| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic flowmeter capable of highly accuracy flow measurement even when a fluid to be measured is not filled with water in piping.SOLUTION: Provided is an ultrasonic flowmeter for emitting an ultrasonic pulse into piping in which a fluid to be measured flows and creating a flow velocity profile on the basis of a reflection signal from an ultrasonic reflector included in the fluid to be measured, the ultrasonic flowmeter comprising: a reflection signal strength profile creation unit for creating a reflection signal strength profile on the basis of the reception strength of the reflection signal; an interface determination unit for specifying an interface position on the basis of the reflection signal strength profile; and a flow rate calculation unit for calculating the flow rate of the fluid to be measured on the basis the flow velocity profile and the interface position. |
