Patent ID: 6520027
Filing Date: 2003-02-18
Classification: G01F

Abstract:
An ultrasonic flowmeter comprising:a fluid duct including therein first and second flow-paths separated by a partition; an ultrasonic sensor provided at one end of the fluid duct; a reflecting plate provided at the other end of the fluid duct, for reflecting ultrasonic waves generated by the ultrasonic sensor and reaching the reflecting plate through the first and second flow-paths, and for returning the ultrasonic waves to the ultrasonic sensor through the second and first flow-paths, respectively, which are different from the first and second flow-paths, respectively, through which the ultrasonic waves have reached the reflecting plate; and first and second connecting flow-paths communicating with the first flow-path at the vicinity of one end and the other end, respectively of the fluid duct such that fluid flows mostly in the first flow-path and not in the second flow-path.