Patent ID: 8396675
Filing Date: 2013-03-12
Classification: G01F,G01M,G01N,G01P

Abstract:
1. A method of using a discharge flow rate determining apparatus comprising: supersonic wave determining means for determining intensity of a supersonic wave generated at and propagated from the discharge opening in association with discharge of the fluid from the discharge opening, at a determination site distant from the discharge opening; storing means for storing a correlation existent between the intensity of the supersonic wave at the determination site and the discharge flow rate of the fluid from the discharge opening; calculating means for calculating the discharge flow rate of the fluid from the discharge opening from the supersonic wave intensity determined by the supersonic wave determining means at the determination site, based on the correlation stored in the storing means; and outputting means for outputting the discharge flow rate of the fluid from the discharge opening calculated by the calculating means as the determination result; comprising the steps for configuring the apparatus to be capable of selectively providing;