liquids and gases through pipelines, such as oil refining, oil and gas industries, systems engineering Energy. Ultrasonic flow sensor comprises a measuring section running from the pipe portion having a cross section in the shape of a polygon and electroacoustic transducers (EMAT) arranged separately from each other in the input and output portions of the measuring section. Sensor is characterized in that the measuring portion is all-metal, or plastic so that the cross section of the flow of said polygon is arranged an even number of faces on opposite ends of each pair of parallel faces in a transverse recess in the wall material flow part installed at least two rectangular electroacoustic transducers transverse waves with the same angles of inclination to the longitudinal axis a distance of three or four pipe diameters, each of which is separated from the flow part of the resonant bridge, while on the surface of the measurement pipe section acoustic noise absorber configured as a comb with a step more than half a wavelength.

EFFECT: improving the accuracy of the flow measurement of liquids and gases in pipelines under conditions of temperature and pressure controlled environment.

1 cl, 10 dwg