ULTRASONIC FLOWMETER

摘要

Disclosed is an ultrasonic flowmeter which eliminates the need for a complicated configuration such as hermetic seal and is implemented inexpensively and easily. A typical ultrasonic flowmeter (10) is provided with a flow path body (1), a measurement flow path (2) which is disposed in the flow path body (1), a pair of ultrasonic sensors (3), a wall (6) which forms the measurement flow path (2) and on which the ultrasonic sensors (3) are disposed, a propagation time measuring means (4) which measures the propagation time of an ultrasonic wave between the ultrasonic sensors (3), and a flow rate calculating means (5) which calculates the flow rate from the propagation time by an operation, the ultrasonic flowmeter being configured to house the flow path body, the wall (6), and a seal member (7) therebetween to prevent a fluid to be measured from leaking.