Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow (measuring a proportion of the volume flow G01F5/00)

Child Classifications

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• G01F 1/002 wherein the flow is in an open channel
• G01F 1/007
• G01F 1/05 by using mechanical effects
• G01F 1/56 by using electric or magnetic effects (G01F1/66 takes precedence)
• G01F 1/66 by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
• G01F 1/68 by using thermal effects
• G01F 1/704 using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter (G01F1/76, G01F25/00 take precedence)
• G01F 1/72 Devices for measuring pulsing fluid flows
• G01F 1/74 Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid
• G01F 1/76 Devices for measuring mass flow of a fluid or a fluent solid material