FIELD: measuring technology.
SUBSTANCE: application: for accurate measurement of conveyance fluid. A converter comprises a body with its internal end, external end and internal cavity, fixed on a metering sleeve of the ultrasonic flowmetre, a piezoelectric element mounted in the internal cavity to be inserted and pulled out thereof, and an acoustic matching layer located so that to isolate the external end from the fluid flow and has an acoustic impedance, intermediate between that of the piezoelectric element and the fluid in the ultrasonic flowmetre.
EFFECT: higher measurement accuracy of conveyance fluid or gas, as well as shorter maintenance of the ultrasonic converter.
16 cl, 11 dwg
