FIELD: measuring devices.
SUBSTANCE: this invention relates to an ultrasonic flowmeter for measuring the flow rate and / or flow rate of a fluid. Ultrasonic flowmeter comprises two ultrasonic transducers, having connection flanges for connecting the fluid conduits and an intermediate portion adapted to pass a fluid, at least two placed in the middle part of the ultrasonic transducer, that form a pair of ultrasonic transducers and between which there is a measuring circuit passing through the flow, a pressure sensor held in the middle portion in the pressure sensor housing and having a fluid communication with the middle portion through the piston housing, a calibration terminal, a pressure sensor is holding in the middle of the pressure sensor housing and having a fluid communication with the interior of the middle part through the piston socket, wherein the piston in the piston seat is adapted to be brought into two positions, wherein in the first position, the pressure sensor has a fluid communication with the interior of the middle portion, and in the second position, the pressure sensor through the piston housing has a fluid communication with the calibration terminal.
EFFECT: creating a simple and compact ultrasonic flowmeter with the ability to simply calibrate the pressure sensor in the flowmeter.
8 cl, 5 dwg
