ULTRASONIC FLOWMETER

PROBLEM TO BE SOLVED: To measure accurately flow speed and a flow rate by allowing a measuring liquid flowing-in from an inflow port to an outflow port to flow approximately linearly so as to cross obliquely to the transmission/reception direction of an ultrasonic wave from each transmission/reception piezoelectric vibrator mounted on each facing wall of a case by forming the inflow port and the outflow port on each facing corner of the case. SOLUTION: In this ultrasonic flowmeter, the case 7 is constituted so that the interval between each of facing walls 7a, 7b is long, and transmission/reception piezoelectric vibrators 8, 9 are mounted on the facing walls 7a, 7b, and the transmission/reception piezoelectric vibrators 8, 9 are connected respectively to a flow measuring circuit 10. The inflow port 7c and the outflow port 7d are formed respectively on an upper part or a lower part of the facing walls 7a, 7b of the case 7. COPYRIGHT: (C)2007,JPO&INPIT