A MULTI-PATH ULTRASONIC FLOWMETER WITH ULTRASONIC CONVERTER PAIRS POSITIONED AT A HIGHER LEVEL THAN THAT OF THE ASSOCIATED ULTRASONIC REFLECTOR

摘要

An ultrasonic flowmeter with a measuring tube (1) through which flows ame-dium and which, viewed in its cross section, has a bipartite splitcircumference formingtwo halves and with two ultrasonic converter pairs (2), each with anassociated ultrasoundreflector (4), The ultrasonic converters (3) of each ultrasonic-converter pair(2) aremounted on a common circumferential half in a mutually offset position asviewed in thelongitudinal direction of the measuring tube (1), while the ultrasoundreflector (4) foreach ultrasonic converter pair (2) is positioned on the other, oppositecircumferential halfin the longitudinal direction of the measuring tube (1) between the twoultrasoniccon-verters (3), so that an ultrasound signal emitted by one ultrasonicconverter (3) of anultrasonic converter pair (2) travels along a V-shaped signal path (5) via theultrasoundreflector (4) of the associated ultrasonic converter pair (2) to the otherultrasonic converter(3) of that ultrasonic converter pair (2). The first ultrasound converter pair(2) and thesecond ultrasound reflector (4) are positioned on one circumferential half ofthe tubewhile the second ultrasound converter pair (2) and the first ultrasoundreflector (4) arepositioned on the other, opposite circumferential half of the tube, Thisresults in anim-proved measuring accuracy of the ultrasonic flowmeter.